检验检疫学刊
檢驗檢疫學刊
검험검역학간
INSPECTION AND QUARANTINE SCIENCE
2015年
2期
38-40
,共3页
放射性平衡%活度浓度%观测量
放射性平衡%活度濃度%觀測量
방사성평형%활도농도%관측량
E quilibrium of R adioactive Series%Specific A ctivity%D etections
推导建立了一种相对简易的磷肥中铀系放射性核素活度浓度检测方法。根据所采用的观测量不同，方法细分为3种。选择第3种方法进行实验测算，利用基于G-M 计数管的Inspector A lert放射性探测器，在密闭环境对0.0642 g磷肥样品进行α射线探测，并最终推算得出在最不利情况下，226R a的活度浓度为0.2293 Bq/g，238U 的活度浓度为0.4586 Bq/g。
推導建立瞭一種相對簡易的燐肥中鈾繫放射性覈素活度濃度檢測方法。根據所採用的觀測量不同，方法細分為3種。選擇第3種方法進行實驗測算，利用基于G-M 計數管的Inspector A lert放射性探測器，在密閉環境對0.0642 g燐肥樣品進行α射線探測，併最終推算得齣在最不利情況下，226R a的活度濃度為0.2293 Bq/g，238U 的活度濃度為0.4586 Bq/g。
추도건립료일충상대간역적린비중유계방사성핵소활도농도검측방법。근거소채용적관측량불동，방법세분위3충。선택제3충방법진행실험측산，이용기우G-M 계수관적Inspector A lert방사성탐측기，재밀폐배경대0.0642 g린비양품진행α사선탐측，병최종추산득출재최불리정황하，226R a적활도농도위0.2293 Bq/g，238U 적활도농도위0.4586 Bq/g。
Deduced and introduced a relative easy method for m easurem ent of uranium-series specific activity in phosphate fertilizer. By using different detections, the method is differentiated in three branches. Experim ent was only designed to validate the third method, an IN SPEC TO RALERT detector based on G-M tube was used, and the alpha-ray from 0.0642g phosphate fertilizer sam ple was detected in the closed condition. After calculating according to the detections obtained, the specific activity of 226Ra is less than 0.2293 Bq/g,and of 238U is less than 0.4586 Bq/g.
