2024-03-29T11:45:19Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00018555
2022-12-14T04:16:10Z
1169:1170
Next-generation PET capability with lutetium fine silicate and multi-pixel photon counter
Yamazaki, M
Takeshita, T
Hasegawa, Y
Gamma camera
SPECT
PET PET/CT
coronary CT angiography (CTA)
Photon detectors for UV
visible and IR photons (solid-state)
Scintillators and scintillating fibres and light guides
Currently, positron emission tomography (PET) systems are rapidly developing owing to the invention of new scintillators and photosensors, which contribute to construction of clearer and high-resolution images in cancer diagnosis. In this study, we used a Lutetium Fine Silicate (LFS) inorganic scintillator and multi-pixel photon counter (MPPC) as a photosensor. This combination is realistic for next-generation PET systems. These devices were directly coupled to form a unit detector. A pair of detector units was placed face-to-face, and they simultaneously detected annihilation gamma rays, assuming a pair detector in the PET system. A timing resolution of 96 ps in full width at half maximum (FWHM) was obtained. This result is almost the fastest timing resolution ever achieved. A good timing resolution contributes to noise reduction that leads to clear images. Furthermore, a spatial resolution of 1.9 mm in FWHM was obtained, which is sufficient to meet the spatial resolution requirements for next-generation PET systems.
Article
JOURNAL OF INSTRUMENTATION. 7:P10014 (2012)
IOP PUBLISHING LTD
2012-10
eng
journal article
AM
http://hdl.handle.net/10091/00019317
https://soar-ir.repo.nii.ac.jp/records/18555
https://doi.org/10.1088/1748-0221/7/10/P10014
10.1088/1748-0221/7/10/P10014
1748-0221
AA12456425
JOURNAL OF INSTRUMENTATION
7
P10014
https://soar-ir.repo.nii.ac.jp/record/18555/files/jinst7-P10014-prep.pdf
application/pdf
450.0 kB
2016-11-22