[1]赵希岳,戎红仁,李　亮,等.固体样品中60Co +95Zr 的测量方法研究[J].常州大学学报(自然科学版),2007,(04):33-36.
　ZHAO Xi -yue,Rong Ho ng -ren,Li Liang,et al.Study of Measurement of Water Sample Containing 60Co and 95Zr[J].Journal of Changzhou University(Natural Science Edition),2007,(04):33-36.
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固体样品中60Co +95Zr 的测量方法研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2007年04期
页码:
33-36
栏目:
出版日期:
2007-12-25

文章信息/Info

Title:
Study of Measurement of Water Sample Containing 60Co and 95Zr
作者:
赵希岳1 ;  戎红仁1 ;  李　亮1 ;  蔡志强1 ;  王寿祥2
1.江苏工业学院化学化工学院, 江苏 常州 213164 ;2.浙江大学农业部核农学重点开放实验室, 浙江杭州310029
Author(s):
ZHAO Xi -yue1 ;  Rong Ho ng -ren1 ;  Li Liang 1 ;  Cai Zhi -qiang1 ;  WANG Shou -x iang2
1.School of Chemistry and Chemical Engineering , Jiang su Polytechnic Universi ty , Changzho u 213164 , China ;2 .Key Laboratory of Nuclear Ag ricultural Science , the Minist ry of Ag ricultural , Zhejiang Universi ty , Hang zhou 310029 , China
关键词:
60 Co +95 Zr ; 测量方法; 校正系数; 能谱; γ射线
Keywords:
60Co +95Zr ; measurement ; calibration factor ; energy spect rum ; γ-ray
分类号:
X 591 ;X 131.3
文献标志码:
A
摘要:
采用BH1224 型多道能谱仪测量了60 Co +95 Zr 固体样品的能谱图, 确定了各自的测量道。并对其测量的重复性、样品量 和活度对测量结果的影响等进行了分析, 确定了相应的校正曲线。结果显示:①95Zr 能谱有3 个峰, 选取S 3 峰(540 ～ 680 能 谱道) 作为样品活度的测量道较为合适, 60Co 能谱有2 个峰, 选取S5 峰(1 630 ～ 1 900 能谱道) 作为样品活度的测量道较为合 适;②测量时间对测量结果没有影响;③随着样品量的增加, 同一活度样品的测量值呈下降趋势, 应进行该项目的校正, 校正 曲线60 Co 为Y 1 =1.014 6 -0.006 0X 1 , 95Zr 为Y 2 =1.008 6 -0.006 0X2 (X 1 、X 2 为测样的样品量g);④仪器死时间引起的漏 计数不容忽视, 对测量结果应进行死时间校正, 其校正系数95 Zr 为Y 3 =100.95 -0.029 4X 3 ;60C o 为Y 5 =101.56 -0.023 3X 5 ; (X 3 、X 5 为测样的计数率cps)。
Abstract:
The energy spect rumcurve of 60Co and 95Zr solid samples were measured by using BH1224 multichannel energy spect romenter , and the influence of its metrical repeatabili ty , the weight of samples and radio activity on the results was determined and analyzed , then the corresponding calibration curve was determined .The result s showed :①The energy spect rum of 95Zr had three apices ;it is suitable to select the apex of S3 (energ y spect rum path :540 -680)as the measurement path ;②The t ime of measurement had no effecton the measuring results ;③Wi th samples increasing , the measured values of the samples w ith the same radioactivity went down , which showed that the values should be calibrated .The calibration curve was as follow s :60Co was Y 1 =1.014 6 -0.006 0X1 , 95Zr w as Y 2 =1.008 6 -0.006 0X 2 (the X 1 , X 2 were the volume of the samples the unit i s g);④The leaked count s caused by the dead time should not be neg lected and the measured resul ts should be calibrated .The calibratio n factor w as as fo llow s :95Zr w as Y 3 =100.95 -0.0294X 3 ;60Co w as Y 5 =101.56 -0.023 3X 5 (the X3 , X5 were the countspersecond , the uni t i s cps).

参考文献/References:

[1] Whicker F W , Schult z V .Radioecol ogy :Nuclear en ergy and the environm ent [M] .Volum e I .Fl orida:C RC P ress , Inc, 1982 .155 .
[2] 孙志明, 陈传群, 王寿祥, 等.放射性钴在模拟水稻田中的迁 移模型[J] .生态学报, 2001 , 21 (6):938 -941 .
[3] M osulis hvi li L M , S honiya N I , Kat amadz e N M , et al.Environm ent al radi on uclide di st ribut ion in the Republic of Georgia af ter the C hern oby l catas troph e [J] .Zhu rnal Anali ti cheskoi Khimii , 1994 , 49 :1 135 ～ 1 139 .
[4] 王云, 魏复盛.土壤环境元素化学[M] .北京:中国环境科 学出版社, 1995.74 -90 .
[5] 熊毅, 陈家坊.土壤胶体-第三册:土壤胶体的性质[M] . 北京:科学出版社, 1990 .
[6] Liu L L , Shi J J , Zhao X Y , et al.Dyn amics of t ransf er and di st ribut ion of 95 Zr in the broadbean - soil ecosyst em [J] . Journal of Environment al Radioact ivit y , 2005 , 80 :217 -223 .
[7] S hi J J , Guo J F , Chen H .Dy nami cs of 95 Zr in the rice/ wat er/ soil sy stem [J] .Ap plied Radiat ion and Isot opes , 2002 , 56 :735 -740 .
[8] 史建君, 陈晖, 刘立丽.95Zr 在水-土体系中的消长动态研究 [J] .土壤学报, 2002 , 39 (6):830 -835 .
[9] 赵希岳, 史建君, 王寿祥, 等. 放射性核素60 Co 在蚕豆-土 壤系统中的迁移动力学[J] .中国环境科学, 2002 , 22 (5): 425 -428 .
[10] 陈寿椿.重要无机化学反应[M] .第三版.上海:上海科 学技术出版社, 1994.1 018 -1 036 .
[11] 谢学民, 王寿祥, 张勤争, 等.核技术农业应用[M] .上 海;上海科学技术出版社, 1989.24 -25 .

备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(39570149);江苏省环境保护厅资助项目(2003076) 作者简介:赵希岳(1965 -), 男, 江苏泰州人, 博士, 副教授, 从事生物工程、同位素示踪和放射生态学研究。
更新日期/Last Update: 2007-12-25