Measurement of thermal properties of the LHCb VELO detector using track-based software alignment - Département Recherches Subatomiques
Journal Articles Journal of Instrumentation Year : 2023

Measurement of thermal properties of the LHCb VELO detector using track-based software alignment

K Akiba
  • Function : Author
M Alexander
  • Function : Author
W Barter
  • Function : Author
G Bogdanova
  • Function : Author
S Borghi
  • Function : Author
T.J.V Bowcock
  • Function : Author
E Buchanan
  • Function : Author
C Burr
  • Function : Author
S Chen
  • Function : Author
P Collins
  • Function : Author
E Dall'Occo
  • Function : Author
S de Capua
  • Function : Author
C.T Dean
  • Function : Author
F Dettori
  • Function : Author
K Dreimanis
  • Function : Author
R Dumps
  • Function : Author
L Eklund
  • Function : Author
T Evans
  • Function : Author
M Ferro-Luzzi
  • Function : Author
M Gersabeck
  • Function : Author
T Gershon
  • Function : Author
L Grillo
  • Function : Author
T Hadavizadeh
  • Function : Author
K Hennessy
  • Function : Author
W Hulsbergen
  • Function : Author
D Hutchcroft
  • Function : Author
E Jans
  • Function : Author
M John
  • Function : Author
P Kopciewicz
  • Function : Author
P Koppenburg
  • Function : Author
T Latham
  • Function : Author
A Leflat
  • Function : Author
M.W Majewski
  • Function : Author
B Mitreska
  • Function : Author
A Oblakowska-Mucha
  • Function : Author
C Parkes
  • Function : Author
W Qian
  • Function : Author
S Redford
  • Function : Author
K Rinnert
  • Function : Author
E Rodrigues
  • Function : Author
G Sarpis
  • Function : Author
M Schiller
  • Function : Author
T Szumlak
  • Function : Author
M Tobin
  • Function : Author
M van Beuzekom
  • Function : Author
V Volkov
  • Function : Author
M.R.J Williams
  • Function : Author

Abstract

The thermal properties of the LHCb Vertex Locator (VELO) are studied using the real-time detector alignment procedure. The variation of the position and orientation of the detector elements as a function of the operating temperature of the VELO is presented. This study uses a dataset collected by the LHCb experiment during a VELO temperature scan performed at the end of LHC Run 2 (October 2018). Significant shrinkage of the VELO modules is observed at the operating temperature of -30°C compared to the laboratory measurements on a single module taken at a range of temperatures from +45°C to -25°C. The thermal shrinkage expected from the extrapolation of laboratory measurements to lower temperatures, and the results of this alignment study are in good agreement.
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Origin Publication funded by an institution

Dates and versions

hal-04228733 , version 1 (09-10-2024)

Identifiers

Cite

K Akiba, M Alexander, W Barter, G Bogdanova, S Borghi, et al.. Measurement of thermal properties of the LHCb VELO detector using track-based software alignment. Journal of Instrumentation, 2023, 18 (10), pp.P10003. ⟨10.1088/1748-0221/18/10/P10003⟩. ⟨hal-04228733⟩
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