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Calibration and stability of a SiPM-based simultaneous PET/MR insert

Research output: Contribution to journalConference paperpeer-review

Christoph W. Lerche, Jane MacKewn, Benjamin Goldschmidt, Andre Salomon, Pierre Gebhardt, Bjoern Weissler, Richard Ayres, Paul Marsden, Volkmar Schulz

Original languageEnglish
Article numberN/A
Pages (from-to)50-53
Number of pages4
JournalNuclear Instruments & Methods In Physics Research Section A, Accelerators, Spectrometers, Detectors And Associated Equipment
Issue numberN/A
Published21 Feb 2013

King's Authors


On behalf of the HYPER Image project, a Silicon photomultiplier (SiPM) based preclinical PET insert for a commercial human 3 T MRI scanner was built. In this contribution we report on the stability of imaging performance of the PET scanner and MR hardness and compatibility. From data sets that were acquired during the last 7 months we extracted SiPM gain values and their annual drift, the mean energy resolution and the energy resolution drift, spatial resolution and spatial resolution drift, and photo peak position and their annual drift. Further, a point source and a hot rod phantom was imaged fully simultaneously with the MRI scanner and the PET scanner. No interference between either modality was observed.

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