Resolving soft X-ray absorption in energy, space and time in gaseous detectors using the VMM3a ASIC and the SRS


Scharenberg L., Brunbauer F., Desch K., Hracek M., Lisowska M., Lupberger M., ...More

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol.977, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 977
  • Publication Date: 2020
  • Doi Number: 10.1016/j.nima.2020.164310
  • Title of Journal : NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Abstract

The implementation of the VMM3a Application-Specific Integrated Circuit (ASIC) into the Scalable Readout System (SRS) has opened a new domain for measurements with Micro-Pattern Gaseous Detectors (MPGDs). In the presented studies we demonstrate the capabilities of this system, specifically the time-resolution in the nanosecond regime in combination with a continuous multichannel readout and a 10-bit ADC. We can now resolve the interaction of argon fluorescence X-ray photons created in a gaseous detector and utilise these interactions to determine the electron drift velocity in our detector and to investigate the attenuation length of the fluorescence photons.