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Accession Number:
AD0489013
Title:
DEVELOPMENTAL STUDIES AND RELIABILITY CONTROL IN NUCLEAR TECHNIQUES FOR RADIATION-EFFECTS ENVIRONMENTAL TESTING.
Corporate Author:
GENERAL DYNAMICS FORT WORTH TX NUCLEAR AEROSPACE RESEARCH FACILITY
Report Date:
1966-08-01
Abstract:
Results of a study program are presented on the use of passive neutron and gamma detectors foils and dosimeters in radiation-effects fields at extreme nonnuclear environments. Information is given on the preparation and use of high-temperature-resistant detectors 1 calcium sulfate pellets for fast-neutron detection and 2 calcium phosphate pellets and cadmium oxide shields for thermal-neutron detection. The advantages of using resonance neutron detectors in association with fast-neutron detectors to identify variations in neutron spectral energy are demonstrated by the presentation of relative activation data for 14 reactions in nine typical radiation-effects environments. Counting-efficiency procedures and results for resonance neutron detectors are given for proportional beta-counting of activated foils. Favorable results of integrated-fast-flux measurements using nickel, sulfur, and aluminum detectors are given by comparing similar data. Some of the limitations of the gamma detectors - cobalt glass, tetrachloroethylene, and nitrous oxide - are noted, along with emphasis on the need for parametric investigations, e.g., temperature dependence.
Descriptive Note:
Technical rept. 1 Oct 64-30 Sep 65,
Pages:
0054
Contract Number:
AF 29(601)-6643
File Size:
0.00MB
