Perturbation factors for cylindrical ionization chambers in proton beams. Part I: Corrections for gradients

Physics in Medicine and Biology

Volumn 51, Issue 14, 2006, Pages 3483-3501

  Palmans, Hugo ^a  

^a NATIONAL PHYSICAL LABORATORY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; DATA REDUCTION; INVERSE PROBLEMS; ION BEAMS; MONTE CARLO METHODS; PERTURBATION TECHNIQUES; PROTON BEAMS;

CYLINDRICAL IONIZATION CHAMBERS; DOSE MEASUREMENTS; LINEAR GRADIENTS; RESPONSE CURVES;

IONIZATION CHAMBERS;

PROTON; WATER;

ACCURACY; ARTICLE; CALCULATION; IONIZATION CHAMBER; LITERATURE; MONTE CARLO METHOD; PRIORITY JOURNAL; PROTON RADIATION; RADIATION DEPTH DOSE; SIMULATION;

DOSE-RESPONSE RELATIONSHIP, RADIATION; EQUIPMENT DESIGN; IONS; MODELS, THEORETICAL; MONTE CARLO METHOD; PARTICLE ACCELERATORS; PHANTOMS, IMAGING; PROTONS; RADIOMETRY; RADIOTHERAPY DOSAGE; RADIOTHERAPY PLANNING, COMPUTER-ASSISTED; RADIOTHERAPY, HIGH-ENERGY;

EID: 33745812076     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/51/14/014     Document Type: Article

References (24)

1. Andreo P, Burns D T, Hohlfeld K, Huq M S, Kanai T, Laitano F, Smyth V G and Vynckier S 2000 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 398 (Vienna: IAEA)
2. Berger M J 1993 Proton Monte Carlo transport program PTRAN National Institute for Standards and Technology Report NISTIR 5113 (Gaithersburg, MD: NIST)
3. Bichsel H 1995 Calculated Bragg curves for ionization chambers of different shapes Med. Phys. 22 1721-6
4. Hartmann G H, Jäkel O, Heeg P, Karger C P and Krießbach A 1999 Determination of water absorbed dose in a carbon ion beam using thimble ionization chambers Phys. Med. Biol. 44 1193-206
5. ICRU 1993 Stopping powers and ranges for protons and alpha particles International Commission on Radiation Units and Measurements Report 49 (Bethesda, MD: ICRU)
6. ICRU 1998 Clinical proton dosimetry part I: beam production, beam delivery and measurement of absorbed dose International Commission on Radiation Units and Measurements Report 59 (Bethesda, MD: ICRU)
7. Jäkel O, Hartmann G H, Heeg P and Schardt D 2000 Effective point of measurement of cylindrical ionization chambers for heavy charged particles Phys. Med. Biol. 45 599-607
8. Kacperek A, Egger E, Barone Tonghi L, Cuttone G, Raffaele L, Rovelli A, Sabini M G, Tabaralli de Fatis P, Luraschi F and Marzoli L 2002 Proton dosimetry intercomparison using parallel plate ion chambers in a proton eye therapy beam Proc. Int. Symp. on Standards and Codes of Practice in Medical Radiation Dosimetry ((Vienna, 25-28 November 2002) IAEA-CN-96-113) (Vienna: IAEA)
9. Kanai T, Fukumura A, Kusano Y, Shimbo M and Nishio T 2004 Cross-calibration of ionization chambers in proton and carbon beams Phys. Med. Biol. 49 771-81
10. Lyman J T et al 1986 Protocol for heavy charged-particle therapy beam dosimetry. A report of Task group 20 Radiation Therapy Committee AAPM Report 16 (New York: AIP)
11. Mobit P N, Sandison G A and Bloch C 2000 Depth ionization curves for an unmodulated proton beam measured with different ionization chambers Med. Phys. 27 2780-7
12. Palmans H 2000 Analytical expressions for the determination of the effective water depth of an ionization chamber for clinical proton beam dosimetry CD-ROM Proc. of the World Congress on Medical Physics and Biomedical Engineering (Chicago, 23-28 July 2000)
13. Palmans H 2004 PTRAN, a Monte Carlo code for transport simulation of 50 to 250 MeV protons & McPTRAN.MEDIA, McPTRAN.CAVITY and McPTRAN.RZ, a series of derived codes Lecture Notes for the NPL Workshop on Monte Carlo Codes (17-18 March 2004) (National Physical Laboratory) (http://www.npl.co.uk/ionrad/ training/montecarlo/workshop/ptran_notes.pdf)
14. Palmans H 2006 Analytical models for the determination of the effective water depth of an ionization chamber in a proton beam and extension for application in the Bragg peak NPL Report DQL-RD-002 (Teddington: National Physical Laboratory)
15. Palmans H and Verhaegen F 1997 Calculated depth dose distributions for proton beams in some low-Z materials Phys. Med. Biol. 42 1175-83
16. Palmans H and Verhaegen F 1998 Monte Carlo study of fluence perturbation effects on cavity dose response in clinical proton beams Phys. Med. Biol. 43 65-89
17. Palmans H and Verhaegen F 2000 On the effective point of measurement of cylindrical ionization chambers for proton beams and other heavy charged particle beams Phys. Med. Biol. 45 L20-L22
18. Palmans H, Verhaegen F, Denis J-M and Vynckier S 2002 Dosimetry using plane-parallel ionization chambers in a 75 MeV clinical proton beam Phys. Med. Biol. 47 2895-905
19. cel correction factors for ionization chambers in low-energy clinical proton beams Phys. Med. Biol. 46 1187-204
20. Ulmer W and Kaissl W 2003 The inverse problem of a Gaussian convolution and its application to the finite size of the measurement chambers/detectors in photon and proton dosimetry Phys. Med. Biol. 48 707-27
21. Vatnitsky S, Moyers M and Vatnitsky A S 2002 Parallel plate and thimble ionization chamber calibrations in proton beams using the IAEA TRS 398 and ICRU 59 recommendations Proc. Int. Symp. on Standards and Codes of Practice in Medical Radiation Dosimetry (Vienna, 25-28 November 2002) IAEA-CN-96-116P (Vienna: IAEA)
22. Verhaegen F and Palmans H 2001 A systematic Monte Carlo study of secondary electron fluence perturbation in clinical proton beams (70-250 MeV) for cylindrical and spherical ion chambers Med. Phys. 28 2088-95
23. Vynckier S, Bonnett D E and Jones D T L 1991 Code of practice for clinical proton dosimetry Radiother. Oncol. 20 53-63
24. Vynckier S, Bonnett D E and Jones D T L 1994 Supplement to the code of practice for clinical proton dosimetry Radiother. Oncol. 32 174-9