CAJ | 학술논문

建立了通过制备大气颗粒物中碘样品并采用加速器质谱（AMS）测量颗粒物样品中129I浓度的方法。采用此方法对日本福岛核电站泄漏事故期间北京大气颗粒物样品进行了129I测量，以此探讨129I在环境监测中的作用。北京地区大气颗粒物129I的测量结果显示，2011年3月26日的大气颗粒物中129I浓度已高于正常本底值的数倍，据推测这部分129I来源于福岛核电站泄漏事故。129I是重要的核裂变产物，其来源具有特殊性，较长的半衰期使其在核反应堆中长期积累，核泄漏早期存在区域环境高浓度129I现象，所以129I-AMS测量在辐射安全及应急监测方面具有潜在优势。
건립료통과제비대기과립물중전양품병채용가속기질보（AMS）측량과립물양품중129I농도적방법。채용차방법대일본복도핵전참설루사고기간북경대기과립물양품진행료129I측량，이차탐토129I재배경감측중적작용。북경지구대기과립물129I적측량결과현시，2011년3월26일적대기과립물중129I농도이고우정상본저치적수배，거추측저부분129I래원우복도핵전참설루사고。129I시중요적핵렬변산물，기래원구유특수성，교장적반쇠기사기재핵반응퇴중장기적루，핵설루조기존재구역배경고농도129I현상，소이129I-AMS측량재복사안전급응급감측방면구유잠재우세。
A method to measure the 129 I concentration in air particle samples using accel-erator mass spectrometry (AMS) was developed ,together with the preparation of AgI target of air particle .At the same time ,for the radiation monitoring use ,the measure-ment of 129I during the accident of Fukushima Nuclear Power Plant (FNPP) with the AMS facility at the China Institute of Atomic Energy (CIAE) was discussed . The results show that early on March 26 ,2011 ,129 I derived from FNPP accident had arrived and the 129 I concentration in air particle increased greatly relative to the background value .Due to the long half life of 129 I and its accumulation in the NPP ,the event of regional high 129 I concentration occurs in the early stage of the nuclear leakage ,conse-quently ,and the 129 I-AMS measurement has great potential to be applied for radiation safety and emergency monitoring .