# US 10,120,085 B2 · Method for gain matching neutron detectors containing various He—3 partial pressures

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- Number: US 10,120,085 B2
- Document ID: US10120085B2
- Status: Granted
- Kind: B2
- Application number: 15/718,506
- Filed: 2017-09-28
- Published: 2018-01-18
- Granted: 2018-11-06
- Earliest claimed: 2013-12-12
- Assignees: General Electric Company
- Applicants: General Electric Company
- Inventors: Kevin Scott McKinny; Matthew Thomas McPheeters
- Web page: https://patentgrep.com/patent/US10120085B2

## CPC

- G01T 3/008: {using an ionisation chamber filled with a gas, liquid or solid, e.g. frozen liquid, dielectric (G01T3/006 takes precedence)}
- G01T 3/00: Measuring neutron radiation (G01T5/00 takes precedence)
- G01T: MEASUREMENT OF NUCLEAR OR X-RADIATION (radiation analysis of materials, mass spectrometry G01N23/00; tubes for determining the presence, intensity, density or energy of radiation or particles H01J47/00)

## Abstract

An arrangement for detecting neutrons. In an aspect, the arrangement includes a first neutron detector including a neutron-sensitive substance, and the first neutron detector having an associated gain performance. The arrangement includes a second neutron detector including neutron-sensitive substance, and the second neutron detector having an associated gain performance. The gain performance of the second neutron detector matching the gain performance of the first neutron detector. In an aspect, the arrangement includes a first neutron detector including at least some helium. The arrangement includes a second neutron detector including at least some helium and at least some Boron-10.

## Claims

### Claim 1

An arrangement for detecting neutrons, the arrangement comprising:
a first neutron detector comprising a first neutron-sensitive substance, the first neutron detector having an associated gain performance; and
a second neutron detector comprising a second neutron-sensitive substance that differs from the first neutron-sensitive substance, the second neutron detector having an associated gain performance;
wherein the gain performance of the second neutron detector matches the gain performance of the first neutron detector.

### Claim 2 (depends on 1)

The arrangement as set forth in claim 1, wherein the first neutron-sensitive substance of the first detector comprises at least some Boron-10.

### Claim 3 (depends on 1)

The arrangement as set forth in claim 1, wherein the first neutron-sensitive substance of the first detector comprises at least some Helium-3.

### Claim 4 (depends on 3)

The arrangement as set forth in claim 3, wherein the second neutron detector comprises zero Helium-3.

### Claim 5 (depends on 3)

The arrangement as set forth in claim 3, wherein the Helium-3 provides a partial pressure.

### Claim 6 (depends on 1)

The arrangement as set forth in claim 1, wherein at least one of the first and second neutron detectors comprises at least some Helium-4.

### Claim 7 (depends on 6)

The arrangement as set forth in claim 6, wherein the first neutron detector comprises at least some Helium-4.

### Claim 8 (depends on 6)

The arrangement as set forth in claim 6, wherein both of the first and second neutron detectors comprises at least some Helium-4.

### Claim 9 (depends on 1)

The arrangement as set forth in claim 1, wherein at least one of the first and second neutron detectors comprises zero Helium-4.

### Claim 10 (depends on 1)

The arrangement as set forth in claim 1, wherein at least one of the first and second neutron detectors comprises zero Helium-3.

### Claim 11

An arrangement for detecting neutrons, the arrangement comprising:
a first neutron detector comprising a first amount of helium, the first amount of helium including a first amount of Helium-3; and
a second neutron detector comprising a second amount of helium, the second amount of helium including a second amount of Helium-3, and at least some Boron-10;
wherein the first amount of Helium-3 is different from the second amount of Helium-3, and wherein the first amount of helium is equal to the second amount of helium.

### Claim 12 (depends on 11)

The arrangement as set forth in claim 11, wherein the first neutron detector comprises at least some neutron-sensitive substance.

### Claim 13 (depends on 12)

The arrangement as set forth in claim 12, wherein the at least some neutron-sensitive substance comprises a selected neutron sensitive material.

### Claim 14 (depends on 13)

The arrangement as set forth in claim 13, wherein the selected neutron sensitive material comprises at least some Boron-10.

### Claim 15 (depends on 11)

The arrangement as set forth in claim 11, wherein the first amount of helium of the first neutron detector includes at least some Helium-4.

### Claim 16 (depends on 11)

The arrangement as set forth in claim 11, wherein the second amount of helium of the second neutron detector includes at least some Helium-4.

### Claim 17

An arrangement for detecting neutrons, the arrangement comprising:
a first neutron detector comprising at least some helium; and
a second neutron detector comprising at least some helium and at least some Boron-10;
wherein the first neutron detector has an associated gain performance, the second neutron detector has an associated gain performance, and the gain performance of the second neutron detector matches the gain performance of the first neutron detector.