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Title: Underwater radiation detector

A detector apparatus for differentiating between gamma and neutron radiation is provided. The detector includes a pair of differentially shielded Geiger-Mueller tubes. The first tube is wrapped in silver foil and the second tube is wrapped in lead foil. Both the silver and lead foils allow the passage of gamma rays at a constant rate in a gamma ray only field. When neutrons are present, however, the silver activates and emits beta radiation that is also detected by the silver wrapped Geiger-Mueller tube while the radiation detected by the lead wrapped Geiger-Mueller tube remains constant. The amount of radiation impinging on the separate Geiger-Mueller tubes is then correlated in order to distinguish between the neutron and gamma radiations.
Authors:
 [1] ;  [1]
  1. (Albuquerque, NM)
Publication Date:
OSTI Identifier:
866017
Report Number(s):
US 4617167
DOE Contract Number:
AC04-76DP00789
Resource Type:
Patent
Research Org:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA
Country of Publication:
United States
Language:
English
Subject:
underwater; radiation; detector; detector; apparatus; differentiating; gamma; neutron; radiation; provided; detector; pair; differentially; shielded; geiger-mueller; tubes; tube; wrapped; silver; foil; tube; wrapped; lead; foil; silver; lead; foils; allow; passage; gamma; rays; constant; rate; gamma; ray; field; neutrons; silver; activates; emits; beta; radiation; detected; silver; wrapped; geiger-mueller; tube; radiation; detected; lead; wrapped; geiger-mueller; tube; remains; constant; amount; radiation; impinging; separate; geiger-mueller; tubes; correlated; distinguish; neutron; gamma; radiations; neutron radiation; detector apparatus; gamma rays; gamma ray; gamma ray; radiation detector; gamma radiation; beta radiation; radiation impinging; remains constant; radiation detected; constant rate; geiger-mueller tube; geiger-mueller tube; geiger-mueller tube; geiger-mueller tube; gamma radiations; emits beta /376/250/976/