EB '~ I to Annex N sal Safety, CJTF SEVEN Operation Plan No. 3-53 TOLOGICAL SAFETY’ RECULA 1. General a. ‘Radiological Defense (RadDefense) cperations or Radiological Safety (RadSafe) operations, short term RadOps, are general terzs. They are used to dencte the means by which a unit can control and confine the damage and radiological effects of an atomic explosion or of radicactive material spread by other means, thereby preventing and avoiding health hasards to personnel. They are interpreted to include measures such as training, organization, distribution of radiological personnel, development of techniques and procedures, use of detecting equipment, Protection or removal of exposed personnel and decontamination of personnel, structures and equipment. b. Following each detonation there will be aress of surface radiological contamination and areas of air radiolegical contamination. These areas are designated as Radiological Exclusion Areas (RADEX). Prior to shot times, the forecast air and surface RADEX will be disseninated by CJTF SEVEN in the target area. These RBADEXES will represent a forecast from H Hour until dissemination of a later surface and air RADEX at about H plus & hours. The later RADEXES will be based upon the master radiological "situation map" maintained in the RadSafe Office of CJTP SEVEN. Since the air RADEZ after shot times will be based on aonitored tracking by aircraft over significant large ccean areas, information proumlgated from the forecast: air RADEX may have to be extended beyond the originally anticipated & hour pericd. c. The surface RADEX will be determined by actual survey with Radiation Detection, Indication and Computation (RADIAC) equipment after shot time. The most rapid method of accomplishing surface survey in the early stages will be by helicopter flight in and aroum the surface of contaminated areas. From the radiation intensities measured at a known altitude, it is possible to obtain an estimate of the radiation dosage rates which would be encountered on the surface of the ground or water. Actual water samples from the lagoce will alec be utilised. Ground survey will follow these guides to determine definitely the contaminated regions and objects. PForsal ground survey of the shot atoll, as feasible, will be accomplished on HW plus-24 hours. _ 2. The Maximm Permissible Exposures (MPEs) and Maximum Permissible Timits (MPLe) as stated herein are applicable to a field experimen- tal test of nuclear devices in peacetime wherein numbers of persconnel engaged in these tests have been previously exposed or will be continuously exposed to potential radiation hasards. It may become necessary from a study of personnel records to reduce the MPE for certain individuals who have recently been cver-exposed to radiation. Further, the MPEs and MPLs are subject to revision by waiver froa the task force coumander in individually designated cases when circumstances indicate the need and justification therefor. 3. Due to the special nature of field tests it is considered that a policy of strict adherence tothe radiological standards prescribed c Neiet—