Single crystal chemical vapor deposited diamond detectors for intensity-modulated radiation therapy applications

Journal Article · Thu Oct 15 00:00:00 EDT 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3247058· OSTI ID:21361894

Rebisz-Pomorska, M; Tromson, D; Bergonzo, P ^[1]; Isambert, A ^[2]; Marczewska, B ^[3]

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1. CEA, LIST, Diamond Sensors Laboratory, F-91191 Gif-sur-Yvette (France)
2. Institut Gustave Roussy (IGR), 94805 Villejuif (France)
3. Institute of Nuclear Physics, Polish Academy of Sciences (IFJ PAN), 31-342 Krakow (Poland)

We report here on first intensity-modulated radiation therapy (IMRT) clinical tests performed at the Gustave Roussy Institute in France using one small (0.117 mm{sup 3}) synthetic single crystal diamond detector (SCDD). We report the comparison between the point doses evaluated with our detector, with a PTW semiflex air ionization chamber (0.125 cm{sup 3}) and calculated with the treatment planning system (TPS), respectively. The obtained results show a maximum difference of 2.3% for the diamond detector and of 4.6% for the ionization chamber, as compared with the TPS calculations. These very promising results show the potentiality of chemical vapor deposited SCDD for dosimetry of IMRT fields and opens up the field for diamond dosimeters toward novel applications such as very small beam monitoring.

• OSTI ID: 21361894
• Journal Information: Journal of Applied Physics, Vol. 106, Issue 8; Other Information: DOI: 10.1063/1.3247058; (c) 2009 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
36 MATERIALS SCIENCE
AIR
BEAM MONITORING
CHEMICAL VAPOR DEPOSITION
DIAMONDS
DOSEMETERS
DOSIMETRY
IONIZATION CHAMBERS
MONOCRYSTALS
RADIOTHERAPY
SOLID SCINTILLATION DETECTORS
CARBON
CHEMICAL COATING
CRYSTALS
DEPOSITION
ELEMENTS
FLUIDS
GASES
MEASURING INSTRUMENTS
MEDICINE
MINERALS
MONITORING
NONMETALS
NUCLEAR MEDICINE
RADIATION DETECTORS
RADIOLOGY
SCINTILLATION COUNTERS
SURFACE COATING
THERAPY