Paper 2001-04

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  1. Presented at 11th International workshop on room temperature semiconductor, x and gamma ray detectors and associated electronics, October 11-15 1999,Vienna (Austria) and published in Nucl. Instr. And Meth. In Phys. Res Nucl. Instr. And Meth. In Phys. Res. A, 458 (1-2) (2001) pp. 360-361

C.Manfredotti1,2, A.Lo Giudice1,2, C.Ricciardi1, C.Paolini1, E.Massa3, F.Fizzotti1,2 and E.Vittone 1,2

1Experimental Physics Department, University of Torino (I)

2INFM, Unity of Torino University

3Istituto di Metrologia "G.Colonnetti", CNR, Torino

Keywords: CVD diamond, x-ray detectors, solid state detectors, dosimetry.


CVD diamond detectors have been evaluated for use as x-ray dosimeters. The response both at radiological diagnostic and at therapeutic energies of one "detector grade" commercially available parallelepiped CVD sample has been measured and compared with the performances of a "needle shaped" CVD diamond detector grown by the hot filament CVD technique on a tungsten tip. All the detectors were demonstrated to be very suitable for bio-medical application: they are linear in dose rate, stable and relatively fast, with a signal to noise ratio higher than 1000.