The readout electronics of the Micromegas-based large time projection chamber prototype for the International Linear Collider

2012 ◽  
Author(s):  
D. Attie ◽  
D. Besin ◽  
D. Calvet ◽  
P. Colas ◽  
R. Joannes ◽  
...  
Keyword(s):  
Time Projection Chamber ◽  
Large Time ◽  
Linear Collider ◽  
International Linear Collider ◽  
Readout Electronics ◽  
Time Projection

scholarly journals Track distortion in the Large prototype of a Time Projection Chamber for the International Linear Collider

2016 ◽  
Vol 759 ◽  
pp. 012075
Author(s):  
Deb Sankar Bhattacharya ◽  
Purba Bhattacharya ◽  
Supratik Mukhopadhyay ◽  
Nayana Majumdar ◽  
Sudeb Bhattacharya ◽  
...  
Keyword(s):  
Time Projection Chamber ◽  
Linear Collider ◽  
International Linear Collider ◽  
Time Projection

Design and Construction of a TPC using GEM Foils for Gas Amplification

2005 ◽  
Vol 20 (16) ◽  
pp. 3820-3822
Author(s):  
Michael Weber
Keyword(s):  
Magnetic Fields ◽  
Large Time ◽  
Linear Collider ◽  
Test Chamber ◽  
High Magnetic Fields ◽  
Electron Multiplier ◽  
Gas Electron Multiplier ◽  
Charge Cloud ◽  
Small Test ◽  
Time Projection

We report on the development of a large Time Projection Chamber (TPC) for the e+e- Linear Collider (LC). Our studies concentrate on the use of Gas Electron Multiplier (GEM) foils for the gas amplification in the TPC. Charge transfer measurements are performed using a triple-GEM structure installed into a small test chamber which is irradiated with an 55 Fe source. This device is operated in high magnetic fields up to 5 T. No severe drop in primary ionisation statistics is observed, but an improved suppression of ion backdrift is achieved. For optimum settings the relative ion backdrift drops to only 2 per mil. Additionally, the width of the charge cloud created by individual 55 Fe photons is measured using a finely segmented strip readout behind the triple GEM structure. Charge widths between 0.2 and 0.5 mm RMS are observed. This charge broadening is reduced in high magnetic fields. Based on these experiments a prototype GEM-TPC has been constructed for further tests in the 5 T magnet and in test beams.

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