HIGH-EFFICIENCY MULTIPASS PROTON-BEAM EXTRACTION WITH A BENT CRYSTAL AT THE SPS

Authors
ALTUNA X BUSSA MP CARBONI G DEHNING B ELSENER K FERRARI A FIDECARO G FREUND A GUINAND R GYR M HERR W KLEM J LAFFIN M LANCERI L MIKKELSEN U MOLLER SP SCANDALE W TOSELLO F UGGERHOJ E VUAGNIN G WEISSE E WEISZ S
Citation
X. Altuna et al., HIGH-EFFICIENCY MULTIPASS PROTON-BEAM EXTRACTION WITH A BENT CRYSTAL AT THE SPS, Physics letters. Section B, 357(4), 1995, pp. 671-677
Citations number
18
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
357
Issue
4
Year of publication
1995
Pages
671 - 677
Database
ISI
SICI code
0370-2693(1995)357:4<671:HMPEWA>2.0.ZU;2-P
Abstract
Recent measurements of 120 GeV proton extraction by means of a bent si licon crystal at the CERN-SPS accelerator are summarized. The existenc e of multi-pass extraction has been proven by blocking first-pass extr action: using a crystal covered with an amorphous layer, extracted bea m with high efficiency was observed, which provides a direct proof for the importance of the multi-pass mechanism. This opens new possibilit ies in the design and optimization of a bent crystal extraction scheme .