By Topic

Development of new high resolution detectors for small animal SPECT imaging

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
$31 $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

7 Author(s)

Summary form only received as follows: New high-resolution gamma-ray detectors are being developed for SPECT imaging of animals. Optimal collimators, reconstruction algorithms and image processing are an important part of the development of animal SPECT. These issues and recent advances in miniature gamma-ray detectors will be presented. Two lines of technical developments are being followed for high-performance gamma-ray imaging systems: the first uses state-of-the-art position-sensitive photomultiplier tubes (PS-PMTs); the second uses silicon-based photodiode detector arrays. Each are coupled to arrays of scintillation crystals. A small system has been assembled with newly developed PS-PMTs that has 1 mm CsI(Na) crystals and was fitted with a hexagonal parallel hole collimator (1.25 mm holes, 0.25 mm septa, 2 cm long). Line spread functions (LSF) were measured with 0.5 mm line sources filled with Tc-99m. The average FWHM of the LSF curves were 2.12±0.16 mm and 2.63±0.15 mm for 0 cm and 1 cm source-collimator distance, respectively. A LSF was made with 1.1 mm pitch (0.85 mm CsI(Tl), 0.25 mm spacing) CsI(Tl)-PIN detector collimated with matching geometry 1 cm long collimator. Mean FWHM=1.91±0.32 mm. Preliminary images from each system are presented

Published in:

Nuclear Science Symposium Conference Record, 2000 IEEE  (Volume:3 )

Date of Conference: