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

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

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


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 quatity 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.

Original languageEnglish (US)
Pages (from-to)907-917
Number of pages11
JournalHealth Physics
Issue number5
StatePublished - Nov 1985
Externally publishedYes

ASJC Scopus subject areas

  • Epidemiology
  • Radiology Nuclear Medicine and imaging
  • Health, Toxicology and Mutagenesis


Dive into the research topics of 'Radiation measurements in a labyrinth penetration at a high-energy proton accelerator'. Together they form a unique fingerprint.

Cite this