Accelerated radiation damage test facility using a 5 MV tandem ion accelerator
Accelerated radiation damage test facility using a 5 MV tandem ion accelerator
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使用 5 MV 串联离子加速器的加速辐射损伤测试设备
DOI:
10.1016/j.nima.2015.09.088
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Wady P
中科院分区:
文献类型:
--
作者:
Wady P
We have developed a new irradiation facility that allows to perform accelerated damage tests of nuclear reactor materials at temperatures up to 400 °C using the intense proton (<100 μA) and heavy ion (≈10 μA) beams produced by a 5 MV tandem ion accelerator. The dedicated beam line for radiation damage studies comprises: (1) beam diagnosis and focusing optical components, (2) a scanning and slit system that allows uniform irradiation of a sample area of 0.5–6 cm2, and (3) a sample stage designed to be able to monitor in-situ the sample temperature, current deposited on the sample, and the gamma spectrum of potential radio-active nuclides produced during the sample irradiation. The beam line capabilities have been tested by irradiating a 20Cr–25Ni–Nb stabilised stainless steel with a 3 MeV proton beam to a dose level of 3 dpa. The irradiation temperature was 356 °C, with a maximum range in temperature values of ±6 °C within the first 24 h of continuous irradiation. The sample stage is connected to ground through an electrometer to measure accurately the charge deposited on the sample. The charge can be integrated in hardware during irradiation, and this methodology removes uncertainties due to fluctuations in beam current. The measured gamma spectrum allowed the identification of the main radioactive nuclides produced during the proton bombardment from the lifetimes and gamma emissions. This dedicated radiation damage beam line is hosted by the Dalton Cumbrian Facility of the University of Manchester.
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DOI:
10.1016/s0168-9002(98)01115-2
发表时间:
1999
影响因子:
1.4
作者:
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1972
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1990
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1974
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1981
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