Title :
On possible use of bent crystal to improve Tevatron beam scraping
Author :
Biryukov, V.M. ; Drozhdin, A.I. ; Mokhov, N.V.
Author_Institution :
Inst. for High Energy Phys., Protvino, Russia
Abstract :
A possibility to improve the Tevatron beam halo scraping using a bent channeling crystal instead of a thin scattering primary collimator is studied. To evaluate the efficiency of the system, realistic simulations have been performed using the CATCH and STRUCT Monte Carlo codes. It is shown that the scraping efficiency can be increased and the accelerator-related backgrounds in the CDF and DØ collider detectors can be reduced by about one order of magnitude. Results on scraping efficiency versus thickness of amorphous layer of the crystal, crystal alignment and its length are presented
Keywords :
Monte Carlo methods; beam handling equipment; channelling; colliding beam accelerators; high energy physics instrumentation computing; proton accelerators; synchrotrons; CATCH Monte Carlo code; STRUCT Monte Carlo code; Tevatron beam scraping improvement; beam halo scraping; bent channeling crystal; Amorphous materials; Colliding beam accelerators; Colliding beam devices; Collimators; Optical losses; Optical scattering; Particle beams; Protons; Silicon; Solid scintillation detectors;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.795506
