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■ TOF-PET Imaging

Timing resolution required for MPPC ≤ 200 ps. ■ TOF-PET Imaging. PET. t1. t2. TOF-PET. D d = c x D t /2 When D t = 300 ps ➔ D d = 4.5 cm. C. 250 ps. D. E. E. 140 ps. C. D. Timing resolution has improved from 250 ps to 140 ps. ■ Results. Pulse intensity: 10 photons.

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■ TOF-PET Imaging

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  1. Timing resolution required for MPPC ≤ 200 ps ■ TOF-PET Imaging PET t1 t2 TOF-PET Dd = c x Dt /2 When Dt = 300 ps ➔Dd = 4.5 cm

  2. C 250 ps D E E 140 ps C D Timing resolution has improved from 250 ps to 140 ps. ■ Results Pulse intensity: 10 photons High time resolution : Standard MPPC : New MPPC 6x4 mm2, 50 mm pitch Operating overvoltage range has expanded.

  3. ■ Summary 6x4 mm2, 50 mm pitch Overvoltage = 2.5 V *1) overvoltage = 2.0 V

  4. γ ｔ1 γ t2 e+ e- x Applications • ■ Medical • ・ PET • MR-PET (Insensitive to magnetic field) • TOF-PET(good timing resolution) • DOI-PET(conpact) • ■ Academic • ・ High energy physics experiment • ・ Elementary particle physics • ・ Astronomy physics • ■ Measurement • ・ Distance measurement • ・ DNA Sequencer • ・ Diagnosis of blood • ・ Fluorescence measurement TOF-PET （ t2 - t1 )・c X = 2 DOI-PET

  5. 64ch (8x8) array: C11206-0808 series HV module Resistive charge division network Amp circuit S11834-3388DFdiscrete 64ch array of 3×3mm, 50μm pitch with FPC Including ASIC(2 of 32ch preamplifier) and bias circuit for MPPC

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