Novel time over threshold based readout method for MRI compatible small animal PET detector

Author

Valastyan, I. ; Gal, Janos ; Hegyesi, Gyula ; Kalinka, G. ; Nagy, Ferenc ; Kiraly, B. ; Imrek, Jozsef ; Molnar, Jozsef ; Colarieti-Tosti, M. ; Szabo, Zsolt ; BaIkay, L.

Author_Institution

Inst. of Nucl. Res., Debrecen, Hungary

fYear

2012

fDate

Oct. 27 2012-Nov. 3 2012

Firstpage

1295

Lastpage

1299

Abstract

Combined PET-MRI scanners start a new era in medical imaging. However the development of MRI compatible PET detector module is a challenging task. SiPM sensors are insensitive to magnetic field and constitute a promising solution. A drawback is the high dark current. A readout concept for SiPM based small animal PET detector module is presented in this paper. The results show that the readout of the SiPM is possible using only four ADC channels and the position map is comparable to the ideal solution. The detector modules based on the method are feasible solution for MRI compatible PET scanners.

Keywords

biomedical MRI; biomedical equipment; photomultipliers; positron emission tomography; readout electronics; ADC channels; MRI compatible PET scanners; MRI compatible small animal PET detector; SiPM based small animal PET detector module; SiPM sensors; dark current; magnetic field; medical imaging; position map; time over threshold based readout method;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE

Conference_Location

Anaheim, CA

ISSN

1082-3654

Print_ISBN

978-1-4673-2028-3

Type

conf

DOI

10.1109/NSSMIC.2012.6551317

Filename

6551317