A positron source using an axially oriented crystal associated to a granular amorphous converter
文献类型：期刊论文
| 作者 | Xu Chenghai2; Chehab Robert3; Sievers Peter4; Artru Xavier5; Chevallier Michel5; Dadoun Olivier6; Pei Guoxi2; Strakhovenko Vladimir M1; Variola Alessandro6 |
| 刊名 | Chinese Physics. C
 |
| 出版日期 | 2012 |
| 卷号 | 36期号:9页码:871 |
| ISSN号 | 1674-1137 |
| 英文摘要 | A non-conventional positron source using the intense gamma radiation from an axially oriented monocrystal which materializes into e(+)e(-) pairs in a granular amorphous converter is described. The enhancement of photon radiation by multi-Gay electrons crossing a tungsten crystal along its axis is reported. The resulting enhancement of pair production in an amorphous converter placed 2 meters downstream, is also reported. Sweeping off the charged particles from the crystal by a bending magnet upstream of the converter allows a significant reduction of the deposited energy density. Substituting a granular target made of small spheres for the usual compact one, makes the energy dissipation easier. The deposited energy and corresponding heating are analyzed and solutions for cooling are proposed. The configurations studied here for this kind of positron source allow its consideration for unpolarized positrons for the ILC. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/98459]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | 1.Budker Institute of Nuclear Physics 2.中国科学院高能物理研究所 3.Institut de Physique Nucleaire de Lyon,IN2P3/CNRS et Universite Lyon 1 4.中国科学院地理科学与资源研究所 5.Institut de Physique Nucleaire de Lyon 6.法国巴黎第十一大学 |
| 推荐引用方式 GB/T 7714 | Xu Chenghai,Chehab Robert,Sievers Peter,et al. A positron source using an axially oriented crystal associated to a granular amorphous converter[J]. Chinese Physics. C,2012,36(9):871. |
| APA | Xu Chenghai.,Chehab Robert.,Sievers Peter.,Artru Xavier.,Chevallier Michel.,...&Variola Alessandro.(2012).A positron source using an axially oriented crystal associated to a granular amorphous converter.Chinese Physics. C,36(9),871. |
| MLA | Xu Chenghai,et al."A positron source using an axially oriented crystal associated to a granular amorphous converter".Chinese Physics. C 36.9(2012):871. |
入库方式： OAI收割
来源：地理科学与资源研究所
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