Modeling the diffusion of muonium in silica aerogel and its application to a novel design of multi-layer target for thermal muon generation

C Zhang,T Hiraki,K Ishida,S Kamal,S Kamioka,T Mibe,A Olin,N Saito,K Suzuki,S Uetake,Y Mao

doi:10.1016/j.nima.2022.167443

Modeling the diffusion of muonium in silica aerogel and its application to a novel design of multi-layer target for thermal muon generation

C Zhang, T Hiraki + Show 9 more

https://doi.org/10.1016/j.nima.2022.167443

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Journal: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment	Publication Date: Sep 14, 2022
Citations: 1

Affiliation: Peking University, Okayama University, RIKEN Nishina Center, University of British Columbia, High Energy Accelerator Research Organization, University of Victoria, Nagoya University

#Silica Aerogel #Single-layer Design + Show 8 more

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Abstract

The generation of thermal muons by laser ionization of muonium (μ+e−) confined in multi-layer silica aerogel structures is simulated. Thermal muonium generated inside the silica aerogel is emitted into the sandwiched vacuum regions between the aerogel layers separated by a few millimeters. The model for muonium emission is validated against emission measurements from single aerogel samples. The efficiency of thermal muon generation in this configuration is predicted to increase by several times compared with a single-layer design.

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