A positron source using an axially oriented crystal associated to a granular amorphous converter

Get Citation
XU Cheng-Hai, Robert Chehab, Peter Sievers, Xavier Artru, Michel Chevallier, Olivier Dadoun, PEI Guo-Xi, Vladimir M and Alessandro Variola. A positron source using an axially oriented crystal associated to a granular amorphous converter[J]. Chinese Physics C, 2012, 36(9): 871-878. doi: 10.1088/1674-1137/36/9/014
XU Cheng-Hai, Robert Chehab, Peter Sievers, Xavier Artru, Michel Chevallier, Olivier Dadoun, PEI Guo-Xi, Vladimir M and Alessandro Variola. A positron source using an axially oriented crystal associated to a granular amorphous converter[J]. Chinese Physics C, 2012, 36(9): 871-878.  doi: 10.1088/1674-1137/36/9/014 shu
Milestone
Received: 2011-12-06
Revised: 2012-01-16
Article Metric

Article Views(1464)
PDF Downloads(251)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

A positron source using an axially oriented crystal associated to a granular amorphous converter

Abstract: A non-conventional positron source using the intense γ 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-GeV electrons crossing a tungsten crystal along its <111> 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.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return