wap ANALYTICAL PROGRAM — 1975 BIKINIRADIOLOGICAL SURYEY Abstract Tne analytical program for control programs, reproducibility samples of soil, vegetation, and of measurements, and comparisons animal tissue collected during the of gamma spectrometry with wet ; ; . . 24) June 1975 field survey of Bikini and Eneu islands is described. chemistry determinations of Wet chemistry results are used to The phases of this program are discussed examine differences in Pu:Am in chronological order: ratios and Pu-isotope ratios as processing of samples, trometry, Am. initial a function of the type of sample gamma spec- and wet chemistry. and Included are discussions of quality the location where samples were collected. Introduction document in the preparation of this In June 1975 a field survey was conducted on the islands of Bikini report. and Eneu within the Bikini Atoll. submitted for analysis is presented During this survey, several hundred in Table l. samples were collected to assess <A listing of the samples More than 950 samples were | the radiological status of the islands collected from Bikini and Eneu and their suitability for reinhabi- Islands during field operations. tation by the Bikini people. All samples were processed prior to Instrumental to the radiological selection for gamma spectrometry assessment was a thorough and com- and/or wet chemistry. prehensive program for the analysis samples processed, 624 were counted of collected samples. by gamma spectrometry at LLL on the Since many Of the total facets of the Bikini program were Ge(Li) similar to those employed for Biomedical and Radiochemistry Enewetak, we used the excellent Divisions. discussion of the Enewetak analytical were performed by the McClellan program by Hoff et alsas a source Central Laboratory (MCL) on 588 of J. R. W. Hoff, J. W. Meadows, H. D. Wilson, A. detector systems of L. the Wet-chemistry analyses Prindle, R. Gunnink, and K. 0. Hamby, "Analytical Program," Enewetak Radtologtecal Survey, U.S. Atomic Energy Commission, 426-485, October 1973. Nevada Operations Office, NVO-140, Vol. 1,