INS PULL IN {oye fay fh Poet tf Lf feta Document Type: Report Language: English Journal Announcement: EDB&606 Availability: NTIS, PC A03/MF AOl. Subfile: BRA (Energy Research Abstracts). GRA (NTIS NTS) Country of Origin: United States Country of Publication: United States Abstract: The energy yield of an atomic explosion was determined at logn distance by measuring the time variation of the light from the explosion and applying an empirical formula that relates this to the energy yield. The light was detected by an RCA 5819 photomultiplier tube and was recorded on a magnetic-tape recorder. Measurements at Shot Easy were made from A C-54 airplane flying at 12,500 ft at a distance of 630 miles northwest of Eniwetok. The time to the minimum of light intensity was 23.5 + or - 0.8 msec, corresponding to a yield of 53 + or - 4 kt. The yield calculated from the radiochemical measurements was 46.8 + or - 1.0 kt. The peak intensity of the flash above the ambient was measured to be 1.7 millicandles/sq ft. This experiment indicated that energy yield can be measured at a distance greater than 630 miles at night. Possible propagation mechanisms are discussed. Studies of the maximum range in daylight and of improvements in technique are suggested. Major Descriptors: *GREENHOUSE PROJECT -- NUCLEAR EXPLOSIONS; EXPLOSIONS -- ENERGY YIELD ; Descriptors: RADIOCHEMISTRY; RECORDING SYSTEMS Broader Terms: CHEMISTRY, EXPLOSIONS; NUCLEAR EXPLOSIONS; Subject Categories: 450202* Weaponry -- (-1989) 10/5/575 01797209 Author(s): Title: *NUCLEAR YIELDS -- Explosions & Explosives -- Nuclear -- (Item 275 from file: 103) ERA~-11-038776; EDB-86-120997 Ogle, W.E. Operation Castle. Corporate Source: Operation Plan Number 1-53. Kaman Tempo, Publication Date: 31 Aug 1984 Santa Barbara, p 133 CA Task Group 7.1 (USA) Report Number(s): AD-A-995272/2/XAB Document Type: Report Language: English Journal Announcement: EDB8606 Availability: NTIS, PC AO7/MF AOl. Subfile: ERA (Energy Research Abstracts). GRA (NTIS NTS) Country of Origin: United States Country of Publication: United States Abstract: Overseas experimentation depends upon progress of construction, reliability of instrumentation and the overcoming of obstacles presented by local conditions. This Operation Plan is intended to be used as a guide for TG 7.1 personnel since it represents a record of agreements arrived at prior to its compilation. Major Descriptors: *CASTLE PROJECT EXPLOSIONS -- PLANNING -- NUCLEAR EXPLOSIONS; *NUCLEAR Descriptors: MANAGEMENT Broader Terms: EXPLOSIONS; NUCLEAR EXPLOSIONS Subject Categories: 450202* Weaponry -- 10/5/576 01797208 (-1989) -- Explosions & Explosives -- Nuclear -- (Item 276 from file: ERA-11-038775; 103) EDB-86-120996 Author(s): Olseon, M.H. Title: Operation Castle. Project 7.1. Electromagnetic radiation Calibration, Pacific )roving ground. Report for March-May 1954 Corporate Sourte: Publication Date: Report Number(s): Kaman Tempo, Santa Barbara, CA (USA) 31 Aug 1984 Document Type: Report 9003624 p 34 AD-A-995271/4/XAB