Characterization of a new unshielded diode for small field dosimetry under flattening filter free beams

Giacomo Reggiori; Pietro Mancosu; Natalka Suchowerska; Francesca Lobefalo; Antonella Stravato; Stefano Tomatis; Marta Scorsetti

doi:10.1016/j.ejmp.2016.02.004

Characterization of a new unshielded diode for small field dosimetry under flattening filter free beams

Giacomo Reggiori, Pietro Mancosu, Natalka Suchowerska, Francesca Lobefalo, Antonella Stravato, Stefano Tomatis, Marta Scorsetti

Istituto Clinico Humanitas

Research output: Contribution to journal › Article › peer-review

Abstract

Purpose: To characterize the performance of a new unshielded silicon diode (Razor-IBA) for dose measurements in small flattening filter free beams. Methods: The Razor has an active volume of 0.6 mm in diameter and 20 μm in length. The detector response stability in measured dose, dose rate, dose per pulse, and dark current were evaluated. The detector response in square fields (0.6-5.0 cm) was determined using PDD curves, axial beam profiles and output ratios. The performances were compared to that of the previously available SFD-IBA and PFD-IBA diodes. Results and discussion: The Razor short term stability relative to the SFD was much improved (2 (

Original language	English
Pages (from-to)	408-413
Number of pages	6
Journal	Physica Medica
Volume	32
Issue number	2
DOIs	https://doi.org/10.1016/j.ejmp.2016.02.004
Publication status	Published - Feb 1 2016

Keywords

Radiotherapy
Razor
Small field dosimetry
Unshielded diode

ASJC Scopus subject areas

Biophysics
Radiology Nuclear Medicine and imaging
Physics and Astronomy(all)

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10.1016/j.ejmp.2016.02.004

Cite this

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abstract = "Purpose: To characterize the performance of a new unshielded silicon diode (Razor-IBA) for dose measurements in small flattening filter free beams. Methods: The Razor has an active volume of 0.6 mm in diameter and 20 μm in length. The detector response stability in measured dose, dose rate, dose per pulse, and dark current were evaluated. The detector response in square fields (0.6-5.0 cm) was determined using PDD curves, axial beam profiles and output ratios. The performances were compared to that of the previously available SFD-IBA and PFD-IBA diodes. Results and discussion: The Razor short term stability relative to the SFD was much improved (2 (",

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T1 - Characterization of a new unshielded diode for small field dosimetry under flattening filter free beams

AU - Reggiori, Giacomo

AU - Mancosu, Pietro

AU - Suchowerska, Natalka

AU - Lobefalo, Francesca

AU - Stravato, Antonella

AU - Tomatis, Stefano

AU - Scorsetti, Marta

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Purpose: To characterize the performance of a new unshielded silicon diode (Razor-IBA) for dose measurements in small flattening filter free beams. Methods: The Razor has an active volume of 0.6 mm in diameter and 20 μm in length. The detector response stability in measured dose, dose rate, dose per pulse, and dark current were evaluated. The detector response in square fields (0.6-5.0 cm) was determined using PDD curves, axial beam profiles and output ratios. The performances were compared to that of the previously available SFD-IBA and PFD-IBA diodes. Results and discussion: The Razor short term stability relative to the SFD was much improved (2 (

AB - Purpose: To characterize the performance of a new unshielded silicon diode (Razor-IBA) for dose measurements in small flattening filter free beams. Methods: The Razor has an active volume of 0.6 mm in diameter and 20 μm in length. The detector response stability in measured dose, dose rate, dose per pulse, and dark current were evaluated. The detector response in square fields (0.6-5.0 cm) was determined using PDD curves, axial beam profiles and output ratios. The performances were compared to that of the previously available SFD-IBA and PFD-IBA diodes. Results and discussion: The Razor short term stability relative to the SFD was much improved (2 (

KW - Radiotherapy

KW - Razor

KW - Small field dosimetry

KW - Unshielded diode

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Characterization of a new unshielded diode for small field dosimetry under flattening filter free beams

Abstract

Keywords

ASJC Scopus subject areas

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