1 / 5

■ 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.

duyen
Download Presentation

■ TOF-PET Imaging

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related