Beam monitoring detectors for High Intensity Muon Beams

We present two novel beam monitors designed for use in current PSI muon beams and upgradable for the High Intensity Muon Beam (HIMB) project beamlines: the scintillating fibre (SciFi) detector, a grid of scintillating fibres coupled to SiPMs, and the MatriX detector, a matrix of plastic scintillators coupled to silicon photomultipliers (SiPMs), both detectors having particle ID capability. The advantage of these highly segmented detectors is the capability to withstand the high beam rate and to perform total beam rate measurements. Furthermore, the use of the SiPM as a photosensor enables operation of these detectors in high magnetic field environments (up to 1.25 T). Both detectors have been tested in the beam at PSI and with continuous beam rates up to 108 mu+/s. The performance of these detectors as measured on the beamlines are presented.

Automated summary

We introduce two novel beam monitors designed for current PSI muon beams, which can be upgraded for the High Intensity Muon Beam (HIMB) project beamlines: the scintillating fibre (SciFi) detector, consisting of a grid of scintillating fibres coupled to SiPMs, and the MatriX detector, composed of a matrix of plastic scintillators coupled to SiPMs, both capable of particle identification. The segmented detectors are advantageous for withstanding high beam rates and performing total beam rate measurements. Additionally, the use of SiPM as a photosensor allows operation in high magnetic field environments (up to 1.25 T). Both detectors have been tested at PSI and have demonstrated good performance at continuous beam rates up to 108 mu+/s.