The Well (micro-Well) Electron Multiplier with the DLC anode—a key element of the robust and fast 2D-position sensitive MPGD
Abstract
We report the results of first studies of the small resistive Well radiation detector (https://indico.inp.nsk.su/event/20/session/9/contribution/205/material/poster/0.pdf) based on the Well Electron Multiplier with the DLC (Diamond-Like Carbon) anode. The DLC film covers the printed circuit mesh surrounding a group of holes. The prototype built with this technology provides fast, 200 ns, evacuation of electrons from the resistive layer with surface resistivity of 25 MOhm/square. As shown with 55Fe X-ray source, the detector with the mesh surrounding each hole withstands 0.5 millions discharges at the gas gain of 32,000 without damage to materials and functionality.
- Publication:
-
Journal of Instrumentation
- Pub Date:
- September 2020
- DOI:
- 10.1088/1748-0221/15/09/C09041
- Bibcode:
- 2020JInst..15C9041K