TY - JOUR
T1 - The current mode Time-over-Threshold ASIC for a MPPC module in a TOF-PET system
AU - Orita, T.
AU - Koyama, A.
AU - Yoshino, M.
AU - Kamada, K.
AU - Yoshikawa, A.
AU - Shimazoe, K.
AU - Sugawara, H.
PY - 2018/12/21
Y1 - 2018/12/21
N2 - Silicon photo-multipliers (SiPMs) and multipixel photon counters (MPPCs) are solid-state silicon photosensors operating in the Geiger mode. These photosensors possess high gain and high timing performance. In the field of medicine, these photosensors are employed in positron emission tomography (PET), and their features are used for time-of-flight PET (TOF-PET). We designed a 48 channels front-end application specific integration circuit (ASIC) for MPPCs of the TOF-PET system. The circuit in the ASIC consists of a current processing method for realizing a high speed performance. At the output stage, a current mode Time-over-Threshold (ToT) circuit was implemented. The current mode ToT converts the current signal from the MPPC into a digital pulse signal and supplies the timing and energy information. We performed experiments for timing resolution measurement, spectra measurement, and coincidence measurement.
AB - Silicon photo-multipliers (SiPMs) and multipixel photon counters (MPPCs) are solid-state silicon photosensors operating in the Geiger mode. These photosensors possess high gain and high timing performance. In the field of medicine, these photosensors are employed in positron emission tomography (PET), and their features are used for time-of-flight PET (TOF-PET). We designed a 48 channels front-end application specific integration circuit (ASIC) for MPPCs of the TOF-PET system. The circuit in the ASIC consists of a current processing method for realizing a high speed performance. At the output stage, a current mode Time-over-Threshold (ToT) circuit was implemented. The current mode ToT converts the current signal from the MPPC into a digital pulse signal and supplies the timing and energy information. We performed experiments for timing resolution measurement, spectra measurement, and coincidence measurement.
KW - ASIC
KW - CMOS
KW - Gamma-ray
KW - MPPC
KW - PET: TOF-PET
KW - SiPM
UR - http://www.scopus.com/inward/record.url?scp=85038828862&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85038828862&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2017.11.097
DO - 10.1016/j.nima.2017.11.097
M3 - Article
AN - SCOPUS:85038828862
VL - 912
SP - 303
EP - 308
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
ER -