The Magnetic Distortion Calibration System of the LHCb RICH1 Detector
arXiv:1206.0253 · doi:10.1016/j.nima.2013.08.039
Abstract
The LHCb RICH1 detector uses hybrid photon detectors (HPDs) as its optical sensors. A calibration system has been constructed to provide corrections for distortions that are primarily due to external magnetic fields. We describe here the system design, construction, operation and performance.
9 pages, 14 figures