Report/Guide

McEwen, M R; Williams, A J; DuSautoy, A R (1998) Trial calibrations of therapy level electron beam ionisation chambers in terms of absorbed dose to water. NPL Report. CIRM 20

McEwen, M R; Duane, S (1998) Development of a portable graphite calorimeter for photons and electrons. NPL Report. CIRM 18

Williams, A J; McEwen, M R; DuSautoy, A R (1998) A calculation of the water to graphite perturbation factor ratios for the NCAP type 02 ionisation chamber using Monte Carlo techniques. NPL Report. CIRM 13

Williams, A J; McEwen, M R; Burns, D T (1998) A new beam current monitor for the NPL linear accelerator facilty. NPL Report. CIRM 12

McEwen, M R; Williams, A J (1996) Measurement of electron depth-dose distribution in water and determination of Linac beam energy. NPL Report. CIRA(EXT)011

Williams, A J; Burns, D T; McEwen, M R (1993) Measurement of the specific heat capacity of the electron-beam grahite calorimeter. NPL Report. RSA(EXT) 40

McEwen, M R; Burns, D T; Williams, A J (1993) The use of thermistors in the NPL electron-beam calorimeter. NPL Report. RSA(EXT)41

Article

Nutbrown, R F; McEwen, M R; Thomas, R A S; Duane, S; Shipley, D R (2001) Comparison of conversion factors for x-ray beams from Philips SL15 and the NPL linear accelerator. Phys. Med. Biol., 46. N245-N252

McEwen, M R; Williams, A J; DuSautoy, A R (2001) Determination of absorbed dose calibration factors for therapy level electron beam ionization chambers. Phys. Med. Biol., 46 (3). pp. 741-755.

McEwen, M R; Duane, S (2000) A portable calorimeter for measuring absorbed dose in the radiotherapy clinic. Phys. Med. Biol., 45 (12). pp. 3675-3691.

Burns, D T; McEwen, M R (1998) Ion recombination corrections for the NCAP parallel-plate chamber in a pulsed electron beam. Phys. Med. Biol., 43 (8). pp. 2033-2045.

McEwen, M R; DuSautoy, A R; Williams, A J (1998) The calibration of therapy level electron beam ionization chambers in terms of absorbed dose to water. Phys. Med. Biol., 43 (9). pp. 2503-2519.

DuSautoy, A R; McEwen, M R (1997) Pilot trial of NPL absorbed dose calibration service for electron beam radiotherapy. Scope (IPEMB Journal), 6. pp. 47-48.

Duane, S; McEwen, M R (1996) Calibration techniques for radiotherapy. Radmagazine, 22 (256). p. 38.

Burns, D T; Duane, S; McEwen, M R (1996) Letters to the Editor: comments on 'A new method to determine ratios of electron stopping powers to an improved accuracy'. Phys. Med. Biol., 41. pp. 785-788.

Burns, D T; Duane, S; McEwen, M R (1995) A new method to determine ratios of electron stopping powers to an improved accuracy. Phys. Med. Biol., 40 (May). pp. 733-739.

Burns, D T; McEwen, M R; Williams, A J (1994) An NPL absorbed-dose calibration service for electron-beam radiotherapy. IAEA Publication STI/PUB/930. 61 - 71

Burns, D T; McEwen, M R; Williams, A J (1994) The NPL standard of absorbed dose to water for electron-beam radiotherapy. Phys. Med. Biol., 39a (Octobe). 796 (abstract only)

Conference or Workshop Item

McEwen, M R; Duane, S; Thomas, R A S; Rosser, K E (2001) The role of the National Physical Laboratory in monitoring and improving dosimetry in UK radiotherapy. In: International Conference on Medical Physics, 2001.

Williams, A J; McEwen, M R; DuSautoy, A R (1999) Radiation measurement and research for space applications at the National Physical Laboratory. In: Space Radiation Environment Workshop, 1999, DERA.

Williams, A J; McEwen, M R; DuSautoy, A R (1998) Radiation testing for space applications at the National Physical Laboratory. In: 1998 IEEE Radiation Effects Data Workshop. NSREC 98., 24 July 1998, Newport Beach, CA, USA.

McEwen, M R; Burns, D T; Williams, A J (1994) Progress on the NPL graphite calorimeter for electron beam radiotherapy. In: NPL Calorimetry Workshop, 12 - 14 October 1994, National Physical Laboratory, Teddington, UK.