TY - JOUR
T1 - Test beam performance measurements for the Phase I upgrade of the CMS pixel detector
AU - Gädda, A.
AU - Härkonen, J.
AU - Lampén, T.
AU - Luukka, P.
AU - Peltola, T.
AU - Tuominen, Eija
AU - Tuovinen, Esa
AU - Winkler, A.
AU - Eerola, P.
AU - Tuuva, T.
AU - Tracker Group of the CMS Collaboration
N1 - Full author list is found in the publication.
© CERN 2017.
PY - 2017/5/30
Y1 - 2017/5/30
N2 - A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase I Upgrade of the LHC . The new CMS pixel detector provides four-hit tracking with a reduced material budget as well as new cooling and powering schemes. A new front-end readout chip mitigates buffering and bandwidth limitations, and allows operation at low comparator thresholds. In this paper, comprehensive test beam studies are presented, which have been conducted to verify the design and to quantify the performance of the new detector assemblies in terms of tracking efficiency and spatial resolution. Under optimal conditions, the tracking efficiency is 99.95 ± 0.05%, while the intrinsic spatial resolutions are 4.80 ± 0.25 µm and 7.99 ± 0.21 µm along the 100 µm and 150 µm pixel pitch, respectively. The findings are compared to a detailed Monte Carlo simulation of the pixel detector and good agreement is found.
AB - A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase I Upgrade of the LHC . The new CMS pixel detector provides four-hit tracking with a reduced material budget as well as new cooling and powering schemes. A new front-end readout chip mitigates buffering and bandwidth limitations, and allows operation at low comparator thresholds. In this paper, comprehensive test beam studies are presented, which have been conducted to verify the design and to quantify the performance of the new detector assemblies in terms of tracking efficiency and spatial resolution. Under optimal conditions, the tracking efficiency is 99.95 ± 0.05%, while the intrinsic spatial resolutions are 4.80 ± 0.25 µm and 7.99 ± 0.21 µm along the 100 µm and 150 µm pixel pitch, respectively. The findings are compared to a detailed Monte Carlo simulation of the pixel detector and good agreement is found.
KW - Particle tracking detectors (Solid-state detectors)
KW - Radiation-hard detectors
KW - Solid state detectors
UR - http://www.scopus.com/inward/record.url?scp=85021124973&partnerID=8YFLogxK
U2 - 10.1088/1748-0221/12/05/P05022
DO - 10.1088/1748-0221/12/05/P05022
M3 - Article
AN - SCOPUS:85021124973
SN - 1748-0221
VL - 12
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 5
M1 - P05022
ER -