Optimization of an hybrid positron source using channeling

• DOI: 10.1016/j.nimb.2017.03.012
• Publication Date: 2017-03-17T12:00:17Z
• Authors: I. Chaikovska; R. Chehab; H. Guler; P. Sievers; X. Artru; M. Chevallier; T. Suwada; M. Satoh; T. Kamitani; K. Furukawa; F. Miyahara; K. Umemori; S. Jin
• Keywords: Radiator (engine cooling); Superconducting Super Collider; Crystal (programming language)

The hybrid positron source made of a crystal-radiator, as a source of channeling radiation, and an amorphous converter is briefly described. Optimization of the heating effects and thermal shocks led to a granular converter made of small tungsten spheres. Simulation results with application to two linear collider projects CLIC and ILC are presented. A test operated with this kind of source at KEK is described and the results gathered last year, reported. Plans for the future are briefly described.