本文選題：CR固體核徑跡探測(cè)器　切入點(diǎn)：低能中子　出處：《輻射防護(hù)》2017年03期 　論文類型：期刊論文

【摘要】：本文給出了一種采用固體核徑跡探測(cè)器測(cè)量低能(0.5 e V以下能量)中子的雙片徑跡計(jì)數(shù)方法,利用蒙特卡羅模擬和實(shí)驗(yàn),統(tǒng)計(jì)分析了低能中子引起的探測(cè)器單位面積徑跡密度。結(jié)果顯示,采用雙片徑跡計(jì)數(shù)方法,實(shí)現(xiàn)了CR39對(duì)于低能中子的響應(yīng),可以對(duì)低能中子引起的個(gè)人劑量進(jìn)行估算。應(yīng)用在中子職業(yè)個(gè)人劑量監(jiān)測(cè)時(shí),有效甄別了背景徑跡的影響,因而降低了測(cè)量誤差,對(duì)減小中子個(gè)人劑量監(jiān)測(cè)的測(cè)量不確定度也是一個(gè)可行的方法。
[Abstract]:In this paper, a two-piece track counting method using solid state nuclear track detector to measure neutron with low energy below 0.5 EV is presented. Monte Carlo simulation and experiment are used. The track density per unit area caused by low energy neutrons is statistically analyzed. The results show that the response of CR39 to low energy neutrons is realized by using the dual track counting method. The personal dose caused by low-energy neutrons can be estimated. When used in neutron occupational personal dose monitoring, the influence of background tracks is effectively identified, thus reducing the measurement error. It is also a feasible method to reduce the uncertainty of individual neutron dose monitoring.
【作者單位】： 北京市化工職業(yè)病防治院;中國疾病預(yù)防控制中心輻射防護(hù)與核安全醫(yī)學(xué)所;蘭州大學(xué)核科學(xué)技術(shù)學(xué)院;
【基金】：科研院所技術(shù)開發(fā)研究專項(xiàng)基金(2012EG150137) 北京市職業(yè)病防治領(lǐng)域高層次專業(yè)技術(shù)人才培養(yǎng)項(xiàng)目(2014742603767J008)
【分類號(hào)】：R144
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本文編號(hào)：1631406