Published June 2005 | Version v1
Journal article

Characterization of a tungsten/gas multislit collimator for microbeam radiation therapy at the European Synchrotron Radiation Facility

  • 1. Institute of Pathology, University of Bern, Murtenstrasse 31, 3010 Bern (Switzerland)
  • 2. Tecomet Subsidiary, Viasys Healthcare Inc., 170 New Boston Street, Woburn, Massachusetts 01801 (United States)
  • 3. Institute of Pathology, Kantonsspital Luzern, 6000 Lucerne (Switzerland)
  • 4. P.O.B. 334, Essex, Connecticut 06426 (United States)
  • 5. Niederwiesstrasse 13 C, CH-5427 Untersiggenthal (Switzerland)
  • 6. Unterriedstrasse 33, 5412 Gebenstorf (Switzerland)
  • 7. European Synchrotron Radiation Facility, B.P.220, 38043 Grenoble (France)

Description

Clinical microbeam radiation therapy (MRT) will require a multislit collimator with adjustable uniform slit widths to enable reliable Monte Carlo-based treatment planning. Such a collimator has been designed, fabricated of >99% tungsten [W] by Tecomet/Viasys (Woburn, Massachusetts, USA) and installed at the 6 GeV electron-wiggler-generated hard x-ray ID17 beamline of the European Synchrotron Radiation Facility. Its pair of 125 parallel, 8 mm deep, 0.100 mm wide radiolucent slits, 0.400 mm on center, are perfused with nitrogen gas [N2] to dissipate heat during irradiation. Major improvements in uniformity of microbeam widths and good peak/valley dose ratios combined with a very high dose rate in targeted tissues have been achieved

Additional details

Identifiers

Publishing Information

Journal Title
Review of Scientific Instruments
Journal Volume
76
Journal Issue
6
Journal Page Range
p. 064303-064303.7
ISSN
0034-6748
CODEN
RSINAK

Optional Information

Notes
(c) 2005 American Institute of Physics