大功率靶:2 MW的经验与研发
High-power targets: experience and R&D for 2 MW
摘要:
高能粒子产生靶是未来中微子和其他稀有粒子束的关键要素。费米实验室计划用2.3兆瓦的质子束产生一束中微子(LBNE)(X项目)。任何固体目标都不可能在这样的环境中存活很长一段时间-许多材料都无法在单个光束脉冲中存活。我们正在利用我们以前的中微子和反质子生产目标的经验,以及一系列新的研发测试,设计一个目标,具有足够的生存能力,这条光束线。考虑的问题是热冲击(应力波),散热,辐射损伤,辐射加速腐蚀效应,物理/几何优化和剩余辐射。
英文摘要:
High-power particle production targets are crucial elements of future neutrino and other rare particle beams. Fermilab plans to produce a beam of neutrinos (LBNE) with a 2.3 MW proton beam (Project X). Any solid target is unlikely to survive for an extended period in such an environment - many materials would not survive a single beam pulse. We are using our experience with previous neutrino and antiproton production targets, along with a new series of R&D tests, to design a target that has adequate survivability for this beamline. The issues considered are thermal shock (stress waves), heat removal, radiation damage, radiation accelerated corrosion effects, physics/geometry optimization and residual radiation.
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