CAJ | 학술논문

在增殖剂离线产氚实验中，如何准确实时测量回路中氚浓度和形态（HTO/HT ）对于掌握产氚增殖剂氚释放行为，改进增殖剂的产氚性能非常重要。针对离线产氚回路中载气流量小、回路中气体量小以及载气为Ar等特点，基于流气式电离室原理研制了一套数字化氚浓度在线测量系统。该系统中电离室灵敏体积为50 mL ，数字化仪表可自控获取、处理及显示回路中的氚浓度。测试结果表明，在Ar气氛下，在35 V左右，电离室即进入饱和区；该系统探测下限可达3.7×107 Bq/m3，能满足离线产氚实验中氚在线监测的要求。
재증식제리선산천실험중，여하준학실시측량회로중천농도화형태（HTO/HT ）대우장악산천증식제천석방행위，개진증식제적산천성능비상중요。침대리선산천회로중재기류량소、회로중기체량소이급재기위Ar등특점，기우류기식전리실원리연제료일투수자화천농도재선측량계통。해계통중전리실령민체적위50 mL ，수자화의표가자공획취、처리급현시회로중적천농도。측시결과표명，재Ar기분하，재35 V좌우，전리실즉진입포화구；해계통탐측하한가체3.7×107 Bq/m3，능만족리선산천실험중천재선감측적요구。
It is very important to accurately measure tritium concentration and morphol-ogy for mastering tritium release behavior of tritium production breeder and improving the performance of tritium production breeder in out-of-pile tritium release experiment . According to the characteristics of small flow of carrier gas ,small quantity of gas and argon as carrier gas ,based on the ionization chamber ,the digital online tritium meas-urement system was developed .The sensitive volume of ionization chamber is 50 mL , the digital instrument can automatically obtain the tritium concentration ,at the same time ,process and display it . T he results show that the saturated zone of ionization chamber is about 35 V in argon ,and the detection limit is 3.7 × 107 Bq/m3 ,w hich is satisfactory for online tritium measurement in out-of-pile tritium release experiment .