Neutrino induced radiation at muon colliders

N. Mokhov, A. van Ginneken
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引用次数: 10

Abstract

Intense highly collimated neutrino beams are created from muon decays at high-energy muon colliders causing significant radiation problems even at very large distances from the collider ring. A newly developed weighted neutrino interaction generator permits detailed Monte Carlo simulations of the interactions of neutrinos (and of their progeny) to be performed using the MARS code. Dose distributions in a human tissue-equivalent phantom (TEP) are calculated when irradiated with neutrino beams (100 MeV-10 TeV). Results are obtained for a bare TEP, one embedded in several shielding materials and for a TEP located at various distances behind a shield. The distance from the collider ring (up to 60 km) at which recommended annual dose limits can be met is calculated for 0.5, 1, 2, 3 and 4 TeV muon colliders. The possibility to mitigate the problem via beam wobbling is investigated.
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介子对撞机的中微子诱导辐射
强烈的高度准直的中微子束是由高能介子对撞机的介子衰变产生的,即使在距离对撞机环很远的地方也会产生严重的辐射问题。新开发的加权中微子相互作用发生器允许使用MARS代码对中微子(及其后代)的相互作用进行详细的蒙特卡罗模拟。用中微子束(100 MeV-10 TeV)照射人体组织等效幻体(TEP)时,计算了剂量分布。得到了裸TEP、嵌入多种屏蔽材料的TEP和位于屏蔽后不同距离的TEP的结果。计算了0.5、1、2、3和4 TeV介子对撞机与对撞机环(最多60公里)之间可达到建议年剂量限值的距离。研究了通过光束摆动来缓解这一问题的可能性。
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