Neutron measurements in the vicinity of a self-shielded pet cyclotron

The radionuclides used in positron emission tomography (PET) are short-lived and generally must be produced on site using a cyclotron. A common end product of the nuclear reactions used to produce the PET radionuclides is neutron radiation. These neutrons could potentially contribute to the annual e...

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Bibliographic Details
Published in:Radiation protection dosimetry 2004-01, Vol.108 (3), p.255-261
Main Authors: Hertel, N. E., Shannon, M. P., Wang, Z.-L., Valenzano, M. P., Mengesha, W., Crowe, Ronald J.
Format: Article
Language:English
Subjects:
Algorithms
Calibration - standards
Cyclotrons - instrumentation
Equipment Failure Analysis - methods
Fluorine Radioisotopes - analysis
Neutrons
Radiation Dosage
Radiation Protection - instrumentation
Radiation Protection - methods
Radiometry - instrumentation
Radiometry - methods
Risk Assessment - methods
Risk Factors
Sensitivity and Specificity
Software
Spectrum Analysis - methods
Tomography, Emission-Computed - instrumentation
Tomography, Emission-Computed - standards
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Summary:The radionuclides used in positron emission tomography (PET) are short-lived and generally must be produced on site using a cyclotron. A common end product of the nuclear reactions used to produce the PET radionuclides is neutron radiation. These neutrons could potentially contribute to the annual effective dose received by hospital personnel. A Bonner sphere spectrometer was used to measure neutron energy spectra at three locations near a self-shielded PET cyclotron. This cyclotron accelerates protons to 11 MeV. The neutron measurements reported were made during the production of 18F via the 18O(p,n)18F reaction (Q = −2.4 MeV). Neutron spectra were obtained with the BUMS unfolding code and converted to dose equivalent rates.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/nch026