By Topic

Development of a Multi-Pixel Photon Counter Module for Positron Emission Tomography

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
K. Shimizu ; Central Research Laboratory, Hamamatsu Photonics K.K., Hamamatsu-City, Japan ; H. Uchida ; K. Sakai ; M. Hirayanagi
more authors

A new detector module for positron emission tomography using multi-pixel photon counters (MPPCs) was developed. The detection area is 40 mm × 40 mm using an 8 × 8 MPPC array. The active area of each MPPC is 3 mm × 3 mm. The detector module contains preamplifiers, digital-to-analog converters for setting the bias offset, a 2D resistor network for position encoding, a high-voltage module, a temperature sensor, and embedded microprocessor units. Since the MPPC gain depends on temperature, compensation was performed by varying the bias voltage. Two kinds of flood images of an 8 × 8 array (5-mm pitch) and a 32 × 32 (1.25-mm pitch) array were acquired and examined. The timing resolution and the effect of dark counts were evaluated. With a reference detector consisting of a BaF2 crystal coupled to a PMT, the timing resolution was 354 ps when a single 5 mm × 5 mm × 20 mm LYSO scintillator was coupled to one MPPC channel. However, the time resolution of the array deteriorated because of the increase in dark counts.

Published in:

IEEE Transactions on Nuclear Science  (Volume:60 ,  Issue: 3 )