Radiation measurements in a labyrinth penetration at a high-energy proton accelerator

Journal Article · Fri Nov 01 04:00:00 EST 1985 · Health Phys.; (United States)

DOI:https://doi.org/10.1097/00004032-198511000-00022· OSTI ID:5744435

Cossairt, J D; Couch, J G; Elwyn, A J; Freeman, W S

The efficient design of access penetrations at high-energy proton accelerators is desirable for both economic and personnel protection reasons. This paper reports on a series of measurements made in a personnel access labyrinth which viewed an A1 target bombarded by 400-GeV protons from the Fermilab Tevatron. Measurements of absorbed dose in the labyrinth using tissue-equivalent ion chambers were consistent with theoretical predictions of both the relative attenuation through the penetration and the absolute magnitude near the target. The multisphere technique was used to determine the neutron energy spectrum in one section of the labyrinth. A recombination chamber was used to measure the quality factor of the radiation field in two sections of the labyrinth. Good agreement with the quality factor deduced from the multisphere result was obtained at the same measurement location.

• OSTI ID: 5744435
• Journal Information: Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 5; ISSN HLTPA
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
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54 ENVIRONMENTAL SCIENCES
ACCELERATORS
BARYONS
CYCLIC ACCELERATORS
DOSES
ELEMENTARY PARTICLES
FERMILAB ACCELERATOR
FERMIONS
HADRONS
MONITORING
NEUTRONS
NUCLEONS
PERSONNEL
PROTONS
QUALITY FACTOR
RADIATION DOSES
RADIATION MONITORING
RADIATION PROTECTION
SYNCHROTRONS