Patent
Atlas literature
Patent
US 10,036,728Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 3A is a schematic diagram of a set up for detecting ions showing an ion source (300, producing ions (305)), a vacuum chamber (310), a vacuum pumping …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ionizing radiation detection device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to fl ow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current. Currently amended
The device according to claim 1, further comprising a display. Original
The device according to claim 1, further comprising an amperometry circuit that measures current through the CNM film. Original
The device according to claim 1, wherein a voltage applied across the pads in the range from about 0.01V to about 6. O V allows detection of ions as a modulation of current flowing through the CNM film. Original
The device according to claim 1 having a gain of about 1 0 4 to 1 0 7. Original
The device according to claim 1, wherein the strip of CNM film has a width in the range from about 20 n m to about 100 m. Original
The device according to claim 1, wherein the strip of CNM film has a length in the range from about 10 nm to about 1 mm. Original
(Or ig inal) The device according to claim 1 wherein the insulating substrate comprises a material selected from the group consisting of: Si, SiO 2, polydimethylsiloxane (PDMS), SU-8 photoresist, and poly(methyl methacrylate) (PMMA). Original
The device according to claim 1, wherein the thickness of the CNM film is in the range from about I₁ nm to about 100 nm and its surface area is in the range from about 200 nm2 to about 1.5 mm2 Original
The device according to claim 1, wherein the weight of the device is in the range from about 100 p g to about 1 g. Original
- 6.-Canceled
Canceled
. Canceled
The device according to claim 4-21, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mix tu re thereof. Currently amended
The device according to claim 41, wherein the CNM film consists of i-s- graphene and the graphene is single atomic layer thickness. Currently amended
. Canceled
- 29.. Canceled
Canceled
A method of measuring the presence of ionizing radiation in an environment, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) measuring current through the CNM film of the device; and (c) comparing the current to a standard curve correlating current flow to known amounts of ionizing radiation for the device to quantify said ionizing radiation. Currently amended
The method according to claim 30, wherein the strip of CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The method according to claim 30, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
- 33.. Canceled
Canceled
A method of quantifying an ionizing radiation, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) exposing the device to the ionizing radiation; (c) measuring a change in current fl ow through the CNM film of the device upon exposure to the ionizing radiation; and (d) comparing the change in current flow to a standard curve correlating changes in current flow to known amounts of ionizing radiation to quantify said ionizing radiation. Currently amended
The device according to claim 34, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The device according to claim 34, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
Layer stacks claimed or described, ordered top of device to substrate.
ionizing radiation detection device
Materials described outside the worked examples.
carbon-based nanomaterial (CNM) film
single-walled carbon nanotubes (SWCNT)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gain of ionizing radiation detection device | 10000–10000000 dimensionless | carbon-based nanomaterial (CNM) film |
voltage applied across pads for ion detection | 0.01–6 V |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,036,728Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 3A is a schematic diagram of a set up for detecting ions showing an ion source (300, producing ions (305)), a vacuum chamber (310), a vacuum pumping …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ionizing radiation detection device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to fl ow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current. Currently amended
The device according to claim 1, further comprising a display. Original
The device according to claim 1, further comprising an amperometry circuit that measures current through the CNM film. Original
The device according to claim 1, wherein a voltage applied across the pads in the range from about 0.01V to about 6. O V allows detection of ions as a modulation of current flowing through the CNM film. Original
The device according to claim 1 having a gain of about 1 0 4 to 1 0 7. Original
The device according to claim 1, wherein the strip of CNM film has a width in the range from about 20 n m to about 100 m. Original
The device according to claim 1, wherein the strip of CNM film has a length in the range from about 10 nm to about 1 mm. Original
(Or ig inal) The device according to claim 1 wherein the insulating substrate comprises a material selected from the group consisting of: Si, SiO 2, polydimethylsiloxane (PDMS), SU-8 photoresist, and poly(methyl methacrylate) (PMMA). Original
The device according to claim 1, wherein the thickness of the CNM film is in the range from about I₁ nm to about 100 nm and its surface area is in the range from about 200 nm2 to about 1.5 mm2 Original
The device according to claim 1, wherein the weight of the device is in the range from about 100 p g to about 1 g. Original
- 6.-Canceled
Canceled
. Canceled
The device according to claim 4-21, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mix tu re thereof. Currently amended
The device according to claim 41, wherein the CNM film consists of i-s- graphene and the graphene is single atomic layer thickness. Currently amended
. Canceled
- 29.. Canceled
Canceled
A method of measuring the presence of ionizing radiation in an environment, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) measuring current through the CNM film of the device; and (c) comparing the current to a standard curve correlating current flow to known amounts of ionizing radiation for the device to quantify said ionizing radiation. Currently amended
The method according to claim 30, wherein the strip of CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The method according to claim 30, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
- 33.. Canceled
Canceled
A method of quantifying an ionizing radiation, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) exposing the device to the ionizing radiation; (c) measuring a change in current fl ow through the CNM film of the device upon exposure to the ionizing radiation; and (d) comparing the change in current flow to a standard curve correlating changes in current flow to known amounts of ionizing radiation to quantify said ionizing radiation. Currently amended
The device according to claim 34, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The device according to claim 34, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
Layer stacks claimed or described, ordered top of device to substrate.
ionizing radiation detection device
Materials described outside the worked examples.
carbon-based nanomaterial (CNM) film
single-walled carbon nanotubes (SWCNT)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gain of ionizing radiation detection device | 10000–10000000 dimensionless | carbon-based nanomaterial (CNM) film |
voltage applied across pads for ion detection | 0.01–6 V |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,036,728Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 3A is a schematic diagram of a set up for detecting ions showing an ion source (300, producing ions (305)), a vacuum chamber (310), a vacuum pumping …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ionizing radiation detection device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to fl ow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current. Currently amended
The device according to claim 1, further comprising a display. Original
The device according to claim 1, further comprising an amperometry circuit that measures current through the CNM film. Original
The device according to claim 1, wherein a voltage applied across the pads in the range from about 0.01V to about 6. O V allows detection of ions as a modulation of current flowing through the CNM film. Original
The device according to claim 1 having a gain of about 1 0 4 to 1 0 7. Original
The device according to claim 1, wherein the strip of CNM film has a width in the range from about 20 n m to about 100 m. Original
The device according to claim 1, wherein the strip of CNM film has a length in the range from about 10 nm to about 1 mm. Original
(Or ig inal) The device according to claim 1 wherein the insulating substrate comprises a material selected from the group consisting of: Si, SiO 2, polydimethylsiloxane (PDMS), SU-8 photoresist, and poly(methyl methacrylate) (PMMA). Original
The device according to claim 1, wherein the thickness of the CNM film is in the range from about I₁ nm to about 100 nm and its surface area is in the range from about 200 nm2 to about 1.5 mm2 Original
The device according to claim 1, wherein the weight of the device is in the range from about 100 p g to about 1 g. Original
- 6.-Canceled
Canceled
. Canceled
The device according to claim 4-21, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mix tu re thereof. Currently amended
The device according to claim 41, wherein the CNM film consists of i-s- graphene and the graphene is single atomic layer thickness. Currently amended
. Canceled
- 29.. Canceled
Canceled
A method of measuring the presence of ionizing radiation in an environment, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) measuring current through the CNM film of the device; and (c) comparing the current to a standard curve correlating current flow to known amounts of ionizing radiation for the device to quantify said ionizing radiation. Currently amended
The method according to claim 30, wherein the strip of CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The method according to claim 30, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
- 33.. Canceled
Canceled
A method of quantifying an ionizing radiation, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) exposing the device to the ionizing radiation; (c) measuring a change in current fl ow through the CNM film of the device upon exposure to the ionizing radiation; and (d) comparing the change in current flow to a standard curve correlating changes in current flow to known amounts of ionizing radiation to quantify said ionizing radiation. Currently amended
The device according to claim 34, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The device according to claim 34, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
Layer stacks claimed or described, ordered top of device to substrate.
ionizing radiation detection device
Materials described outside the worked examples.
carbon-based nanomaterial (CNM) film
single-walled carbon nanotubes (SWCNT)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gain of ionizing radiation detection device | 10000–10000000 dimensionless | carbon-based nanomaterial (CNM) film |
voltage applied across pads for ion detection | 0.01–6 V |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,036,728Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 3A is a schematic diagram of a set up for detecting ions showing an ion source (300, producing ions (305)), a vacuum chamber (310), a vacuum pumping …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An ionizing radiation detection device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to fl ow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current. Currently amended
The device according to claim 1, further comprising a display. Original
The device according to claim 1, further comprising an amperometry circuit that measures current through the CNM film. Original
The device according to claim 1, wherein a voltage applied across the pads in the range from about 0.01V to about 6. O V allows detection of ions as a modulation of current flowing through the CNM film. Original
The device according to claim 1 having a gain of about 1 0 4 to 1 0 7. Original
The device according to claim 1, wherein the strip of CNM film has a width in the range from about 20 n m to about 100 m. Original
The device according to claim 1, wherein the strip of CNM film has a length in the range from about 10 nm to about 1 mm. Original
(Or ig inal) The device according to claim 1 wherein the insulating substrate comprises a material selected from the group consisting of: Si, SiO 2, polydimethylsiloxane (PDMS), SU-8 photoresist, and poly(methyl methacrylate) (PMMA). Original
The device according to claim 1, wherein the thickness of the CNM film is in the range from about I₁ nm to about 100 nm and its surface area is in the range from about 200 nm2 to about 1.5 mm2 Original
The device according to claim 1, wherein the weight of the device is in the range from about 100 p g to about 1 g. Original
- 6.-Canceled
Canceled
. Canceled
The device according to claim 4-21, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mix tu re thereof. Currently amended
The device according to claim 41, wherein the CNM film consists of i-s- graphene and the graphene is single atomic layer thickness. Currently amended
. Canceled
- 29.. Canceled
Canceled
A method of measuring the presence of ionizing radiation in an environment, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) measuring current through the CNM film of the device; and (c) comparing the current to a standard curve correlating current flow to known amounts of ionizing radiation for the device to quantify said ionizing radiation. Currently amended
The method according to claim 30, wherein the strip of CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The method according to claim 30, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
- 33.. Canceled
Canceled
A method of quantifying an ionizing radiation, the method comprising: (a) providing a device comprising: an insulating substrate; first and second metallic contact pads disposed on a surface of the substrate; a strip of carbon-based nanomaterial (CNM) film, the strip having a first end and a second end, the first end in contact with the first pad and the second end in contact with the second pad, wherein said strip of CNM film consists of graphene or a plurality of single-walled carbon nanotubes (SWCNT); and a sealed housing enclosing the substrate, pads, and CNM film and forming a chamber; wherein the chamber comprises a gas that becomes ionized by radiation incident on the device; and wherein a potential difference applied across the pads causes current to flow through the CNM film and ions present in the chamber are detected by a change in the magnitude of said current; (b) exposing the device to the ionizing radiation; (c) measuring a change in current fl ow through the CNM film of the device upon exposure to the ionizing radiation; and (d) comparing the change in current flow to a standard curve correlating changes in current flow to known amounts of ionizing radiation to quantify said ionizing radiation. Currently amended
The device according to claim 34, wherein the CNM film consists of a plurality of SWCNT which are metallic, semi-conducting, or a mixture thereof. New
The device according to claim 34, wherein the CNM film consists of graphene and the graphene is single atomic layer thickness. New
Layer stacks claimed or described, ordered top of device to substrate.
ionizing radiation detection device
Materials described outside the worked examples.
carbon-based nanomaterial (CNM) film
single-walled carbon nanotubes (SWCNT)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 D is an SEM image of a microscale device of a SWCNT strip transferred to bridge on the polymer trench having Au contact pad and in contact with the …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
gain of ionizing radiation detection device | 10000–10000000 dimensionless | carbon-based nanomaterial (CNM) film |
voltage applied across pads for ion detection | 0.01–6 V |
Related documents with shared materials, methods, properties, or citations.
graphene
silicon
Si
silicon dioxide
SiO₂
polydimethylsiloxane (PDMS)
SU-8 photoresist
poly(methyl methacrylate) (PMMA)
palladium (Pd)
Pd
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
carbon-based nanomaterial (CNM) film |
width of CNM film strip | 20–100000000 nm | carbon-based nanomaterial (CNM) film |
length of CNM film strip | 10–1000000 nm | carbon-based nanomaterial (CNM) film |
thickness of CNM film | 1–100 nm | carbon-based nanomaterial (CNM) film |
surface area of CNM film | 200–1500000 nm2 | carbon-based nanomaterial (CNM) film |
weight of the device | 1e-10–1 g | — |
Voltage | 0.1–3 V | — |
Thickness | 0.001 mm | — |
Pressure | 0.0001 Torr | — |
Voltage | 0.5–3 V | — |
Thickness | 11–100 nm | — |
Thickness | 1–999 nm | — |
Thickness | 1.5–2 mm | — |
Pressure | 0–3 Torr | — |
Pressure | ≥ 0.000001 Torr | — |
Thickness | ≥ 3 mm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
graphene
silicon
Si
silicon dioxide
SiO₂
polydimethylsiloxane (PDMS)
SU-8 photoresist
poly(methyl methacrylate) (PMMA)
palladium (Pd)
Pd
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
carbon-based nanomaterial (CNM) film |
width of CNM film strip | 20–100000000 nm | carbon-based nanomaterial (CNM) film |
length of CNM film strip | 10–1000000 nm | carbon-based nanomaterial (CNM) film |
thickness of CNM film | 1–100 nm | carbon-based nanomaterial (CNM) film |
surface area of CNM film | 200–1500000 nm2 | carbon-based nanomaterial (CNM) film |
weight of the device | 1e-10–1 g | — |
Voltage | 0.1–3 V | — |
Thickness | 0.001 mm | — |
Pressure | 0.0001 Torr | — |
Voltage | 0.5–3 V | — |
Thickness | 11–100 nm | — |
Thickness | 1–999 nm | — |
Thickness | 1.5–2 mm | — |
Pressure | 0–3 Torr | — |
Pressure | ≥ 0.000001 Torr | — |
Thickness | ≥ 3 mm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
graphene
silicon
Si
silicon dioxide
SiO₂
polydimethylsiloxane (PDMS)
SU-8 photoresist
poly(methyl methacrylate) (PMMA)
palladium (Pd)
Pd
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
carbon-based nanomaterial (CNM) film |
width of CNM film strip | 20–100000000 nm | carbon-based nanomaterial (CNM) film |
length of CNM film strip | 10–1000000 nm | carbon-based nanomaterial (CNM) film |
thickness of CNM film | 1–100 nm | carbon-based nanomaterial (CNM) film |
surface area of CNM film | 200–1500000 nm2 | carbon-based nanomaterial (CNM) film |
weight of the device | 1e-10–1 g | — |
Voltage | 0.1–3 V | — |
Thickness | 0.001 mm | — |
Pressure | 0.0001 Torr | — |
Voltage | 0.5–3 V | — |
Thickness | 11–100 nm | — |
Thickness | 1–999 nm | — |
Thickness | 1.5–2 mm | — |
Pressure | 0–3 Torr | — |
Pressure | ≥ 0.000001 Torr | — |
Thickness | ≥ 3 mm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
graphene
silicon
Si
silicon dioxide
SiO₂
polydimethylsiloxane (PDMS)
SU-8 photoresist
poly(methyl methacrylate) (PMMA)
palladium (Pd)
Pd
FIG. 2B is a scanning electron microscope (SEM) image of carbon nanotubes. 10
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 4A is a graph of variation in the flow of current through an exemplary ion sensor 25 device as a function of time, at varying pressure, and as the ion …
FIG. 5B is a graph of variation in the change in the resistance of the CNM film 5 during the "on- period" at different voltages, plotted as a function of …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 6A is a graph of variation in the current flow (in p A; y-axis) through the CNM of an ion sensor device as a function of time (x-axis) at different …
FIG. 7A is a graph of the variation in the number of ions as a function of distance 30 between the ion source and the CNM film (or Faraday cup) in the chamber …
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 8B is a graph of the background current detected by a CNM film-containing ion detector device as a function of time at 0.2V. 10
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
FIG. 9A. Increased pressure led to a higher change in the current flowing through the graphene as the ion source was turned on.
carbon-based nanomaterial (CNM) film |
width of CNM film strip | 20–100000000 nm | carbon-based nanomaterial (CNM) film |
length of CNM film strip | 10–1000000 nm | carbon-based nanomaterial (CNM) film |
thickness of CNM film | 1–100 nm | carbon-based nanomaterial (CNM) film |
surface area of CNM film | 200–1500000 nm2 | carbon-based nanomaterial (CNM) film |
weight of the device | 1e-10–1 g | — |
Voltage | 0.1–3 V | — |
Thickness | 0.001 mm | — |
Pressure | 0.0001 Torr | — |
Voltage | 0.5–3 V | — |
Thickness | 11–100 nm | — |
Thickness | 1–999 nm | — |
Thickness | 1.5–2 mm | — |
Pressure | 0–3 Torr | — |
Pressure | ≥ 0.000001 Torr | — |
Thickness | ≥ 3 mm | — |
Thickness | ≥ 1 mm | — |
Thickness | ≥ 1 cm | — |
