title: Monte Carlo dosimetry for the Papillon P50 contact radiotherapy and IORT device.
abstract: Contact radiotherapy uses small field sizes and very short SSDs to deliver low-energy X-rays very close to the position of a tumour. We present a Monte Carlo simulation of the Papillon contact radiotherapy machine, and in particular the backscatter factor, to investigate whether the factors given in current Codes of practice for kV dosimetry remain valid under these conditions.
authors.affiliation: Clatterbridge Cancer Centre, Merseyside, United Kingdom. Electronic address: antony.carver@clatterbridgecc.nhs.uk.
authors.forename: Antony
authors.initials: A
authors.lastname: Carver
authors.forename: Alan
authors.initials: A
authors.lastname: Gately
authors.forename: Richard
authors.initials: R
authors.lastname: Clements
authors.forename: Alan
authors.initials: A
authors.lastname: Nahum
mesh_terms: D003198:Computer Simulation; D006801:Humans; D007430:Intraoperative Care / Q000295:instrumentation / Q000379:methods; D009010:Monte Carlo Method; D009369:Neoplasms / Q000532:radiotherapy* / Q000601:surgery*; D011874:Radiometry / Q000295:instrumentation / Q000379:methods; D011880:Radiotherapy Planning, Computer-Assisted / Q000379:methods*; D012542:Scattering, Radiation
keywords: Backscatter factor; Contact radiotherapy; Dosimetry; Monte Carlo; Papillon P50