Measurement of thermal properties of the LHCb VELO detector using track-based software alignment [Elektronisk resurs]

• 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(degrees)C compared to the laboratory measurements on a single module taken at a range of temperatures from +45(degrees)C to -25(degrees)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. 

Ämnesord

Natural Sciences  (hsv)

Physical Sciences  (hsv)

Accelerator Physics and Instrumentation  (hsv)

Naturvetenskap  (hsv)

Fysik  (hsv)

Acceleratorfysik och instrumentering  (hsv)

Natural Sciences  (hsv)

Physical Sciences  (hsv)

Subatomic Physics  (hsv)

Naturvetenskap  (hsv)

Fysik  (hsv)

Subatomär fysik  (hsv)

Genre

government publication  (marcgt)

Indexterm och SAB-rubrik

Detector alignment and calibration methods (lasers

sources

particle-beams)

Particle tracking detectors (Solid-state detectors)

Performance of High Energy Physics Detectors