FNAL处NuMI梁的剖面监测器SEM
Profile Monitor SEM's for the NuMI Beam at FNAL
摘要：
主注入器（NuMI）项目的中微子将从FNAL主注入器中提取120 GeV的质子，每1.9秒溢出4 E13质子，溢出8.56微秒。我们设计了二次发射监测器（SEM）探测器来测量质子束流传输线上的束流轮廓和束晕。SEM？5 μ m厚的Ti箔在1？mm或0.5？mm间距条带，导致光束损失约5E-6。我们讨论的机械设计方面，预期的束流加热的计算，并在8 GeV的运输线MiniBoone在FNAL的束流测试的结果。
英文摘要：
The Neutrinos at the Main Injector (NuMI) project will extract 120 GeV protons from the FNAL Main Injector in 8.56usec spills of 4E13 protons every 1.9 sec. We have designed secondary emission monitor (SEM) detectors to measure beam profile and halo along the proton beam transport line. The SEM?s are Ti foils 5um in thickness segmented in either 1?mm or 0.5?mm pitch strips, resulting in beam loss ~5E-6. We discuss aspects of the mechanical design, calculations of expected beam heating, and results of a beam test at the 8 GeV transport line to MiniBoone at FNAL.
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