A concept of the photon collider beam dump
Abstract
Photon beams at photon colliders are very narrow, powerful (10-15 MW) and cannot be spread by fast magnets (because photons are neutral). No material can withstand such energy density. For the ILC-based photon collider, we suggest using a 150 m long, pressurized (P ~ 4 atm) argon gas target in front of a water absorber which solves the overheating and mechanical stress problems. The neutron background at the interaction point is estimated and additionally suppressed using a 20 m long hydrogen gas target in front of the argon.
- Publication:
-
Journal of Instrumentation
- Pub Date:
- September 2014
- DOI:
- 10.1088/1748-0221/9/09/C09031
- arXiv:
- arXiv:1409.5586
- Bibcode:
- 2014JInst...9C9031S
- Keywords:
-
- Physics - Accelerator Physics;
- High Energy Physics - Experiment;
- Physics - Instrumentation and Detectors
- E-Print:
- 9 pages, 7 figures, Latex. Talk at Int. conf. on instrumentation for colliding beam physics (INSTR 2014), Feb. 24 - March 1, 2014, BINP, Novosibirsk. To be published in JINST