Variable-ratio neutron-gamma ray source

Details Variable-ratio neutron-gamma ray source Variable-ratio neutron-gamma ray source

2007-09-12

2009-11-24

Souw, Bernard E (Department: 2881)

Radiant energy

Electrically neutral molecular or atomic beam devices and...

C250S269300, C250S496100, C250S493100, C250S494100, C250S370090, C250S269100, C250S269600, C376S157000, C376S158000

Reexamination Certificate

active

07622709

ABSTRACT:
A variable-ratio neutron-gamma ray source comprises a neutron generator, a shield, a collimator, and an external gamma target. The neutron generator generates neutrons and the shield reduces external radiation exposure. The collimator collimates the neutrons into a neutron beam that traverses the shield. The external gamma target generates a dual neutron-gamma ray beam from the neutron beam, wherein the dual neutron-gamma ray beam has a variable neutron-gamma ratio as a function of a thickness of the external gamma target.

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