scholarly journals Hole misalignment and gain performance of Gaseous Electron Multipliers

2021 ◽  
pp. 165271
Author(s):  
Erik Brücken ◽  
Jouni Heino ◽  
Timo Hildén ◽  
Matti Kalliokoski ◽  
Vladyslav Litichevskyi ◽  
...  
Keyword(s):  
Gaseous Electron

Study of the structure of the molecule of para-nitroaniline p?C6H4(NO2)(NH2) by gaseous electron diffraction

1977 ◽  
Vol 17 (6) ◽  
pp. 954-956 ◽  
Author(s):  
N. I. Sadova ◽  
N. P. Penionzhkevich ◽  
L. V. Vilkov
Keyword(s):  
Electron Diffraction ◽  
Gaseous Electron

Gaseous electron multiplier gain characteristics using low-pressure Ar/CO2

2017 ◽  
Vol 43 (2) ◽  
pp. 201-210 ◽  
Author(s):  
T. Rogers ◽  
R. McEntaffer ◽  
T. Schultz ◽  
J. McCoy ◽  
D. Miles ◽  
...  
Keyword(s):  
Low Pressure ◽  
Electron Multiplier ◽  
Gaseous Electron

scholarly journals Characterization of a hybrid GEM-Micromegas detector with respect to its application in a continuously read out TPC

2018 ◽  
Vol 174 ◽  
pp. 01016 ◽  
Author(s):  
Viktor Ratza ◽  
Markus Ball ◽  
M. Liebtrau ◽  
Bernhard Ketzer
Keyword(s):  
Space Charge ◽  
Time Projection Chamber ◽  
Alice Experiment ◽  
Detector Performance ◽  
Gaseous Electron ◽  
Alternative Approach ◽  
Amplification System ◽  
Baseline Solution ◽  
Time Projection

In the context of the upgrade of the LHC during the second long shutdown the interaction rate of the ALICE experiment will be increased up to 50 kHz for Pb-Pb collisions. As a consequence, a continuous read-out of the Time Projection Chamber (TPC) will be required. To keep the space-charge distortions at a manageable size, the ion backflow of the charge amplification system has to be significantly reduced. At the same time an excellent detector performance and stability of the system has to be maintained. A solution with four Gaseous Electron Multipliers (GEMs) has been adopted as baseline solution for the upgraded chambers. As an alternative approach a hybrid GEM-Micromegas detector consisting of one Micromegas (MM) and two GEMs has been investigated. The recent results of the study of the hybrid GEM-Micromegas detector will be presented and compared to measurements with four GEM foils.

Molecular structure of di‐π‐cyclopentadienylcobalt, (C5H5)2Co, by gaseous electron diffraction

1975 ◽  
Vol 63 (3) ◽  
pp. 1262-1266 ◽  
Author(s):  
Anne Katherine Hedberg ◽  
Lise Hedberg ◽  
Kenneth Hedberg
Keyword(s):  
Molecular Structure ◽  
Electron Diffraction ◽  
Gaseous Electron
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