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Pion productions by proton and Helium-3 on Au197 target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon
Pion productions beam energies nucleon Nuclear Theory
2011/7/22
Based on a Relativistic Boltzmann-Uehling- Uhlenbeck transport model, proton and $^{3}$He induced reactions on $^{197}$Au target at beam energies of 2.8, 5, 10 and 16.587 GeV/nucleon are studied. It i...
We present the first results using the STAR detector from the Beam Energy Scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC). In this program, Au ion collisions at center of mass energie...
用于In-Beam TOF-PET的时间校正系统
飞行时间 湮灭 符合时间分辨 氟化钡 飞行时间正电子发射断层扫描仪
2011/8/22
设计和构建了用于In-Beam TOF-PET时间校正的定时系统。该系统是由1对BaF2( 40 mm× 45 mm)晶体耦合到光电倍增管XP2020Q和标准核电子学插件构成。经测试，系统对511 keV γ射线测量的最佳符合时间分辨达576 ps。对光电倍增管、信号读取方式、定时放大器以及甄别器等对该定时系统时间分辨的影响进行了测试分析。结果表明：从光电倍增管打拿级引出信号的读取模式的系统分辨...