Intermediate-level radioactive waste (ILW) is not subject to legal approval for cave disposal in Korea. To solve this problem, a spent resin treatment device that separates ¹⁴C-containing resin from zeolite/activated carbon and desorbs ¹⁴C through a microwave device has been developed. In this study, we evaluated the radiological safety of the operators performing repair work in the event of a failure in such a device treating 1 ton of spent resin mixture per day. Based on the safety evaluation results, it is possible to formulate a design plan that can ensure the safety of workers while developing a commercialized device. When each component of the resin treatment device can be repaired from the outside, the maximum and minimum allowable repair times are calculated as 263.2 h and 27.7 h for the ¹⁴C-detached resin storage tank and zeolite/activated carbon storage tank, respectively. For at least 6 h per quarter, the worker's annual dose limit remains within 50 mSv/year; further, over 5 years, it remained within 100 mSv. At least 6 h of repair time per quarter is considered, under conservative conditions, to verify the radiological safety of the worker during repair work within that time.

在韩国，中放废物 (ILW) 在洞穴处置方面不受法律批准。^{为了解决这个问题，一种将含14} C的树脂与沸石/活性炭分离并解吸¹⁴的废树脂处理装置C透微波装置已研制成功。在这项研究中，我们评估了在这种设备每天处理 1 吨废树脂混合物发生故障时进行维修工作的操作员的放射安全性。根据安全性评估结果，可以制定能够确保工人安全的设计方案，同时开发商业化设备。当树脂处理装置的每个部件都可以从外部修复时，最大和最小允许修复时间分别计算为 263.2 h 和 27.7 h 为¹⁴分别为C-分离树脂储罐和沸石/活性炭储罐。每季度至少 6 小时，工人的年剂量限值保持在 50 毫希/年以内；此外，超过 5 年，它保持在 100 mSv 以内。在保守条件下，每季度至少考虑 6 小时的维修时间，以在该时间内验证工人在维修工作期间的放射安全。