Accession Number : ADB951747

Title :   Operation TUMBLER-SNAPPER. External Neutron Measurements. Projects 17.1 and 17.2.

Descriptive Note : Rept. for Apr-Jun 52,

Corporate Author : GENERAL ELECTRIC CO SANTA BARBARA CA TEMPO

Personal Author(s) : Cowan,C. L. ; Walker,W. A.

Report Date : 01 OCT 1979

Pagination or Media Count : 53

Abstract : Operation Snapper consisted of five shots at the Nevada Proving Grounds fired in the spring of 1952 immediately following the three shots which comprised Operation Tumbler. Part 1 of this report presents the measurement of neutron flux external to the bomb made in poor geometry as functions of distance and energy with threshold detectors and as functions of time in both poor and good geometries. Descriptions of equipment and techniques are given, and the results as applied to the determination of the yield and temperature are discussed. Part 2 of the report covers the external neutron measurements which were made on the remaining four Snapper shots. These measurements utilized threshold detectors; some of the gold detectors were shielded by cadmium and cadmium-indium sandwiches, and others were unshielded samples. Measurements were obtained of neutron nvt in poor geometry as functions of indium-resonance energy, and the neutron nvt.

Descriptors :   *NUCLEAR EXPLOSION TESTING, NEUTRON FLUX, THRESHOLD EFFECTS, NEUTRON DETECTORS, AIRBURST, NEVADA

Subject Categories : Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE