Title :
Orbiting transmission source for positron tomography
Author :
Huesman, R.H. ; Derenzo, S.E. ; Cahoon, J.L. ; Geyer, A.B. ; Moses, W.W. ; Uber, D.C. ; Vuletich, T. ; Budinger, T.F.
Author_Institution :
California Univ., Berkeley, CA, USA
Abstract :
Accidental suppression and effective data rates have been measured for the orbiting transmission source as implemented in the Donner 600-crystal positron-emission tomograph (PET). A mechanical description of the orbiting source and a description of the electronics used to discard scattered and accidental events are included. Since accidental coincidences were the rate-limiting factor in transmission data acquisition, this method allows sufficient transmission data to be acquired in a shorter time with a more-active transmission source.<>
Keywords :
biomedical equipment; computerised tomography; radioisotope scanning and imaging; Donner 600-crystal positron-emission tomograph; accidental coincidences; accidental suppression; effective data rates; orbiting transmission source; positron tomography; rate-limiting factor; transmission data acquisition; Attenuation; Data acquisition; Electromagnetic scattering; Extraterrestrial measurements; Laboratories; Particle scattering; Photonic crystals; Positrons; Radioactive decay; Single photon emission computed tomography;
Journal_Title :
Nuclear Science, IEEE Transactions on
