Particle production of a graphite target system for the intensity frontier [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 621.36 Optical engineering
• Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2015
• Mô tả vật lý: Size: 5 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 268224
• Chủ đề: 1. 43 particle accelerators; 2. Graphite; 3. Particle production; 4. Proton beams; 5. Targets

Tóm tắt

A solid graphite target system is considered for an intense muon and/or neutrino source in support of physics at the intensity frontier. We previously optimized the geometric parameters of the beam and target to maximize particle production at low energies by incoming protons with kinetic energy of 6.75 GeV and an rms geometric emittance of 5 mm-mrad using the MARS15(2014) code. In this study, we ran MARS15 with ROOT-based geometry and also considered a mercury-jet target as an upgrade option. The optimization was extended to focused proton beams with transverse emittances from 5 to 50 mm-mrad, showing that the particle production decreases slowly with increasing emittance. We also studied beam-dump configurations to suppress the rate of undesirable high-energy secondary particles in the beam.