Scintillation luminescence for high-pressure xenon gas
Scintillation luminescence for high-pressure xenon gas
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DOI：
10.1016/j.nima.2004.06.024
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发表时间：
2004-09
影响因子：
1.4
通讯作者：
S. Kobayashi;N. Hasebe;T. Igarashi;M. Kobayashi;T. Miyachi;M. Miyajima;H. Okada;O. Okudaira;C. Tezuka;E. Yokoyama;T. Doke;E. Shibamura;V. Dmitrenko;S. Ulin;K. Vlasik
中科院分区：
文献类型：
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作者：
S. Kobayashi;N. Hasebe;T. Igarashi;M. Kobayashi;T. Miyachi;M. Miyajima;H. Okada;O. Okudaira;C. Tezuka;E. Yokoyama;T. Doke;E. Shibamura;V. Dmitrenko;S. Ulin;K. Vlasik
测量了5.49MeV α粒子在氙气中的闪烁和电离产额，测量范围为0.35 - 3.7MPa，电场强度（E）与氙原子数密度（N）之比，E/N为0 - 5×10− 18 Vcm 2。当我们的数据在Saito等人测量的数据点上标准化时，在2.6MPa和3.7×10 - 18 Vcm 2下，闪烁光子数为2.3 × 105，电离电子数为2.0× 105。测量了掺0.2%氢的高压氙气[H_2 -0.2%]在2.6MPa下的闪烁和电离产额。Xe-H_2混合气体的闪烁产额是纯氙的80%。结果表明，该闪烁产额足以产生高压氙时间投影室的触发脉冲，有望成为MeV级康普顿γ射线相机。
Scintillation and ionization yields in xenon gas for 5.49MeV alpha-particles were measured in the range of pressure from 0.35 to 3.7MPa and the electric field strength (E) over the number density of xenon atoms (N), E/N from 0 to 5×10−18Vcm2. When our data are normalized at the data point measured by Saito et al., the number of scintillation photons is 2.3×105while the number of ionization electrons is 2.0×105at 2.6MPa and at 3.7×10−18Vcm2. The scintillation and ionization yields of xenon doped with 0.2% hydrogen, High-Pressure Xenon gas[H2-0.2%], at 2.6MPa was also measured. Scintillation yield of the Xe–H2mixture gas is 80% as high as that of pure xenon. It is found that the scintillation yield is luminous enough to generate a trigger pulse of the high-pressure xenon time projection chamber, which is expected as a promising MeV Compton gamma-ray camera.