Some Recent Developments in Technique for Monitoring High-Energy Accelerator Radiation

Topics in radiation at accelerators: Radiation physics for personnel and environmental protection

“…Cossairt and Elwyn (C087) determined that air-filled pocket ion chambers of the type that are commonly issued to personnel to allow real-time monitoring of exposure to y-rays, performed very well in muon radiation fields (measuring absorbed doses to within about & 15 %). This is probably due to the fact that the ratio of muon stopping power in tissue to that in air for energies between 1 and 800 GeV is 1.07 & 0.05 (St83). .…”

Topics in radiation at accelerators: Radiation physics for personnel and environmental protection

“…Cossairt and Elwyn (C087) determined that air-filled pocket ion chambers of the type that are commonly issued to personnel to allow real-time monitoring of exposure to y-rays, performed very well in muon radiation fields (measuring absorbed doses to within about & 15 %). This is probably due to the fact that the ratio of muon stopping power in tissue to that in air for energies between 1 and 800 GeV is 1.07 & 0.05 (St83). and has a nearly parallel plate geometry.…”

Implementing the Requirement to Reduce Radiation Exposure to “As Low As Practicable” at the Lawrence Berkeley Laboratory

“…Neutrons with energy greater than about 50 MeV can be measured by means of a bismuth fission counter (McCaslin 1970). The most sensitive bismuth fission chamber in operation is in use at LBL.…”