Build-up modification of commercial diodes for entrance dose measurements in 'higher energy' photon beams

Radiotherapy and Oncology

Volumn 51, Issue 3, 1999, Pages 249-256

  Georg, Dietmar ^a   De Ost, Bie ^b   Hoornaert, Marie Thérèse ^b   Pilette, Pierre ^b   Van Dam, Jan ^b   Van Dycke, Michel ^b   Huyskens, Dominique ^a  

^a UNIVERSITY HOSPITALS LEUVEN   (Belgium)

^b Working Group 'Radiology' of the Belgian Hospital Physicists Association   (Belgium)

Author keywords

Electron contamination; Entrance dose measurements; In vivo dosimetry

Indexed keywords

COPPER; IRON; LEAD;

ARTICLE; BEAM THERAPY; DIODE; DOSIMETRY; ENERGY METABOLISM; GEOMETRY; PRIORITY JOURNAL; RADIATION FIELD;

DOSE-RESPONSE RELATIONSHIP, RADIATION; HUMANS; PARTICLE ACCELERATORS; RADIOMETRY; RADIOTHERAPY PLANNING, COMPUTER-ASSISTED; RADIOTHERAPY, HIGH-ENERGY; REFERENCE VALUES;

EID: 0033010139     PISSN: 01678140     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0167-8140(99)00058-4     Document Type: Article

References (38)

1. Alecu R, Feldmeier J, Alecu M. Dose perturbations due to in-vivo dosimetry with diodes. Radiother. Oncol. 1997;42:289-291.
2. Beauvais H, Bridier A, Dutreix A. Characteristics of contaminating electrons in high energy photon beams. Radiother. Oncol. 1993;29:308-316.
3. Bjarngard BE, Vadash P, Zhu T. Doses near the surface in high energy x-ray beams. Med. Phys. 1995;22:465-468.
4. Ding W, Verstraete JE, Van Dam J. Performance of new Scanditronix diodes for in-vivo dosimetry. Acta Oncol. 1995;34:268-270.
5. Dutreix A. When and how can we improve precision in radiotherapy? Radiother. Oncol. 1984;2:275-292.
6. Dutreix A, Bridier A, Svensson H, Shaw J, Bjarngard BE. Monitor unit calculation and verification for therapy machines. ESTRO Booklet no. 3, Leuven, Belgium: Galant, 1997.
7. Essers M, Lanson JH, Mijnheer BJ. In-vivo dosimetry during conformal therapy of prostatic cancer. Radiother. Oncol. 1993;29:271-279.
8. Essers M, Keus R, Lanson JH, Mijnheer BJ. Dosimetric control of conformal treatment of parotid gland tumours. Radiother. Oncol. 1994;32:154-162.
9. Essers M, Mijnheer BJ. In-vivo dosimetry during external photon beam radiotherapy: current clinical practice. Int. J. Radiat. Oncol. Biol. Phys. 1999;.
10. Frontela DP, Curran J, Yaparpalvi R, Vikram B. Customization of a radiation managment system to support in-vivo patient dosimetry using diodes. Med. Phys. 1996;23:1425-1429.
11. Frontela DP, Yaparpalvi R, Chui Ch-S, Briot E. The use of diode dosimetry in quality improvement of patient care in radiation dosimetry. Med. Dosim. 1996;21:235-241.
12. Garavaglia G, Johansonn KA, Leunens G, Mijnheer BJ. The role of in-vivo dosimetry. Radiother. Oncol. 1993;29:281-282.
13. Georg D, Briot E, Julia F, Huyskens D, Wolff U, Dutreix A. Dosimetric comparison of an integrated multileaf collimator vs. a conventional collimator. Phys. Med. Biol. 1997;42:2285-2303.
14. Grusell E, Rikner G. Linearity with dose rate of low resistivity p-type silicon semiconductor detectors. Phys. Med. Biol. 1993;36:785-792.
15. Heukelom S, Lanson JH, Mijnheer BJ. Comparison of entrance and exit dose measurements using ionization chambers and silicon diodes. Phys. Med. Biol. 1991;36:47-59.
16. Heukelom S, Lanson JH, Mijnheer BJ. In-vivo dosimetry during pelvic treatment. Radiother. Oncol. 1992;22:111-120.
17. Heukelom S, Lanson JH, van Tienhoven G, Mijnheer BJ. In-vivo dosimetry during tangential breast treatment. Radiother. Oncol. 1991;22:269-279.
18. Heukelom S, Lanson JH, Mijnheer BJ. Quality assurance of the simultaneous boost technique for prostate cancer: dosimetric aspects. Radiother. Oncol. 1994;30:74-82.
19. Huyskens D, Van Dam J, Dutreix A. Midplane dose determination using in-vivo measurements in combination with portal films. Phys. Med. Biol. 1994;39:1089-1101.
20. IAEA Absorbed dose determination in photon and electron beams. IAEA Technical Reports Series No. 277, 1987.
21. Jornet N, Ribas M, Eudaldo T. Calibration of semiconductor detectors for dose assess in total body irradiation. Radiother. Oncol. 1996;38:247-251.
22. Jursinic PA, Machie TR. Characteristics of secondary electrons produced by 6, 10 and 24 MV x-ray beams. Phys. Med. Biol. 1996;41:1499-1509.
23. Leunens G, Van Dam J, Dutreix A, van der Schueren E. Quality assurance in radiotherapy by in-vivo dosimetry. 1. Entrance dose measurements, a reliable procedure. Radiother. Oncol. 1990;17: 141-151.
24. Leunens G, Van Dam J, Dutreix A, VanderSchueren E. Quality assurance in radiotherapy by in-vivo dosimetry. 2. Determination of the target absorbed dose. Radiother. Oncol. 1990;19:73-87.
25. Li Ch, Lamel LS, Tom D. A patient dose verification program using diode detectors. Med. Dosim. 1995;20:209-214.
26. Loncol Th, Greffe JL, Vynckier S, Scalliet P. Entrance and exit dose measurements with semiconductor and thermoluminescent dosimeters: a comparison of methods and in-vivo results. Radiother. Oncol. 1996;41:179-187.
27. Meiler RJ, Podgorsak MB. Characterization of the response of commercial diode detectors used for in-vivo dosimetry. Med. Dosim. 1997;22:31-37.
28. Nilsson B. Electron contamination from different materials in high energy photon beams. Phys. Med. Biol. 1985;30:139-151.
29. Nilsson B, Brahme A. Electron contamination from photon beam collimators. Radiother. Oncol. 1986;5:235-244.
30. Nilsson B, Ruden BI, Sorcini B. Characterization of silicon diodes as patient dosimeters in external radiation therapy. Radiother. Oncol. 1988;11:279-288.
31. Rikner G, Grusell E. Effects of radiation damage on p-type silicon detectors. Phys. Med. Biol. 1983;28:1261-1267.
32. Rikner G, Grusell E. General specifications for silicon semiconductors for use in radiation therapy. Phys. Med. Biol. 1987;32:1109-1117.
33. Rikner G, Grusell E. Patient dose measurements in photon fields by means of silicon semiconductor detectors. Med. Phys. 1987;14:870-873.
34. Sixel KE, Podgorsak EB. Build-up region of dose maximum of megavoltage X-ray beams. Med. Phys. 1994;21:411-416.
35. Sjorgen R, Karlsson M. Electron contamination in clinical high energy photon beams. Med. Phys. 1996;23:1873-1881.
36. Van Dam J, Marinello G. Methods for in-vivo dosimetry in external radiotherapy. ESTRO Booklet No. 1, Leuven, Belgium: Garant, 1994.
37. Van Gasteren JJM, Heukelom S, Van Kleffens HJ, van der Laarse R, Venselaar JLM, Westermann CF. The determination of phantom and collimator scatter components of the output of mega-voltage photon beams: measurement of the collimator scatter part with a beam-coaxial narrow cylindrical phantom. Radiother. Oncol. 1991;20:250-257.
38. Zhu TC, Palta JR. Electron contamination in 8 and 18 MV photon beams. Med. Phys. 1998;25:12-19.