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Performance of a full-size small-strip thin gap chamber prototype for the ATLAS new small wheel muon upgrade
详细信息
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作者:
A. Abusleme
c
;
C. Bé
;
langer-Champagne
b
;
A. Bellerive
a
;
Y. Benhammou
f
;
J. Botte
a
;
H. Cohen
f
;
M. Davies
f
;
Y. Du
k
;
L. Gauthier
i
;
T. Koffas
a
;
S. Kuleshov
h
;
B. Lefebvre
b
;
C. Li
k
;
N. Lupu
e
;
G. Mikenberg
l
;
D. Mori
d
;
J.P. Ochoa-Ricoux
c
;
E. Perez Codina
g
;
m
;
S. Rettie
g
;
j
;
A. Robichaud-Vé
;
ronneau
b
;
R. Rojas
h
;
M. Shoa
l
;
V. Smakhtin
l
;
B. Stelzer
d
;
;
O. Stelzer-Chilton
g
;
A. Toro
h
;
H. Torres
d
;
P. Ulloa
h
;
B. Vachon
b
;
G. Vasquez
h
;
A. Vdovin
e
;
S. Viel
g
;
P. Walker
c
;
S. Weber
a
;
C. Zhu
k
关键词:
LHC
;
ATLAS upgrade
;
Muon spectrometer
;
Gaseous detectors
;
Tracking
;
Trigger
刊名:Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
出版年:2016
出版时间:1 May 2016
年:2016
卷:817
期:Complete
页码:85-92
全文大小:2009 K
文摘
The instantaneous luminosity of the Large Hadron Collider at CERN will be increased up to a factor of five with respect to the present design value by undergoing an extensive upgrade program over the coming decade. The most important upgrade project for the ATLAS Muon System is the replacement of the present first station in the forward regions with the so-called New Small Wheels (NSWs). The NSWs will be installed during the LHC long shutdown in 2019/2020. Small-Strip Thin Gap Chamber (sTGC) detectors are designed to provide fast trigger and high precision muon tracking under the high luminosity LHC conditions. To validate the design, a full-size prototype sTGC detector of approximately
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900
216001285&_rdoc=1&_issn=0168
900
2&md5=a69274727e1f80b5c7b2914c8fe39f1a">
900216001285-si0003.gif">
900216001285-si0003.gif">
1.2
×
1.0
m
2
consisting of four gaps has been constructed. Each gap provides pad, strip and wire readouts. The sTGC intrinsic spatial resolution has been measured in a
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900
216001285&_rdoc=1&_issn=0168
900
2&md5=3912dec73a62b7acb8045b89af85ef6e">
900216001285-si0004.gif">
900216001285-si0004.gif">
32
GeV
pion beam test at Fermilab. At perpendicular incidence angle, single gap position resolutions of about 50 μm have been obtained, uniform along the sTGC strip and perpendicular wire directions, well within design requirements. Pad readout measurements have been performed in a
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900
216001285&_rdoc=1&_issn=0168
900
2&md5=5face3f0d6370d7fa3bd2e96892c8884">
900216001285-si0005.gif">
900216001285-si0005.gif">
130
GeV
muon beam test at CERN. The transition region between readout pads has been found to be 4 mm, and the pads have been found to be fully efficient.
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