CAJ | 학술논문

涉氚场所中的氚浓度在线测量是保障工作安全顺利进行的有力条件。针对涉氚场所中氚主要以氚气形式存在的特点，设计并研制了一套数字化氚在线测量系统。该系统采用补正极原理设计了丝壁电离室，消除了氚在进入电离室前产生的电离离子对测量结果的影响；开发了数字化信号处理系统，可自控获取、处理及显示过程中的氚浓度。系统在氚靶生产过程中得以应用，结果表明，丝壁的设计使得电离室室壁氚吸附产生的记忆效应减小到1％以内，系统中的氚浓度能够在线实时准确测量、显示，能很好地满足涉氚场所氚在线测量的要求。
섭천장소중적천농도재선측량시보장공작안전순리진행적유력조건。침대섭천장소중천주요이천기형식존재적특점，설계병연제료일투수자화천재선측량계통。해계통채용보정겁원리설계료사벽전리실，소제료천재진입전리실전산생적전리리자대측량결과적영향；개발료수자화신호처리계통，가자공획취、처리급현시과정중적천농도。계통재천파생산과정중득이응용，결과표명，사벽적설계사득전리실실벽천흡부산생적기억효응감소도1％이내，계통중적천농도능구재선실시준학측량、현시，능흔호지만족섭천장소천재선측량적요구。
On-line tritium monitor is one of the key points for a successful operation of involving tritium places.According to the form of tritium gas,an on-line tritium monitoring system of digitization was devel-oped.The wire-wall ionization chamber was designed based on the compensation anode principle,which elimi-nated the influence of ionization ion for measurement results before the tritium entering the ionization chamber. At the same time,the digital signal processing system was developed,which can access,process and display triti-um concentration automatically.It was checked out in the tritium target preparation progress.The results indi-cate that the memory effect of the wall of the ionization chamber is reduced to less than 1%,the concentration of tritium in the system can be on-line real-time measurement.This monitor system can meet the need of on-line tritium monitor in involving tritium places.