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SUMMARY:Advanced Photon Detection (Not only) for Clinical and Preclinical 
 Imaging
DTSTART;VALUE=DATE-TIME:20140619T080000Z
DTEND;VALUE=DATE-TIME:20140619T090000Z
DTSTAMP;VALUE=DATE-TIME:20261015T195939Z
UID:indico-event-2225@indico.ific.uv.es
DESCRIPTION:A fully digital implementation of the Silicon Photomultiplier 
 (SiPM) has been developed in order to overcome the deficiencies and limita
 tions of the so far only analog SiPMs. The Digital Photon Counter (DPC) fr
 om Philips Digital Photon Counting is based on arrays of single photon ava
 lanche diodes (SPADs) integrated in a standard CMOS process. Photons are d
 etected directly by sensing the voltage at the SPAD anode using a dedicate
 d cell electronics block next to each diode. This block also contains acti
 ve quenching and recharge circuits as well as a one bit memory for the sel
 ective inhibit of detector cells. A balanced trigger network is used to pr
 opagate the trigger signal from all cells to the integrated time-to-digita
 l converter. In consequence\, photons are detected and counted as digital 
 signals\, thus making the sensor less susceptible to temperature variation
 s and electronic noise. The integration with CMOS logic provides the added
  benefit of low power consumption and possible integration of data post-pr
 ocessing directly in the sensor. In this overview presentation\, the senso
 r architecture and its characteristics are discussed.\nAs example of appli
 cation\, a fully digital\, Magnetic Resonance Imaging (MRI)-hard and MRI-s
 ilent preclinical Positron Emission Tomography (PET) insert for the Clinic
 al Achieva 3T MRI scanner from Philips Healthcare is presented and discuss
 ed. The usage of SiPM arrays for preclinical PET requires a revision of th
 e algorithms for position and energy determination for high performance po
 sition sensitive scintillation detectors and a Maximum Likelihood based al
 gorithm is presented. Both\, Maximum Likelihood parameter extraction algor
 ithms and Digital Photon Counter sensors are by no means limited in its ap
 plication to clinical and preclinical imaging but may also enable alternat
 ive design and analysis concepts in particle physics.\n\nhttps://indico.if
 ic.uv.es/event/2225/
LOCATION:IFIC Seminar Room 1.1.1
URL:https://indico.ific.uv.es/event/2225/
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