Major Descriptors: *DECONTAMINATION -- MEETINGS; *SOILS -=- DECONTAMINATION bescriptors: CONTAMINATION; LEADING ABSTRACT; NUCLEAR WEAPONS; RADIATION ACCIDENTS; TRANSURANIUM ELEMENTS Broader Terms: ABSTRACTS; ACCIDENTS; CLEANING; DOCUMENT TYPES; ELEMENTS; WHRAPONS ; <-- Environment, Terrestrial -- Radioactive Subject Categories: 510301* Materials Monitoring & Transport -- Soil ~- (-1987) 7 -- Radioactive materials monitoring & INIS Subject Categories: B3110* transport ) 10/5/622 (Item 322 from file: 01634409 BDB-85-141186 Author(s): Holden, F.R.; Worsham, M.L. Title: Skow, 103) R.K.; Owings, A.F.; Evans, E.C.; Radioactive contamination of ventilation supply system, Crittenden, from Baker Explosion, Corporate Source: (USA) Operation Crossroads. Naval Radiological Defense Lab., USS Final report San Francisco, CA Publication Date: 14 Feb 1950 p 39 Report Number(s): AD-A-995283/9/XAB; USNRDL-551 Document Type: Report Language: English Journal Announcement: ERA8508 Availability: NTIS, PC AQ3/MF AOQl. Subfile: BRA (Energy Research Abstracts). Country of Origin: United States Country of Publication: United States Abstract: Dust in the ventilation system of the after-engine room of the USS Crittenden was contaminated by the base surge from the Baker explosion at Operation Crossroads. Although all ventilation system openings on target ships were sealed prior to the Baker explosion, there was damage to the cover on the system for the after-engine room of the USS Crittenden. The damage to the cover consisted of an opening approximately six square inches in area. The dust in the contaminated ventilation system was recovered and the amount and composition of the radioactive constituents were measured. The radioactive contamination as a funciton of particle size of the dust was also determined. One and one half years after the Baker explosion, fission products equivalent to 115 microcuries of radioactivity were recovered from the dust. It was calculated from radiochemical analysis and fission product decay schemes that approximately 370 curies entered the ventilation system from the base surge. The corresponding alpha activity was 0.43 microcurie. It was also found that 18% of the dust by weight was of respirable particle sizes (less than five microns) about 160 curies of the total radioactivity. and that it carried Major Descriptors: *CROSSROADS PROJECT -- NUCLEAR EXPLOSIONS; *NUCLEAR EXPLOSIONS -- RADIOACTIVE EFFLUENTS; *SHIPS -- CONTAMINATION Descriptors: ENGINES; FISSION PRODUCTS; OPENINGS; PARTICLE SIZE; ” RESPIRATION; SURGES; VENTILATION; WEIGHT Broader Terms: EXPLOSIONS; ISOTOPES; MATERIALS; NUCLEAR EXPLOSIONS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; SIZE; WASTES Subject Categories: 450202* Weaponry -- (-1989) -- Explosions & Explosives -- Nuclear <-- 10/5/623 (Item 323 from file: 103) 01634408 EDB-85-141185 Title: Report of Project 1-M-54 on thirty service men exposed to residual radiation at Operation castle Corporate Source: Joint Task Force 132, Washington, DC (USA) Publication Date: 1 Aug 1984 p 55 Report Number(s): AD-A-995241/7/XAB co Note: Extracted version of report dated 5 Jul 54 im Document Type: Report co Language: English my Journal Announcement: ERA&8508 oo Availability: NTIS, PC A04/MF AOL co fo