6533b862fe1ef96bd12c75ff
RESEARCH PRODUCT
Resolution changes of MCP-PMTs in magnetic fields
J. RiekeA. BeliasR. DzhygadloA. GerhardtK. GötzenG. KalicyM. KrebsD. LehmannF. NerlingM. PatsyukK. PetersG. SchepersL. SchmittC. SchwarzJ. SchwieningM. TraxlerM. ZühlsdorfA. BrittingW. EyrichA. LehmannM. PfaffingerF. UhligM. DürenE. EtzelmüllerK. FöhlA. HayrapetyanB. KröckO. MerleJ. RiekeM. SchmidtE. CowieT. KeriP. AchenbachM. CardinaliM. HoekW. LauthS. SchlimmeC. SfientiM. Thielsubject
PhysicsPhotomultiplierPhotonPhysics::Instrumentation and Detectors010308 nuclear & particles physicsbusiness.industryDetectorResolution (electron density)Electrical engineering01 natural sciences030218 nuclear medicine & medical imagingMagnetic fieldAnode03 medical and health sciences0302 clinical medicineOpticsPosition (vector)0103 physical sciencesbusinessInstrumentationRadiation hardeningMathematical Physicsdescription
Micro-channel plate photomultiplier tubes (MCP-PMTs) are chosen in many applications that have to cope with strong magnetic fields. The DIRC detectors of the PANDA experiment plan to employ them as they show excellent timing characteristics, radiation hardness, relatively low dark count rates and sufficient lifetime. This article mainly focuses on the performance of the position reconstruction of detected photons. Two different MCP-PMTs with segmented anode geometries have been tested in magnetic fields of different strengths. The variation of their performance has been studied. The measurements show improved position resolution and image shifts with increasing magnetic field strength.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-05-03 | Journal of Instrumentation |