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首页> 外文期刊>Plasma physics and controlled fusion >Bright muon source driven by GeV electron beams from a compact laser wakefield accelerator
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Bright muon source driven by GeV electron beams from a compact laser wakefield accelerator

机译：由GEV电子束驱动的明亮μS来自紧凑型激光韦克菲尔德加速器

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摘要

We report here a systematic quantitative study on the generation and characteristics of an active muon source driven by the interaction of an electron beam within the energy range of 1-10 GeV from laser wakefield acceleration (LWFA) with a tungsten target, using Monte Carlo simulations. The 10 GeV electron beam, achievable in the near future, from LWFA using femtosecond multi-PW lasers is employed to drive the bright source of muon pairs in a compact setup. We show that a highly directional and intense source of short-pulsed GeV muon pairs (mu(-)mu(+)) have a peak brightness of 5 x 10(17) pairs s(-1) cm(-2) sr(-1) and sub-100 ps duration could be produced using a quasi-monoenergetic 10 fs, 10 GeV electron bunch with a 1-mrad divergence and 100 pC charge. The muon pairs are emitted from a point-like source with a well-defined position and timing; the source has a size and geometric emittance of about 1 mm and 40 mu m, respectively. Such muon sources can greatly benefit applications in muon radiography as well as studies on anomalous dipole moments, rare decays of muons, neutrino oscillations, and an injector for a future compact muon collider.
机译：我们在此报告了通过Monte Carlo仿真从激光韦克菲尔德（LWFA）在1-10 GEV的能量范围内由电子束在1-10 GEV中的相互作用驱动的活性μON源的产生和特性进行了系统的定量研究。 。在不久的将来，从LWFA使用FemtoSecond Multi-PW激光器可实现的10个GEV电子束可用于在紧凑的设置中驱动muOn对的明亮源。我们表明，短脉冲GEVμ子对（MU（ - ）MU（+））的高度方向和强源具有5×10（17）对S（-1）CM（-2）SR（ -1）和Sub-100 PS持续时间可以使用Quasi-Monoenergetic 10 FS，10 GEV电子束具有1-Mrad发散和100个PC充电。 MuON对从点状源发射，具有明确定义的位置和定时;源分别具有约1mm和40μm的尺寸和几何辐射率。这种μ子源可以极大地利用Muon射线照相的应用以及对异常偶极矩的研究，稀有衰减的μONs，中微子振荡和未来紧凑型μ子撞机的注射器。

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