Accession Number : ADA995420

Title :   OPERATION GREENHOUSE. Scientific Director's Report of Atomic Weapon Tests at Eniwetok, 1951. Annex 1.2. Delayed Gamma-Ray Measurements. Part 4. Measurements udner Collimated Conditions,

Corporate Author : ROCHESTER UNIV NY

Personal Author(s) : Cavanagh,Philips J. ; Gibson,Harold F. ; Kirn,Frederick S. ; Miller,William ; Wyckoff,Harold O.

Report Date : MAR 1952

Pagination or Media Count : 56

Abstract : The primary purpose of the spatial measurements was to gain data from which the distribution of fission fragments as a function of time could be computed. Since it was considered that the previous Sandstone tests did not include enough sample points in space to provide more than a very rough idea of the distribution of fission fragments with time, it was decided, to provide more collimators, detectors with a faster response, a recorder with better time resolution, and more protection for the detectors. The radial motion of the fission fragments was expected to be available directly from the measured times of arrival of the source at the field of view of each detector.

Descriptors :   *GAMMA RAYS, *NUCLEAR EXPLOSION TESTING, RADIATION MEASURING INSTRUMENTS, FISSION PRODUCTS, SPATIAL DISTRIBUTION, COLLIMATORS, CALIBRATION, ENEWETOK ATOLL, ERROR ANALYSIS

Subject Categories : Nuclear Instrumentation
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE