A novel parallel hole collimator for high resolution SPET imaging with a compact LaBr3 gamma camera

R. Pani, R. Pellegrini, P. Bennati, M.N. Cinti, S. Ridolfi, R. Scafè, G.De Vincentis, S. Lo Meo, N. Lanconelli, F. Navarria, G. Moschini, A. Fabbri, E. D'Abramo, D. Sacco, V.Orsolini Cencelli, F.De Notaristefani

Research output: Contribution to conferencePaper

9 Citations (Scopus)

Abstract

In this work we propose an analysis of a novel Low Energy (LE) parallel hole collimator for high resolution single photon emission tomography (SPET) applications. This prototype, realized jointly with Nuclear Fields, is a lead parallel hole collimator with 1.0 mm hexagonal hole, 18 mm length, 0.2 mm septa and 10xl0 cm2 of useful detection area. has been planned to match the high spatial resolution performances of a compact gamma camera based on LaBr3:Ce continuous scintillation crystal. The imaging performances of this prototype are compared with others two parallel collimators, for different dimensions and applications, and a tungsten pinhole collimator ones. All the collimators were tested with a compact scintillation gamma camera based on LaBr3:Ce continuous crystal and multi anode photomultipler tube (MA-PMT) Hamamatsu H8500. The high intrinsic spatial resolution of this crystal enhances the response of collimators at short source-to-collimator distance (SCD) overcoming alignment problems with the collimator pattern. From our analysis the collimator prototype seems to be complementary with the use of pinhole one and when coupled to the compact LaBr3:Ce gamma camera can allow a very attractive trade-ofT between spatial resolution, sensitivity and detection area for radionuclide molecular imaging applications. ©2008 IEEE.
Original languageEnglish
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008 - , Germany
Duration: 1 Jan 2008 → …

Conference

Conference2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
CountryGermany
Period1/1/08 → …

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All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Pani, R., Pellegrini, R., Bennati, P., Cinti, M. N., Ridolfi, S., Scafè, R., ... Notaristefani, F. D. (2008). A novel parallel hole collimator for high resolution SPET imaging with a compact LaBr3 gamma camera. Paper presented at 2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008, Germany. https://doi.org/10.1109/NSSMIC.2008.4774115