Enhanced multifunctional paint for detection of radiation

Patent metadata

Field	Value
Publication number	US-9588229-B2
Application number	US-201514659848-A
Country	US
Kind code	B2
Filing date	Mar 17, 2015
Priority date	Mar 17, 2015
Publication date	Mar 7, 2017
Grant date	Mar 7, 2017

Abstract

An enhanced multifunctional paint apparatus, systems, and methods for detecting radiation on a surface include providing scintillation particles; providing an enhance neutron absorptive material; providing a binder; combining the scintillation particles, the enhance neutron absorptive material, and the binder creating a multifunctional paint; applying the multifunctional paint to the surface; and monitoring the surface for detecting radiation.

First claim

The invention claimed is:

1. A method of detecting and mapping radiation on a surface using thermal luminescence from the radiation, comprising the steps of:
providing scintillation particles;
providing a neutron absorptive material;
encapsulating said scintillation particles in said neutron absorptive material by coating said scintillation particles with said neutron absorptive material so that said neutron absorptive material entirely surrounds and encases said scintillation particles to produce a multiplicity of individual capsules with each capsule having a scintillation particle entirely surrounded and encased by said neutron absorptive material;
providing a binder;
combining said multiplicity of capsules and said binder creating a multifunctional paint that has scintillation particles coated with neutron absorptive material to enhance detection;
providing a spray device;
applying said multifunctional paint to the surface by spraying said multifunctional paint onto the surface with said spray device producing a coating of said multifunctional paint on the surface that has scintillation particles coated with neutron absorptive material to enhance detection;
providing a laser that produces a laser beam;
providing a photomultiplier that can detect the thermal luminescence from the radiation exposure;
monitoring said coating of said multifunctional paint on the surface by interrogating said coating of said multifunctional paint on the surface with said laser beam from said laser and using said photomultiplier to detect the thermal luminescence from the radiation; and
mapping the thermal luminescence from the radiation for detecting and mapping radiation on the surface.

2. The method of detecting radiation on a surface of claim 1 wherein said step of applying said multifunctional paint to the surface comprises applying said multifunctional paint to the surface in the form of a liquid.

3. The method of detecting radiation on a surface of claim 1 wherein said step of applying said multifunctional paint to the surface comprises applying said multifunctional paint to the surface in the form of a powder.

4. The method of detecting radiation on a surface of claim 1 wherein said enhance neutron absorptive material is boron.

5. The method of detecting radiation on a surface of claim 1 wherein said enhance neutron absorptive material is a boron-10 isotope.

6. The method of detecting radiation on a surface of claim 1 wherein said enhance neutron absorptive material is metastable boron-11.

7. The method of detecting radiation on a surface of claim 1 wherein said enhance neutron absorptive material includes materials capable of radionuclide chemisorption.

8. The method of detecting radiation on a surface of claim 1 wherein said enhance neutron absorptive material includes a coating of silica.

9. The method of detecting radiation on a surface of claim 1 wherein said enhance neutron absorptive material includes a coating of carbon aerogel.

10. The method of detecting radiation on a surface of claim 1 wherein said step of monitoring said coating of said multifunctional paint on the surface utilizes a stand-off monitoring system.

11. The method of detecting radiation on a surface of claim 10 wherein said stand-off monitoring system utilizes a laser heat source that sends a beam to heat said multifunctional paint on the surface and produce the thermal luminesce.

12. The method of detecting radiation on a surface of claim 11 wherein the thermal luminesce is detected by a detector system.

13. The method of detecting radiation on a surface of claim 12 wherein said detector system includes a camera.

14. The method of detecting radiation on a surface of claim 12 wherein said detector system utilizes said photomultiplier and said camera.

15. A paint system that detects and maps radiation emanating from a surface using thermal luminescence from the radiation, comprising:
an enhanced multifunctional paint that includes
a multiplicity of individual capsules wherein each individual capsule has
a scintillation particle and
a coating of neutron absorptive material on said scintillation particle that entirely surrounds and encases said scintillation particle thereby producing said individual capsule, said coating that entirely surrounds and encases said scintillation particle producing said individual capsule and enhances detection of radiation; and
a binder combined with said multiplicity of individual capsules, wherein said multiplicity of individual capsules and said binder produce said multifunctional paint;
a system for applying said multifunctional paint onto the surface by spraying said multifunctional paint onto the surface producing a multifunctional paint coating on the surface that includes said scintillation particles coated with said neutron absorptive material to enhance detection,
a monitoring system for monitoring said multifunctional paint coating on the surface that includes a laser that produces a laser beam and a photomultiplier by interrogating said multifunctional paint coating on the surface using said laser beam from said laser and using said photomultiplier to detect the thermal luminescence from the radiation; and
a mapping system for mapping the thermal luminescence from the radiation providing a paint system that detects and maps radiation emanating from the surface.

16. The paint on a surface that detects and maps radiation of claim 15 wherein said coating of neutron absorptive material on said scintillation particle comprises a coating of materials capable of radionuclide chemisorption.

17. The paint on a surface that detects and maps radiation of claim 16 wherein said coating of materials capable of radionuclide chemisorption comprises silica.

18. The paint on a surface that detects and maps radiation of claim 16 wherein said coating of materials capable of radionuclide chemisorption comprises carbon aerogel.

Assignees

• L Livermore Nat Security Llc

Inventors

• Farmer Joseph C
• Moses Edward Ira
• Rubenchik Alexander M

Classifications

• C09D5/22 Primary

  Luminous paints {(luminescent compositions C09K11/00)} · CPC title

• C23C24/04

  Impact or kinetic deposition of particles · CPC title

• G01T1/11 Primary

  Thermo-luminescent dosimeters {(thermo-luminescent compositions C09K11/00)} · CPC title

• C09D5/32

  Radiation-absorbing paints {(protection against X-, gamma- or corpuscular radiation G21F)} · CPC title

• G01T1/20

  with scintillation detectors · CPC title