裂变径迹定年中子注量的测量
THERMAL NEUTRON FLUENCE MEASUREMENT FOR FISSION TRACK DATING
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摘要: 利用钴活化箔测量绝对中子注量,对SRM962标准铀玻璃进行多次刻度,得到刻度因子B=(5.76±0.32)×10~9/径迹。用裂变径迹年龄标准样品进行检验的结果表明,利用该标准铀玻璃可以获得较准确的中子注量和定年结果。Abstract: SRM 962 standard uranium glass are calibrated against Co activation monitors in nine irradiations.The calibration factor is found to be(5.76±0.32)×10~9 neutron/track. Age standards are employed tocheck the accuracy of neutron fluence and the results show that more accurate fission track ages can bedetermined using the calibrated SRM 962 standard uranium glass.
- Keywords:
- Fission track dating ,
- Neutron fluence ,
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[1] 1 Hurford AJ, Green PF. The Zeta Age Calibration of Fission Track Dating. Isotope Geoscience, 1983, 1: 285. 2 Hurford AJ, Green PF. A User's Guide to Fission Track Dating Calibration. Earth Planet Sci Lett, 1982, 59: 343. 3 Carpenter BS, Reimer GM. Standard Reference Materials: Calibration Glass Standards for Fission Track Use, NBS Special Publication, 1974, 260. 4 曹宜铮.射线物理测量方法提要汇编.北京:原子能出版社,1974. 66. 5 本多照辛,雁泽好博,野崎徹也.裂变径迹定年热中子注量的绝对测量.地球科学,1987,41(5) :281.
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