enlisted personnel will be obtained cs needed from tho Task Force for radiological survey, 1.5.4 Maintenance end calibration of portable gamma survey instruments is to be accomplished by Task Force Rad Safe, 1.5.5 Maintenance and calibration of the directionel beta and gamma instruments end the laboratory counting equipment will be accomplished by Project 6.4f, or by USNRDL personnel or by an electronic technician from T. I, 1.5.6 Survey data will be shered with Project 6.4g so that thore will be no useless duplication of radiological surveys, 1.5.7 Photographic film will be stored and processed by the Task Force Photographic Unit, 1.6 ond 1.6.1 Same as in basic plen, 1.6.2 Same as Annex A, B, C, E, and H, 1.6.3 The gamma survey instruments (radincs) will be used 1.6.4 The directional gamma probe will be used for measuring for measuring gross gamma fields only. ments vill not detect beta radiation, gamma radiation with a 60° conc, at 30" from the surface, It is assumed thet these instru- This will be roughly o 36" circle Direct beta radistion will not be readily detected by this instrument because of the 30" working distance, and the thick window in the GM tube detector, 1.6.5 The directional bete probe will bo used for measuring only beta radiation emitted from 100 sq. centimeters directly under the probe window, Gamma radiation will be electronically cancelled from oll readings. The instrument will be held 1/4" from the contaminated surface, This instrument will only be used to measure localized con= temination on non-porous surfaces, or surfeces not covered with some material which would absorb significant amounts of bete radiation, It is assumed thet thero will be a definite ratio, at any one time, between beta and gamnec rrediation so that beta rerdings may be roughly converted to localized gamma readings. 1.6.6 gy, LOUIS ERC Removable contamination presumably constitutes a hazard to personnel even inlot: redietion fields, Therefore, wipe ee 77