Author:
Manfredotti C.,Fizzotti F.,Galetto M.,Giudice A. Lo,Margherita D.,Ongaro C.,Polesello P.,Vittone E.
Abstract
AbstractMiniature metal-diamond wire detectors have been fabricated by Hot Filament Chemical Vapor Deposition (HFCVD) method and characterized as x-ray dosimeters in the energy range 50 keV–250 keV. Linearity of the response and the sensitivity as a function of energy have been accurately determined in a range routinely used for x-ray radiotherapy. With a Mo wire substrate, a 10 μm thick CVD diamond film can reach sensitivities of the order of 4×10−8 A/Gy/min, more than one order of magnitude larger than for a 6 cm3 standard ionization chamber.
Publisher
Springer Science and Business Media LLC
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