10/5/569 01806389 Author(s): (Item 269 from file: 103) ERA~-11-041506; EDB-86-130257 Pantall, J.T.; Haskell, N.A. Title: Operation Hardtack. Project 1.10. Blast overpressure from very-high altitude bursts. Report for April-October 1958 Corporate Source: Air Force Geophysics Lab., Hanscom AFB, MA (USA) Publication Date: 31 Oct 1984 p 32 Report Number(s): AD-A-995278/9/XAB Document Type: Report Language: English Journal Announcement: EDB8606 Availability: NTIS, PC A0Q3/MF A0l. Subfile: ERA (Energy Research Abstracts). GRA (NTIS NTS) Country of Origin: United States Country of Publication: United States Abstract: The objective was the measurement of time of arrival, peak overpressure, and pressure versus time at five balloon-borne canisters suspended at various distances below a device (Shot Yucca) detonated at a very-high altitude. In order to circumvent telemetry blackout, the pressure data were to be stored on internal recorders and then played back into the telemeter transmitters, as well as telemetered directly. A power failure in the receiving station just before shot time rendered the command transmitter inoperative; recorders could not be turned on, in consequence, the canister and no delayed telemetering was possible. Direct telemetering was blacked out at the three closest canisters and the transmitter in the fourth had not responded to the turn-on command signal before power failure occurred, but a direct telemetering signal was received from the most-distant canister. An apparent pressure signal was recorded, but the wave form was abnormal, and the time of arrival and peak overpressure appeared to be mutually inconsistent. It is believed that the signal was spurious and may have been produced by damage to the canister. About 0.3 second after the arrival of the questionable pressure signature, the radio-frequency carrier from this canister was lost, and no further data were obtained. It is possible that the loss of signal represents the actual shock-arrival time. Major Descriptors: *ATMOSPHERIC EXPLOSIONS -- PRESSURE MEASUREMENT; *HARDTACK PROJECT -- NUCLEAR EXPLOSIONS; *NUCLEAR EXPLOSIONS -ATMOSPHERIC EXPLOSIONS Descriptors: ALTITUDE; Broader Terms: WAVE FORMS EXPLOSIONS; Subject Categories: 450202* Weaponry -- (-1989) NUCLEAR EXPLOSIONS -- Explosions & Explosives -- Nuclear -- 10/5/570 (Item 270 from file: 103) 01806377 BRA-11-041494; EDB-86-130245 Author(s): Thomas, C.; Goetz, J.; Klemm, J.; Weitz, R. Title: Analysis of radiation exposure for Naval personnel at Operation Castle. Technical report, 1 January 1983-31 January 1984 Corporate Source: Science Applications International Corp., McLean, VA (USA) Publication Date: Report Number(s): 28 Feb 1984 p 179 AD-A-166033/1/XAB; SAI-84/1517 Document Type: Report Language: English Journal Announcement: EDB8607 Availability: NTIS, PC AO9/MF AOl. Subfile: ERA (Energy Research Abstracts). Country of Origin: United States GRA (NTIS NTS) Country of Publication: United States Abstract: Filmtbadge doses are reconstructed for sixteen ships and the residence islands of Enewetak and Kwajalein Atolls resulting from the six nuclear detonations comprising Operation CASTLE (March-May 1954). Fallout from Shots BRAVO and ROMEO was the major source of 9003825