FABRICATION OF A HIGH PERFORMANCE NEUTRON DETECTOR WITH NEAR ZERO GAMA CROSS TALK
First Claim
1. A method of fabrication for a neutron detector comprising one or more scintillation detector layers in a modular configuration, the method comprising:
- a. mixing 6LiF with a binder medium with a scintillator material;
b. forming one or more active scintillation layers with slots that run lengthwise across each active scintillation layer, each layer having a top piece and a bottom piece that have matching peaks and valleys such that when the peaks and valleys of the two pieces face each other and the two pieces abut each other, grooves are formed at the matching valleys to hold in the grooves one or more fiber optic light media surrounded by scintillator material; and
c. positioning one or more fiber optic light media in the grooves, such that the fiber optic light media are optically coupled with adjacent scintillation material of the one or more active scintillation layers.
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Abstract
A fabrication method is provided for making a high efficiency neutron detector using a scintillator medium coupled with fiber optic light guides. The light guides provide light pulses to photo sensor and thereby to high speed analog to digital conversion and digital electronics that perform digital pulse shape discrimination for near zero gamma cross talk. Optionally, microwave curing techniques are used for fabricating a high performance neutron detector with high reliability and homogenous distribution of the particles encapsulated in a polymer to produce a high performance neutron detector.
84 Citations
29 Claims
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1. A method of fabrication for a neutron detector comprising one or more scintillation detector layers in a modular configuration, the method comprising:
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a. mixing 6LiF with a binder medium with a scintillator material; b. forming one or more active scintillation layers with slots that run lengthwise across each active scintillation layer, each layer having a top piece and a bottom piece that have matching peaks and valleys such that when the peaks and valleys of the two pieces face each other and the two pieces abut each other, grooves are formed at the matching valleys to hold in the grooves one or more fiber optic light media surrounded by scintillator material; and c. positioning one or more fiber optic light media in the grooves, such that the fiber optic light media are optically coupled with adjacent scintillation material of the one or more active scintillation layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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- 25. A method of fabrication of a thermal neutron detector, wherein one or more microwave curing techniques are used to cure a binder comprising a polymer to create a homogenous distribution of encapsulated particles within the binder for the neutron detector.
Specification