Assessment of small volume ionization chambers as reference dosimeters in high-energy photon beams

Physics in Medicine and Biology

Volumn 56, Issue 17, 2011, Pages 5637-5650

  Le Roy, M ^a   De Carlan, L ^a   Delaunay, F ^a   Donois, M ^a   Fournier, P ^a   Ostrowsky, A ^a   Vouillaume, A ^a   Bordy, J M ^a  

^a LABORATOIRE NATIONAL HENRI BECQUEREL   (France)

Author keywords

[No Author keywords available]

Indexed keywords

A-STABILITY; APPLIED VOLTAGES; EUROPEAN PROJECT; HIGH-ENERGY PHOTON BEAMS; IONIZATION CURRENT; IRRADIATION TIME; MEASURED CURRENTS; RADIATION FIELD;

DOSIMETRY; IONIZATION CHAMBERS; IONIZATION OF LIQUIDS; IRRADIATION; LEAKAGE CURRENTS; PHOTONS; RADIATION; STABILITY CRITERIA;

PHOTOIONIZATION;

ARTICLE; CALIBRATION; ELECTRICITY; EQUIPMENT; EQUIPMENT DESIGN; EVALUATION; GAMMA RADIATION; IMAGE QUALITY; INSTRUMENTATION; METHODOLOGY; PHOTON; RADIOMETRY; REPRODUCIBILITY; SENSITIVITY AND SPECIFICITY; STANDARD;

CALIBRATION; ELECTRICITY; EQUIPMENT DESIGN; EQUIPMENT FAILURE ANALYSIS; GAMMA RAYS; PHANTOMS, IMAGING; PHOTONS; RADIOMETRY; REFERENCE STANDARDS; REPRODUCIBILITY OF RESULTS; SENSITIVITY AND SPECIFICITY;

EID: 80052048140     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/56/17/011     Document Type: Article

References (17)

1. Agostinelli S, Garelli S, Piergentili M and Foppiano F 2008 Response to high-energy photons of PTW31014 PinPoint ion chamber with a central aluminum electrode Med. Phys. 35 3293-301 (Pubitemid 351904533)
2. Almond P, Biggs P, Coursey B, Hanson W, Huq M, Nath R and Rogers D 1999 AAPM's TG-51 protocol for clinical reference dosimetry of high-energy photon and electron beams Med. Phys. 26 1847-70 (Pubitemid 29442268)
3. Andreo P, Burns D, Hohlfeld K, Huq M, Kanai T, Laitano F, Smyth V and Vynckier S 2006 Absorbed dose determination in external beam radiotherapy: an international code of practice for dosimetry based on standards of absorbed dose to water IAEA Technical Report Series no 398 (Vienna: International Atomic Energy Agency)
4. de Carlan L, Baltès D, Bordy J-M, Daures J, Delaunay F, Ostrowsky A and Sorel S 2009 Traceability of absorbed dose in photon radiation therapy: from primary standard to patient treatment Accred. Qual. Assur. 14 613-8
5. DeBlois F, Zankowski C and Podgorsak E 2000 Saturation current and collection efficiency for ionization chambers in pulsed beams Med. Phys. 27 1146-55 (Pubitemid 30350028)
6. Derikum K 2002 Correcting for ion recombination effects in ionization chambers consistently in continuous and pulsed radiation Proc.Int. Symp. on Standards and Codes of Practice in Medical Radiation Dosimetry IAEA-CN-96-30
7. EBCT JRP7 External Beam Cancer Therapy http://www.ptb.de/EURAMET-JRP7/ (Public website of the EBCT project)
8. Gonzlez-Castão D, Hartmann G, Snchez-Doblado F, Gómez F, Kapsch R, Pena J and Capote R 2009 The determination of beam quality correction factors Phys. Med. Biol. 54 4723-41
9. Le Roy M, de Carlan L, Delaunay F, Gouriou J, Lourenço V, Ostrowsky A, Sorel S, Bordy J-M and Hachem S 2010 Establishment of references in terms of absorbed dose to water in small MV x-ray beams Proc. of ESTRO 29 Conf. (Barcelona, Spain), Radiother. Oncol. 96 (Suppl. 1) S515
10. Leybovich L, Sethi A and Dogan N 2003 Comparison of ionization chambers of various volumes for IMRT absolute dose verification Med. Phys. 30 119-23 (Pubitemid 36222846)
11. McEwen M 2010 Measurement of ionization chamber absorbed dose k factors in megavoltage photon beams Med. Phys. 37 2179-93
12. Muir B R and Rogers D W O 2010 Monte Carlo calculations of kQ, the beam quality conversion factor Med. Phys. 37 5939-50
13. Palmans H, Thomas R, Duane S, Sterpin E and Vynckier S 2010 Ion recombination for ionization chamber dosimetry in a helical tomotherapy unit Med. Phys. 37 2876-89
14. Shimono T, Koshida K, Nambu H, Matsubara K, Takahashi H and Okuda H 2009 Polarity effect in commercial ionization chambers used in photon beams with small fields Radiol. Phys. Technol. 2 97-103
15. Stasi M, Baiotto B, Barboni G and Scielzo G 2004 The behavior of several microionization chambers in small intensity modulated radiotherapy fields Med. Phys. 31 2792-5 (Pubitemid 39431006)
16. Takata N and Morishita Y 2011 Effect of radiation-induced charge accumulation on build-up cap on the signal current from an ionisation chamber Radiat. Prot. Dosim. 145 21-7
17. Zankowski C and Podgorsak E 1998 Determination of saturation charge and collection efficiency for ionization chambers in continuous beams Med. Phys. 25 908-15 (Pubitemid 28285767)