核电子学与探测技术
覈電子學與探測技術
핵전자학여탐측기술
NUCLEAR ELECTRONICS & DETECTION TECHNOLOGY
2014年
11期
1291-1296
,共6页
HPGe-γ谱仪%无源效率%稀土%227Ac%放射性比活度增长%理论曲线%平衡比活度
HPGe-γ譜儀%無源效率%稀土%227Ac%放射性比活度增長%理論麯線%平衡比活度
HPGe-γ보의%무원효솔%희토%227Ac%방사성비활도증장%이론곡선%평형비활도
HPGe-γray spectrometer%Sourceless efficiency calibration%Rare earth%227 Ac%Specific radioactivi-ty growth%Theoretical curve%Balance specific activity
本研究推算并验证了稀土产品中227 Ac的放射性增长理论曲线。采用HPGe－γ谱仪，通过无源效率刻度方法及适当的解谱方法，测定了高纯镧产品中227 Ac放射性比活度的增长。结果表明，第一：测得的227 Ac的放射性增长曲线与理论推算结果一致；第二：采用理论推算曲线可以准确计算出稀土产品中227 Ac的平衡比活度，达到快速检测的目的。
本研究推算併驗證瞭稀土產品中227 Ac的放射性增長理論麯線。採用HPGe－γ譜儀，通過無源效率刻度方法及適噹的解譜方法，測定瞭高純鑭產品中227 Ac放射性比活度的增長。結果錶明，第一：測得的227 Ac的放射性增長麯線與理論推算結果一緻；第二：採用理論推算麯線可以準確計算齣稀土產品中227 Ac的平衡比活度，達到快速檢測的目的。
본연구추산병험증료희토산품중227 Ac적방사성증장이론곡선。채용HPGe－γ보의，통과무원효솔각도방법급괄당적해보방법，측정료고순란산품중227 Ac방사성비활도적증장。결과표명，제일：측득적227 Ac적방사성증장곡선여이론추산결과일치；제이：채용이론추산곡선가이준학계산출희토산품중227 Ac적평형비활도，체도쾌속검측적목적。
The paper calculates and verifies the theoretical curve of the radioactivity growth of 227 Ac in rare earth products.By the application of sourceless efficiency method on HPGe-γray spectrometer, we have measured the radioactivity growth of 227 Ac in high purity lanthanum products through appropriate analysis of the spectrum. The results show that, utilizing sourceless efficiency method on HPGe-γray spectrometer, firstly, the specific radioactivity growth of 227 Ac measured is in accord with the theoretical curve calculated;secondly, it is accurate to calculate the balance specific activity of 227 Ac in rare earth products by the employ of the calculated theoreti-cal curve, and makes the rapid determination possible.
