PROGRAM 5.0 RADIOLOGICAL INSTRUMENT EVALUATION | 1. GENERAL ate, under the conditions of an This program was designed to test and evalu instruments, both surface and airborne, atomic bomb detonation, the many radiological Forces since Operation SANDSTONE and by that have been under development by the Armed the Atomie Energy Commission for civil defense purposes. 2, GROUND RADIAC EQUIPMENT a. the general Specific objectives of this portion of the program were mendations covering: evaluation of available instruments and the formulation of recom (1) Adequacy of equipment for military and civil defense applications. b. (2) Adequacy and feasibility of existing military characteristics, (3) The direction of future development, (1) Improved test methods, n Sound evaluation of radiac equipment could be achieved only at weapo ics in mixed ra~ test sites because the wide ranges of radiation intensitics and energ a diation fields which result from atomic explosions cannot be duplicated in the labor torye n The factors of intensity and energy are of primary significance in the desig and use of all types of ground radiac equipment, Nineteen types of dosimeters, six toon types of survey meters, a mobile radiological field laboratory, and three types of laundry monitors were tested. | These ineluded equipment developed by or under the sponsorship of the Army, Navy, Atomic Inergy Commission, and the National Bureau of Standards, ec, Generally, no dosimeter wes found to be ontirely adequate, of inadequacy varied among instruments, The degrec While some types were consistent in them- selves, little intercorrclation among types wus observed, It should be noted, haw ever, that certain types can be made adequate with minor changes, Over the dosage range that is of common interest to the Department of Defense, the Atomic nergy Commission, and the Federal Civil Defense Administration, via., zero to approximatel, 600 roentgens, it appears that particular types o. dosimeters are best suited for particular ranges within the stated limits, electroscopes are most feasible. Up to 50 roontgens, self-roading pocket For higher dosage ranges up to approximately 600 roentgens, solid-state (such as a color changing crystal) and liquid state (such as a7 color changing organio Liquid) are more feasible than gas interaction (such as