Just for the fun of it, I googled muon production and found this at the Paul Scherrer Institute in Switzerland: https://www.psi.ch/en/media/the-sms-muon-source

Just for the fun of it, I googled muon production and found this at the Paul Scherrer Institute in Switzerland: https://www.psi.ch/en/media/the-sms-muon-source https://www.psi.ch/en/media/the-sms-muon-source It does highlight some potential pitfalls. Chiefly the rapid decay of muons and dealing decay particles. Also you need a source of high energy protons. Proton lithograhy anyone?