Speaker
Description
Scintillation light recording is a versatile readout approach for MPGDs which exploits the high granularity of pixelated imaging sensors and can provide additional feedback for beam monitoring applications.
As an alternative to wirechamber-based beam profile and position monitoring, we report on the readout of GEM-based detectors using CMOS- and CCD cameras.
This approach enables semi-online readout of beam parameters for fast feedback and can offer novel live beam profiling.
In this work, we present the progress and results achieved during testbeams with different particles, intensities and conditions, covering muon-, pion- and proton beams as well as electron-flash conditions.
During this period, a secondary detector has been built to supplement the main vacuum-chamber based one, focusing on the reduction of primary scintillation and reflexions within the chamber to optimise for high-intensity beams.
The utilization of a high-speed camera alongside a slow camera allows detection of single ionisation events and building a beam profile from those, as well as long exposition over the spill time which provides an integrated beam profile.
Upcoming studies include further tuning of the detector and camera in muon and pion beams as well as exploration of different image transmission methods for high-radiation environments, allowing for more flexible placement of sensitive readout devices.
Further testbeam campaigns are also planned, both within CERN and external to gather more information about the detectors response to already tested particles and conditions as well as new ones where the focus will lie on flash conditions.
The results demonstrate the viability of optical readout for beam profiling for various beam conditions and type of ionising particles.
| Name of the speaker | Bernd Schoenfelder |
|---|---|
| Eligible for the Georges Charpak Young Scientist Award. | yes |