Measurement Of Laser-induced Compton Backscattered Photons With Anti-compton Spectrometer
Measurement Of Laser-induced Compton Backscattered Photons With Anti-compton Spectrometer
复制标题
用反康普顿光谱仪测量激光诱导康普顿背向散射光子
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
T. Tomimasu
中科院分区：
文献类型：
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作者：
H. Ohgaki;S. Sugiyama;T. Yamazaki;T. Mikado;M. Chiwaki;K. Yamada;R. Suzuki;T. Noguchi;T. Tomimasu
在TERAS储存环上，利用激光对相对论电子的康普顿背散射产生了能量为1.6- 8.7MeV的准单色光子。用反康普顿谱仪系统测量了后向散射光子的光谱。该系统以155-cm/sup ~ 3/ a同轴型纯Ge探测器为中心探测器，以8-in φ *8-in的阱型NaI（Tl）闪烁体为外探测器。用通常的反符合技术，得到了康普顿抑制比为2-4的清晰的峰谱。光子的最大能量和能量分布与数值计算结果吻合较好。由这些数据估算了储存环中电子束的发散角和能散。>
Quasi-monochromatic photons of energies of 1.6-8.7 MeV have been generated by the Compton backscattering of laser light on relativistic electrons in the TERAS storage ring. The spectra of the backscattered photons have been measured with an anti-Compton spectrometer system. The present system has a 155-cm/sup 3/ a coaxial-type pure-Ge detector as the central detector and a well-type NaI(Tl) scintillator of 8-in phi *8-in as the outer one. With a usual anticoincidence technique, clear photopeak spectra were obtained with a Compton suppression ratio of 2-4. The maximum energy and the energy spread of photons show reasonable agreement with numerical calculations. The divergence and energy spread of the electron beam in the storage ring are estimated from the data. >