Lischinsky J, Vigliani M A, Allard D J
Applied Consultants, Inc., Woburn, MA 01801.
Health Phys. 1991 Jun;60(6):859-62. doi: 10.1097/00004032-199106000-00009.
Recent work involving the decommissioning of a former ceramic manufacturing facility licensed by the Nuclear Regulatory Commission for activities involving depleted uranium oxide has uncovered the presence of unexpected high levels of natural radioactivity in non-licensed zirconium oxide powders also used in the same facility. A comparison between the levels of source material found in samples of this material and the current regulatory guidance for licensed activities and decommissioning has been conducted. It has been determined that the radioactivity in the zirconium oxide is of a high enough magnitude to raise health physics concerns in the areas of licensing and regulatory compliance, decontamination criteria, and worker health and safety. An examination of these areas has been conducted and the implications associated with our findings are presented.
最近，一项涉及拆除由核管理委员会许可的、曾进行过涉及贫化氧化铀活动的陶瓷制造设施的工作，发现同一设施中使用的未经许可的氧化锆粉末中存在意外的高天然放射性水平。已对该材料样本中发现的源材料水平与当前许可活动和退役的监管指南进行了比较。已确定氧化锆中的放射性强度足以引发在许可和法规合规、去污标准以及工人健康与安全等方面的健康物理学问题。已对这些领域进行了审查，并阐述了与我们的发现相关的影响。
