OMB OPLAN Office of Management and Budget. Operations Plan. An operations plan is standard within DOD to provide specific guidance for conducting an approved major project. See CONPLAN. ORNL Oak Ridge National Laboratory, Oak Ridge, TN. PACE Pacific Cratering Experiments. Project included removal of soil down to coral rock in an area of 19 acres on the island of Sally. PASO Pacific Area Support Office (of DOE/NV), Honolulu, Hawaii. pCi Picocurie. 1 x 107!2 Curies. pCi/g Picocuries per gram. PHA Pulse Height Analyzer. PGT Princeton Gamma Tech, manufacturer of HPGe gamma ray detectors. PIMM Portable Instrument Maintenance Manual. PLOWX Plowing Experiment(site on Janet). PM Photomultiplier (tube). PMEL Precision Measurement Equipment Laboratory (electronics technician). PNL Battelle - Pacific Northwest Laboratory. Plutonium. Specifically, the isotopes 238pu, 239py, and 240pu, Context may imply the sum of these Pu isotopes. QA Quality Assurance. Qc Quality Control. & Roentgen. A unit of exposure to ionizing radiation. It is that amount of gamma or X rays required to produce ions carrying | electrostatic unit of electrical charge in one. cubic centimeter of dry air under standard conditions. rad Radiation absorbed dose. The basic unit of absorbed dose of ionizing radiation. One tad is equal to the absorption of 100 ergs of radiation energy per gram of matter. RADCON Radiation ControL RADLAB Radiation Laboratory. (Complex of trailers in which a radiation laboratory was established and used by DOE and ERSP contractors at EA.) RCC Radiation Control Committee (of the JTG). REECO Reynolds Electrical and Engineering Company, Inc., operating contractor for the DOE at NTS. rem A special unit of dose equivalent. The dose equivalent in rems is numerically equal to the absorbed dose in rads multiplied by the quality factor, the distribution factor, and any other necessary modifying factors. xxi