Laminated primary ceiling barriers for medical accelerator rooms

P H McGinley; E K Butker

doi:10.1088/0031-9155/39/9/002

Laminated primary ceiling barriers for medical accelerator rooms

Phys Med Biol. 1994 Sep;39(9):1331-6. doi: 10.1088/0031-9155/39/9/002.

Authors

P H McGinley¹, E K Butker

Affiliation

¹ The Emory Clinic, Department of Radiation Ontology, 1365 Clifton Road, Atlanta, GA 30322, USA.

PMID: 15552107
DOI: 10.1088/0031-9155/39/9/002

Abstract

In this work the performance of a number of laminated shields used as the primary ceiling barrier for high-energy accelerator rooms was investigated. The neutron and photon dose equivalent rates were measured outside each shield. Based on the measured photon level and the calculated x-ray leakage level the dose equivalent rate due to photons produced by neutron interactions with the shield materials was estimated. Shielding parameters for polyethylene were established for photons and neutrons. It was found that the barriers designed using the techniques given in an NCRP Report suffered from excessive radiation leakage.

Publication types

Comparative Study
Evaluation Study

MeSH terms

Algorithms
Construction Materials
Guidelines as Topic
Occupational Exposure / analysis
Occupational Exposure / prevention & control*
Particle Accelerators*
Radiation Dosage
Radiation Injuries / prevention & control*
Radiation Protection / instrumentation*
Radiation Protection / methods*
Radiation Protection / standards
Radiometry / methods*
Radiometry / standards
Radiotherapy, High-Energy / adverse effects
Radiotherapy, High-Energy / methods*