A one-dimensional multigated time-of-flight acquisition system

Gary Hutchins, Jr Votaw, Km Funk, Ms Rosenthal, Ra Koeppe, Rj Nickles

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A multigated time-of-flight probe system has been developed for the simultaneous measurement of spatial and temporal modulations in the activity distribution of positron emitting radiotracers within the human body. This system consists of a pair of 4x4 cm BaF2 scintillators coupled to Amperex XP2020 Quartz photomultiplier tubes. Constant fraction discrimination provides the time pick-of of each anode signal required to start and stop a Time-to-Amplitude Converter. A slow overlap coincidence channel is used to define the dynamic range of the system and gate the TAC signal through to an ADC/LSI 11/02 microcomputer pair for data storage. A pulsewatch (LED-phototransistor pair) and the appropriate gating logic have been developed to incorporate gating capabilities into the system. A multigated TOF system can provide noninvasive alternatives to measuring blood tracer concentrations in positron emission tomography.

Original languageEnglish (US)
Pages (from-to)835-838
Number of pages4
JournalIEEE Transactions on Nuclear Science
Volume32
Issue number1
DOIs
StatePublished - 1985
Externally publishedYes

Fingerprint

Phototransistors
Positron emission tomography
Photomultipliers
Positrons
Microcomputers
Phosphors
Light emitting diodes
Quartz
positrons
acquisition
Anodes
Blood
Modulation
phototransistors
Data storage equipment
large scale integration
microcomputers
human body
photomultiplier tubes
data storage

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering
  • Nuclear and High Energy Physics

Cite this

A one-dimensional multigated time-of-flight acquisition system. / Hutchins, Gary; Votaw, Jr; Funk, Km; Rosenthal, Ms; Koeppe, Ra; Nickles, Rj.

In: IEEE Transactions on Nuclear Science, Vol. 32, No. 1, 1985, p. 835-838.

Research output: Contribution to journalArticle

Hutchins, Gary ; Votaw, Jr ; Funk, Km ; Rosenthal, Ms ; Koeppe, Ra ; Nickles, Rj. / A one-dimensional multigated time-of-flight acquisition system. In: IEEE Transactions on Nuclear Science. 1985 ; Vol. 32, No. 1. pp. 835-838.
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