title: The use of a BF3 remmeter to calibrate neutron activation foils in the medical linear accelerator environment.
abstract: A technique has been developed for radiation protection purposes whereby it is possible to measure the dose-equivalent due to neutrons from a dual energy medical linear accelerator using a conventional BF3 neutron remmeter to calibrate gold foils. This technique has been applied to measuring the neutron dose-equivalent from a Philips SL75-20 medical linear accelerator. The tenth value distance for the entrance maze is 3.3 +/- 0.5m compared to a typically quoted value of 5m. This suggests that the use of wood and boron tiles in the construction of the entrance maze can reduce neutron propagation down the maze.
authors.affiliation: Department of Medical Physics, Royal Adelaide Hospital, Australia.
authors.forename: I M
authors.initials: IM
authors.lastname: Borchardt
authors.forename: W A
authors.initials: WA
authors.lastname: Beckham
authors.forename: G C
authors.initials: GC
authors.lastname: Sorell
authors.forename: A H
authors.initials: AH
authors.lastname: Beddoe
mesh_terms: D002138:Calibration; D009502:Neutrons; D010315:Particle Accelerators