16mm film combined catalog (1972)

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SAFETY. WASTE DISPOSAL, AND MONITORING 69 THE SL-1 ACCIDENT, PHASES 1 AND 2 (1962). 40 minutes, color. Produced for the USAEC's Idaho Operations Office by John Feierbacher. For sale (with prior authorization from the Audio- Visual Branch, Division of Public Information, USAEC) by Byron Motion Pictures, at $113.14 (from the internegative) per print, including shipping case, F.O.B. Washington. Available for loan (free) from USAEC headquarters and field libraries. NOT cleared for television, except with the express permission of the USAEC. This semitechnical film on the SL-1 accident at the National Reactor Testing Station, Idaho, was produced primarily for nuclear industry and other technical, semitechnical, and educated lay-level groups interested in the Commission's work of studying and improving the methods and techniques of handling nuclear emergencies. A combina- tion of actual and reenacted scenes, the film presents a concise resume of what happened and how the USAEC and its operating contractors reacted to the situation, i.e., the activities associated with Phases 1 and 2 of the postaccident operations. (Phase 1 involved the location, rescue, and recovery of the three personnel and the determination of how much contamination had been released to the environment. Phase 2 involved determining whether the reactor was nuclearly safe.) Infor- mation on Phase 1 includes the type of small nuclear-power plant; training of military-reactor crews; search of the building by health physicists and observation of radiation levels and wreckage; location, rescue, and recovery of the three casualties; protective clothing and equipment and decontamination procedures for rescue teams; en- vironmental monitoring by aircraft, radio-controlled air-sampling stations, film badges, radiation-detector readings, etc.; and collection and radiochemical analysis of materials. Phase 2 activities include the use of remote-controlled motion-picture and closed-circuit television cameras to study the reactor (reactor head, nozzles, core, control-rod shrouds, control-rod extensions and blades, fuel elements, central control rod, etc.). The reactor was found to be nuclearly safe so long as nothing was done to change its unmoderated condition. Radio- chemical-activation analyses determined the nuclear-criticality origin and -energy release of the explosion, decontamination of surrounding roads, and confirmation that the accident had little or no adverse effect on the environment outside the immediate reactor area. At no time was there any serious hazard to people and animals, even in the close vicinity of the SL-1 site. Results of the investigation of the accident indicate a need for readily available high- range survey instruments, careful use of health physicists, preplanning, etc.; in addition, im- portant information on reactor technology and the administrative procedures governing reactor development has resulted. Brief in- formation is given on the start of Phase 3 work, involving the de-