Back to Search
Start Over
Investigation of GaGG:Ce with TOFPET2 ASIC Readout for Applications in Gamma Imaging Systems
- Source :
- Crystals, Volume 10, Issue 12, Crystals, Vol 10, Iss 1073, p 1073 (2020)
- Publication Year :
- 2020
-
Abstract
- We investigated two detector modules, each consisting of a 8 &times<br />8 matrix of GaGG:Ce crystals with a crystal size of 3 &times<br />3 &times<br />20 mm3 and a 3.2 mm pitch. The light is collected by a 8 &times<br />8 silicon photomultiplier array, with one silicon photomultiplier matching one crystal. The signals are read out and processed using the TOFPET2 ASIC. Performed laboratory tests of the detectors were performed using a 22Na source, where energy and coincidence time resolution with different optical coupling were examined between the crystals and silicon photomultipliers, as well as under various operating voltages. The mean energy resolution of 9.8&plusmn<br />0.6% at 511 keV was observed and it was shown that the coincidence time resolution of 384&plusmn<br />33 ps could be achieved. The results reassure that the GaGG scintillator is a very promising candidate for the development of imaging systems, in particular, ones utilizing Compton scattering where the energy resolution plays a critical role and a moderate timing performance is acceptable.
- Subjects :
- compton imaging
Materials science
positron emission tomography
General Chemical Engineering
Scintillator
01 natural sciences
Coincidence
030218 nuclear medicine & medical imaging
Inorganic Chemistry
Crystal
GaGG
03 medical and health sciences
0302 clinical medicine
Silicon photomultiplier
0103 physical sciences
lcsh:QD901-999
General Materials Science
silikonski fotomultiplikator
pozitronska emisijska tomografija
Compton-sko oslikavanje, polarizacija gama-zraka
TOFPET2
010308 nuclear & particles physics
business.industry
Resolution (electron density)
Detector
Compton scattering
Condensed Matter Physics
NATURAL SCIENCES. Physics
gamma polarization
PRIRODNE ZNANOSTI. Fizika
Optoelectronics
lcsh:Crystallography
business
silicon photomultiplier
Voltage
Subjects
Details
- Language :
- English
- ISSN :
- 20734352
- Database :
- OpenAIRE
- Journal :
- Crystals, Volume 10, Issue 12, Crystals, Vol 10, Iss 1073, p 1073 (2020)
- Accession number :
- edsair.doi.dedup.....21c0046a0c6c256529c6e12b1d566484