Aapm 108

Mark T.

The 0. As a result, barrier shielding may be required in floors and ceilings as well as adjacent walls. Since the patient becomes the radioactive source after the radiopharmaceutical has been administered, one has to consider the entire time that the subject remains in the clinic. Information about the physical properties of the most commonly used clinical PET radionuclides is summarized, although the report primarily refers to fluorine Typical PET imaging protocols are reviewed and exposure rates from patients are estimated including self-attenuation by body tissues and physical decay of the radionuclide.

Aapm 108

Calculated shielding requirements may be conservative in some areas when assuming a static point source and absence of scanner self-shielding. Dosimeters were also placed at three positions in the ceiling along the axial length of the scanner. Each position contained three dosimeters covered with 0, 1. Dosimeters were switched out every month for a total collection period of 10 months. The dosimeter measurements were compared to TG estimates by dividing the measured dose by the TG calculated dose. Results: The PET gantry provided considerable shielding in the transaxial detector plane resulting in a low measured to calculated dose ratio of 0. The ratio increased to 0. Dose ratios at the foot of the scanner were near unity at the walls but as high as 2 in the ceiling. The high ceiling dose was attributed to unshielded radiation contributions from the dose handling area. Conclusions: TG provides accurate dose estimates when there is no barrier between the patient and measurement location. Careful consideration of the shielding properties of the scanner can reduce the amount of shielding necessary to include in walls. Publication types Comparative Study.

Radiology - Physics Radiology.

AAPM is a scientific, educational, and professional nonprofit organization devoted to the discipline of physics in medicine. The information provided in this website is offered for the benefit of its members and the general public, however, AAPM does not independently verify or substantiate the information provided on other websites that may be linked to this site. Encrypted Login. Report No. The 0. As a result, barrier shielding may be required in floors and ceilings as well as adjacent walls.

AAPM is a scientific, educational, and professional nonprofit organization devoted to the discipline of physics in medicine. The information provided in this website is offered for the benefit of its members and the general public, however, AAPM does not independently verify or substantiate the information provided on other websites that may be linked to this site. Encrypted Login. Report No. The 0. As a result, barrier shielding may be required in floors and ceilings as well as adjacent walls. Since the patient becomes the radioactive source after the radiopharmaceutical has been administered, one has to consider the entire time that the subject remains in the clinic. Information about the physical properties of the most commonly used clinical PET radionuclides is summarized, although the report primarily refers to fluorine

Aapm 108

The 0. As a result, barrier shielding may be required in floors and ceilings as well as adjacent walls. Since the patient becomes the radioactive source after the radiopharmaceutical has been administered, one has to consider the entire time that the subject remains in the clinic. Information about the physical properties of the most commonly used clinical PET radionuclides is summarized, although the report primarily refers to fluorine Typical PET imaging protocols are reviewed and exposure rates from patients are estimated including self-attenuation by body tissues and physical decay of the radionuclide.

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Madsen, Mark T. Tables and graphs of estimated transmission factors for lead, steel, and concrete at 0. Typical PET imaging protocols are reviewed and exposure rates from patients are estimated including self-attenuation by body tissues and physical decay of the radionuclide. Similar Records. Votaw , Richard E. The 0. Dosimeters were switched out every month for a total collection period of 10 months. Careful planning with the equipment vendor, facility architect, and a qualified medical physicist is necessary to produce a cost effective design while maintaining radiation safety standards. Each position contained three dosimeters covered with 0, 1. Meeting the regulatory limits for uncontrolled areas can be an expensive proposition. Votaw, Richard E. The ratio increased to 0. GOV collections:.

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Publication types Comparative Study. Careful planning with the equipment vendor, facility architect, and a qualified medical physicist is necessary to produce a cost effective design while maintaining radiation safety standards. AU - Halama, James R. As a result, barrier shielding may be required in floors and ceilings as well as adjacent walls. In: Medical physics , Vol. Typical PET imaging protocols are reviewed and exposure rates from patients are estimated including self-attenuation by body tissues and physical decay of the radionuclide. Other availability. Votaw , Richard E. Information about the physical properties of the most commonly used clinical PET radionuclides is summarized, although the report primarily refers to fluorine United States. Madsen, Mark T. Dosimeters were switched out every month for a total collection period of 10 months. Tables and graphs of estimated transmission factors for lead, steel, and concrete at 0. Dosimeters were also placed at three positions in the ceiling along the axial length of the scanner. Information about the physical properties of the most commonly used clinical PET radionuclides is summarized, although the report primarily refers to fluorine