Abstract:As the standard of the absorbed dose, graphite calorimeter demands high recurrence rate. Analysis shows the performance of the graphite calorimeter system of NIM, the measurement of electric energy (power), the conversion relation between electric energy and radiation energy, and the measurement of the value of the absorbed dose reproduction. Related technical index was explained, meanwhile, it's stability was given. In order to test the measurement of the standard, specific heat capacity was measured. The measurement results was complared with BIMP's results, deviation is less than 0.1%.
[1]牛明忠, 武全德. 吸收剂量石墨量热计[J]. 计量学报, 1987, 8(3): 187-193.
[2]史可勤, 刘德成 ,张寿宁. 吸收剂量标准装置——石墨量热计[J]. 计量学报,1988, 9(2):133- 139.
[3]韩奎初. 测量γ射线和电子吸收剂量的量热计[J]. 核标准计量与质量, 1997,(1):17-22.
[4]王培玮. 绝对测量60Co γ射线吸收剂量的石墨量热计[J]. 计量学报, 2007,28(3A):305-311.
[5]Daures J, Ostrowsky A. The construction of the graphite calorimeter GR9 at LNE-LNHB[R]. CEA-R-6184. Saclay:CEA, 2008:1-52.
[6]Picard S, Burns D T, Roger P. Construction of an absorbed dose graphite calorimeter [R/OL]. BIPM-09/01. Pavillon de Breteuil:BIPM, 2009:1-13.http://www.bipm.org/utils/common/pdf/rapportBIPM/2009/01.pdf.
[7]Picard S, Burns D T, Roger P. Measurement of the specific heat capacity of graphite[R/OL]. BIPM-2006/01. Pavillon de Breteuil , France:BIPM, 2006: 1-31.http://www.bipm.org/utils/common/pdf/rapport BIPM/2006/01.pdf