Scintillation light increase of carbontetrafluoride gas at low temperature
Scintillation light increase of carbontetrafluoride gas at low temperature
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DOI：
10.1088/1748-0221/16/12/p12033
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发表时间：
2021-08
影响因子：
1.3
通讯作者：
K. Mizukoshi;T. Maeda;Y. Nakano;S. Higashino;K. Miuchi
中科院分区：
文献类型：
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作者：
K. Mizukoshi;T. Maeda;Y. Nakano;S. Higashino;K. Miuchi
闪烁探测器在粒子物理领域中被广泛应用于粒子探测。已知含有氟-19（19 F）的粒子探测器对于弱相互作用大质量粒子（WIMPs）暗物质搜索具有优势，特别是由于其自旋结构而与WIMPs的自旋相关相互作用。在这项研究中，四氟化碳（CF 4）气体在低温下的闪烁性能进行了评估，因为它的光产额的温度依赖性还没有被测量。我们通过将气体从室温（300 K）冷却到263 K来评估光产额。结果表明，CF_4的光产额增加了（41.0 ± 4.0 stat.± 6.6系统）%并且发现能量分辨率在低温下也得到改善。
Scintillation detector is widely used for the particle detection in the field of particle physics. Particle detectors containing fluorine-19 (19F) are known to have advantages for Weakly Interacting Massive Particles (WIMPs) dark matter search, especially for spin-dependent interactions with WIMPs due to its spin structure. In this study, the scintillation properties of carbontetrafluoride (CF4) gas at low temperature were evaluated because its temperature dependence of light yield has not been measured. We evaluated the light yield by cooling the gas from room temperature (300 K) to 263 K. As a result, the light yield of CF4 was found to increase by (41.0 ± 4.0stat. ± 6.6syst.)% and the energy resolution was also found to improve at low temperature.