Results from a TPC Prototype with GEM Encap for the Linear Collider Tracker (backtobackDraftNo.5/6April2009)

K. Ackermann C
S. Arai I
D. C. Arogancia F
A. M. Bacala F
M. Ball A
T. Behnke A
V. Eckardt C
K. Fujii
N. Ghodbane A
H. C. Gooc Jr. F
T. Kijima I
M. Hamann A
M. Habu I
R. -d. Heuer
K. Ikematsu
A. Kaukher D
H. Kuroiwa
M. E. Janssen A
Y. Kato G
M. Kobayashi
T. Kuhl A
T. Lux B
T. Matsuda
A. Miyazaki I
K. Nakamura I
O. Nitoh I
R. L. Reserva F
N. Sakamoto
T. Sanuki
R. Settles C
A. Sugiyama H
T. Takahashi E
T. Watanabe K
P. Wienemann A
R. Wurth A

Publication date

January 2015

Abstract

A Time Projection Chamber is being investigated as central tracker for a detector at the International Linear Collider. To provide a comparison and explore the potential improvements using Micro-Pattern Gas Detectors compared with Multi-Wire Proportional Chambers used up to now in TPCs, a small prototype chamber capable of being equipped with different gas-amplification techniques was built at MPI-Munich and exposed to cosmics in the 5 T magnet at DESY and subsequently to a testbeam in a 1 T magnet at KEK. The chamber was operated with four different endplate technologies during four beam periods in 2004–2005. This paper reports on results from the second test using GEM gas-amplification. Key words