TY - JOUR

T1 - Study of discharge properties in cascaded gaseous detectors

AU - Maltsev, T.

AU - Sauli, F.

AU - Shekhtman, L.

PY - 2020/6/11

Y1 - 2020/6/11

N2 - In this work we describe simulation and experimental studies of the possible reasons for the observed increase of the maximum gain in multi-GEM devices. Two main hypotheses are analyzed: First, a diffusion-dominated charge spread reducing the density in individual holes, acting as independent amplifiers and therefore an increase of the discharge limit with the number of cascaded electrodes; second, the possibility that total avalanche charge before transition to a discharge (Raether limit) strongly depends on the field value and is therefore much higher in cascaded than in single-stage systems.

AB - In this work we describe simulation and experimental studies of the possible reasons for the observed increase of the maximum gain in multi-GEM devices. Two main hypotheses are analyzed: First, a diffusion-dominated charge spread reducing the density in individual holes, acting as independent amplifiers and therefore an increase of the discharge limit with the number of cascaded electrodes; second, the possibility that total avalanche charge before transition to a discharge (Raether limit) strongly depends on the field value and is therefore much higher in cascaded than in single-stage systems.

UR - http://www.scopus.com/inward/record.url?scp=85086737313&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1498/1/012033

DO - 10.1088/1742-6596/1498/1/012033

M3 - Conference article

AN - SCOPUS:85086737313

VL - 1498

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012033

T2 - 6th International Conference on Micro Pattern Gaseous Detectors, MPGD 2019

Y2 - 5 May 2019 through 10 May 2019

ER -