APPENDIX I STANDARD OPERATING PROCEDURE FOR LOW-ORDER DETONATION 1.1 PRIMARY HAZARDS INVOLVED HE Only: An internal hazard due to the possibility of inhalation or ingestion cf alpha emitters (Pu"**, u?, u*) and/or tritium, which {s a soft beta emitter, will exist. There would be no external hazard from beta or gamma. HE Plus Low-order Nuclear Detonation: An internal hazard will exist as described above. In addition, an external hazard would exist from beta and gamma radiation. The extent of the external hazard would be dependent on how far the fission reaction had progressed, 1.2 RESPONSIBILITY FOR REENTRY The decision to reenter is the responsibility of CTG 132.1; no personnel will enter without his approval, 18 RAD-SAFS SURVEY Upen notificaucn from the CTG 132.1 of the decision to reenter, CTU 7 will take the following action. A survey team composed of three control monitors will approach the compound for a gross survey; the survey will consist in gathering the following information: 1, One monitor will be equipped to determine the extent of the external hazard from beta and gamma radiation, 2. One monitor will be equipped to determine the extent of the internal hazard from alpha contamination. $3. The third monitor will have special equipment available to determine the hazard due to tritium. Upon completion of the survey, the CTU 7 will advise the CTG 132.1 of the radiological ERtapeame tet iin hazards existing aud the precautions to be taken. 1.4 PROTECTIVE CLOTHING AND EQUIPMENT All personnel entering the area will wear full protective clothing and equipment, including respiratory equipment. On initial entry and until the extent of the hazard is determined, supplied air type respirators are desirable. 92 .