Abstract
The Australasian College of Physical Scientists and Engineers in Medicine (ACPSEM) Radiation Oncology Specialty Group (ROSG) formed a series of working groups to develop recommendations for guidance of radiation oncology medical physics practice within the Australasian setting. These recommendations provide a standard for safe work practices and quality control. It is the responsibility of the medical physicist to ensure that locally available equipment and procedures are sufficiently sensitive to establish compliance. The recommendations are endorsed by the ROSG, have been subject to independent expert reviews and have also been approved by the ACPSEM Council. For the Australian audience, these recommendations should be read in conjunction with the Tripartite Radiation Oncology Practice Standards and should be read in conjunction with relevant national, state or territory legislation which take precedence over the ACPSEM publication Radiation Oncology Reform Implementation Committee (RORIC) Quality Working Group, RANZCR, 2011a; Kron et al. Clin Oncol 27(6):325–329, 2015; Radiation Oncology Reform Implementation Committee (RORIC) Quality Working Group, RANZCR, 2018a, b).
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Abbreviations
- AAPM:
-
American Association of Physicists in Medicine
- ACPSEM:
-
Australasian College of Physical Scientists and Engineers in Medicine
- AF:
-
Applicator factor
- ARPANSA:
-
Australian Radiation Protection and Nuclear Safety Agency
- BJR:
-
British Journal of Radiology
- BSF:
-
Backscatter factor
- CAPCA:
-
Canadian Association of Provincial Cancer Agencies
- CCTV:
-
Closed circuit television
- COMP:
-
Canadian Organization of Medical Physicists
- FSD:
-
Focus-surface distance
- Gy:
-
Gray, unit of absorbed dose (J/kg)
- HVL:
-
Half value layer
- IAEA TRS:
-
International Atomic Energy Agency Technical Reports Series
- IPEMB:
-
Institution of Physics and Engineering in Medicine and Biology
- ISL:
-
Inverse square law
- NRL:
-
National Radiation Laboratory (now NCRS)
- NCRS:
-
National Centre for Radiation Science
- OSLD:
-
Optically Stimulated Luminescent Dosimeter
- PDD:
-
Percentage depth dose
- QA:
-
Quality assurance
- ROF:
-
Relative output factor
- ROMP:
-
Radiation Oncology Medical Physicist
- ROSG:
-
Radiation Oncology Specialty Group
- SCD:
-
Source-chamber distance
- SSD:
-
Source-surface distance
- TG:
-
Task group
- TLD:
-
Thermoluminescent dosimetry
References
Caccialanza M, Piccinno R, Percivalle S, Rozza M (2009) Radiotherapy of carcinomas of the skin overlying the cartilage of the nose: our experience in 671 lesions. J Eur Acad Dermatol Venereol 23(9):1044–1049
Poen JC (1999) Clinical applications of orthovoltage radiotherapy: tumours of the skin, endorectal therapy and intraoperative radiation therapy. Kilovoltage X-ray beam dosimetry for radiotherapy and radiobiology. Medical Physics Publishing, Madison, Wisconsin
Locke J, Karimpour S, Young G, Lockett MA, Perez CA (2001) Radiotherapy for epithelial skin cancer. Int J Radiat Oncol Biol Phys 51(3):748–755
Amdur RJ, Kalbaugh KJ, Ewald LM, Parsons JT, Mendenhall WM, Bova FJ, Million RR (1992) Radiation therapy for skin cancer near the eye: kilovoltage X-rays versus electrons. Int J Radiat Oncol Biol Phys 23(4):769–779
Tracey E, Ling Li L, Baker D, Dobrovic A, Bishop J (2007) Cancer in New South Wales: incidence and mortality 2007. Cancer Institute NSW, Eveleigh
Eaton DJ, Duck S (2010) Dosimetry measurements with an intra-operative X-ray device. Phys Med Biol 55(12):N359–N369
Eaton DJ, Barber E, Ferguson L, Mark Simpson G, Collis CH (2012) Radiotherapy treatment of keloid scars with a kilovoltage X-ray parallel pair. Radiother Oncol 102(3):421–423. https://doi.org/10.1016/j.radonc.2011.08.002
Doornbos JF, Stoffel TJ, Hass AC, Hussey DH, Vigliotti AP, Wen BC, Zahra MK, Sundeen V (1990) The role of kilovoltage irradiation in the treatment of keloids. Int J Radiat Oncol Biol Phys 18(4):833–839
Li XA, Ma CM, Salhani D, Agboola O (1998) Dosimetric evaluation of a widely used kilovoltage X-ray unit for endocavitary radiotherapy. Med Phys 25(8):1464–1471
McCullough EC (1990) Selection of techniques for orthovoltage radiation therapy. Int J Radiat Oncol Biol Phys 18(5):1237–1238
Jepsen ME, Gniadecki R (2015) Treatment of primary cutaneous anaplastic large cell lymphoma with superficial X-rays. Dermatol Rep 7(1):5888
Reichl B, Block A, Schäfer U, Bert C, Müller R, Jung H, Rödel F (2015) DEGRO practical guidelines for radiotherapy of non-malignant disorders. Strahlenther Onkol 191(9):701–709
Ebert MA, Carruthers B, Lanzon PJ, Haworth A, Clarke J, Caswell NM, Siddiqui SA (2002) Dosimetry of a low-kV intra-operative X-ray source using basic analytical beam models. Australas Phys Eng Sci Med 25(3):119–123
Schneider F, Fuchs H, Lorenz F, Steil V, Ziglio F, Kraus-Tiefenbacher U, Lohr F, Wenz F (2009) A novel device for intravaginal electronic brachytherapy. Int J Radiat Oncol Biol Phys 74(4):1298–1305
Hill R, Healy B, Holloway L, Kuncic Z, Thwaites D, Baldock C (2014) Advances in kilovoltage X-ray beam dosimetry. Phys Med Biol 59(6):R183
Dunscombe P, Johnson H, Arsenault C, Mawko G, Bissonnette JP, Seuntjens J (2007) Development of quality control standards for radiation therapy equipment in Canada. J Appl Clin Med Phys 8(1):108–116
Van Dyk J (ed) (1999) The modern technology of radiation oncology. Medical Physics Publishing, Madison, Wisconsin
IAEA (2008) Setting up a radiotherapy programme: clinical, medical physics, radiation protection and safety aspects. International Atomic Energy Agency, Vienna
Australia Standards (1994) Medical electrical equipment—particular requirements for safety—therapeutic X-ray generators 3200.2.8:1994 Standards Australia. Sydney
Australia Standards (1994) Safety signs for the occupational environment AS 1319–1994 Standards Australia. Sydney
Radiation Oncology Reform Implementation Committee (RORIC) Quality Working Group (2011) Tripartite radiation oncology practice standards. RANZCR, Sydney
ARPANSA (2008) Code of practice for radiation protection in the medical applications of ionizing radiation. Radiation protection series no. 14. Australian Radiation Protection and Nuclear Safety Agency, Miranda, NSW
ARPANSA (2008) Safety guide for radiation protection in radiotherapy. Radiation protection series no. 14.3. Australian Radiation Protection and Nuclear Safety Agency, Miranda, NSW
McGinley PH (2002) Shielding techniques for radiation oncology facilities, 2nd edn. Medical Physics Publishing, Madison, Wisconsin
NCRP (2005) Structural shielding design and evaluation for megavoltage X- and gamma-ray radiotherapy facilities. National Council on Radiation Protection and Measurements (NCRP), Washington, DC
IAEA (2006) Radiation protection in the design of radiotherapy facilities IAEA safety report series no. 47. International Atomic Energy Agency, Vienna
Standards Australia (2015) Medical electrical equipment Particular requirements for the basic safety and essential performance of therapeutic X-ray equipment operating in the range 10 kV to 1 MV. AS/NZS IEC 60601.2.8:2015 Standards Australia, Sydney
Furstoss C (2018) COMP report: CPQR technical quality control guidelines for kilovoltage X ray radiotherapy machines. J Appl Clin Med Phys 19(2):18–21. https://doi.org/10.1002/acm2.12228
Santos EF, Evans S, Ford EC, Gaiser JE, Hayden SE, Huffman KE, Johnson JL, Mechalakos JG, Stern RL, Terezakis S (2015) Medical physics practice guideline 4. A: development, implementation, use and maintenance of safety checklists. J Appl Clin Med Phys 16(3):37–59
Radiation Oncology Reform Implementation Committee (RORIC) Quality Working Group (2011) Tripartite radiation oncology practice standards supplementary guide. RANZCR, Sydney
Radiation Oncology Reform Implementation Committee (RORIC) Quality Working Group (2018) Radiation oncology practice standards part A: fundamentals. RANZCR, Sydney
Radiation Oncology Reform Implementation Committee (RORIC) Quality Working Group (2018) Radiation oncology practice standards part B: guidelines, RANZCR, Sydney
Abdel-Rahman W, Podgorsak EB (2010) Energy transfer and energy absorption in photon interactions with matter revisited: a step-by-step illustrated approach. Radiat Phys Chem 79(5):552–566
Ma CM, Coffey CW, DeWerd LA, Liu C, Nath R, Seltzer SM, Seuntjens JP (2001) AAPM protocol for 40–300 kV X-ray beam dosimetry in radiotherapy and radiobiology. Med Phys 28(6):868–893
Williams JR, Thwaites DI (2000) Radiotherapy physics in practice. Oxford University Press, Oxford
Baldwin Z, Fitchew R (2014) The influence of focal spot size, shape, emission profile and position on field coverage in a Gulmay D3300 Kilovoltage X-ray therapy unit. Australas Phys Eng Sci Med 37(3):515–523
Oliveira A, Fartaria M, Cardoso J, Santos L, Oliveira C, Pereira M, Alves J (2015) The determination of the focal spot size of an X-ray tube from the radiation beam profile. Radiat Meas 82:138–145
Heales JC, Harrett A, Blake S (1998) Timer error and beam quality variation during “ramp-up” of a superficial X-ray therapy unit. Br J Radiol 71:1306–1309
Aspradakis MM, Zucchetti P (2015) Acceptance, commissioning and clinical use of the WOmed T-200 kilovoltage X-ray therapy unit. Br J Radiol 88(1055):20150001
Butson MJ, Mathur J, Metcalfe PE (1995) Dose characteristics of a new 300 kVp orthovoltage machine. Australas Phys Eng Sci Med 18(3):133–138
Jurado D, Eudaldo T, Carrasco P, Jornet N, Ruiz A, Ribas M (2005) Pantak Therapax SXT 150: performance assessment and dose determination using IAEA TRS-398 protocol. Br J Radiol 78(932):721–732
Palmer AL, Pearson M, Whittard P, McHugh KE, Eaton DJ (2016) Current status of kilovoltage (kV) radiotherapy in the UK: installed equipment, clinical workload, physics quality control and radiation dosimetry. Br J Radiol 89:20160641
Steenbeke F, Gevaert T, Tournel K, Engels B, Verellen D, Storme G, De Ridder M (2015) Quality assurance of a 50-kV radiotherapy unit using EBT3 GafChromic Film A Feasibility Study. Technol Cancer Res Treat 15:163–170
Sheu R-D, Powers A, Lo Y-C (2015) Commissioning a 50–100 kV X-ray unit for skin cancer treatment. J Appl Clin Med Phys 16:161–174
Aukett RJ, Burns JE, Greener AG, Harrison RM, Moretti C, Nahum AE, Rosser KE (2005) Addendum to the IPEMB code of practice for the determination of absorbed dose for X-rays below 300 kV generating potential (0.035 mm Al-4 mm Cu HVL). Phys Med Biol 50(12):2739–2748
Klevenhagen SC, Aukett RJ, Harrison RM, Moretti C, Nahum AE, Rosser KE (1996) The IPEMB code of practice for the determination of absorbed dose for X-rays below 300 kV generating potential (0.035 mm Al-4 mm Cu HVL; 10–300 kV generating potential). Phys Med Biol 41(12):2605–2625
Nederlandse Commissie voor Stralingsdosimetrie (1997) NCS Report 10, Dosimetry for low and medium energy X-rays: a code of practice in radiotherapy and radiobiology. Netherlands Commission on Radiation Dosimetry, Delft
Andreo P, Burns DT, Hohlfield K, Huq MS, Kanai T, Laitano F, Smyth V, 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, technical report series no. 398. International Atomic Energy Agency, Vienna
Mayles P (2007) Kilovoltage X-rays. In: Mayles P, Nahum AE, Rosenwald J (eds) Handbook of radiotherapy physics. CRC Press, Boca Raton, pp 439–449
De Prez L, de Pooter J (2008) The new NMi orthovolt X-rays absorbed dose to water primary standard based on water calorimetry. Phys Med Biol 53(13):3531
Krauss A, Büermann L, Kramer HM, Selbach HJ (2012) Calorimetric determination of the absorbed dose to water for medium-energy X-rays with generating voltages from 70 to 280 kV. Phys Med Biol 57(19):6245
Seuntjens J, Duane S (2009) Photon absorbed dose standards. Metrologia 46(2):S39
Pinto M, Pimpinella M, Quini M, D’Arienzo M, Astefanoaei I, Loreti S, Guerra A (2016) A graphite calorimeter for absolute measurements of absorbed dose to water: application in medium-energy X-ray filtered beams. Phys Med Biol 61(4):1738
Ma CM, Li XA, Seuntjens JP (1998) Study of dosimetry consistency for kilovoltage X-ray beams. Med Phys 25(12):2376–2384
Jhala E, Steer B, Laban J, Greig L (2009) Issues encountered with kilovoltage X-ray reference dosimetry when changing codes of practice from TRS 277 to TRS 398. Australas Phys Eng Sci Med 32(1):11–15
Munck Af Rosenschold P, Nilsson P, Knoos T (2008) Kilovoltage X-ray dosimetry-an experimental comparison between different dosimetry protocols. Phys Med Biol 53(16):4431–4442
Peixoto JG, Andreo P (2000) Determination of absorbed dose to water in reference conditions for radiotherapy kilovoltage X-rays between 10 and 300 kV: a comparison of the data in the IAEA, IPEMB, DIN and NCS dosimetry protocols. Phys Med Biol 45(3):563–575
Yoo S, Grimm D, Zhu R, Jursinic P, Lopez F, Rownd J, Gillin M (2002) Clinical implementation of AAPM TG61 protocol for kilovoltage X-ray beam dosimetry. Med Phys 29(10):2269–2273
Burns DT, Büermann L (2009) Free-air ionization chambers. Metrologia 46(2):S9–S23
Lye JE, Butler DJ, Webb DV (2010) Monte Carlo correction factors for the ARPANSA kilovoltage free-air chambers and the effect of moving the limiting aperture. Metrologia 47(1):11–20
Seuntjens J, Thierens H, Van der Plaetsen A, Segaert O (1988) Determination of absorbed dose to water with ionisation chambers calibrated in free air for medium-energy X-rays. Phys Med Biol 33(10):1171
Johns HE, Cunningham JR (1983) The physics of radiology. Charles C. Thomas, Springfield, Illinois
Hill RF, Healy B, Holloway L, Kuncic Z, Thwaites D, Baldock C (2014) Advances in kilovoltage X-ray beam dosimetry. Phys Med Biol 59(6):R183
Baines J, Sim L (2014) The variation of HVL with focal spot to chamber distance as a function of beam quality for the Pantak Therapax 150 X-ray unit and the implications on dose to water determination using the IPEMB code of practice. Australas Phys Eng Sci Med 37(3):559–566
Burton NLA, Brimelow J, Welsh AD (2008) A regional audit of kilovoltage X-rays: a single centre approach. Brit J Radiol 81(965):422–426
Nisbet A, Thwaites DI, Sheridan ME (1998) A dosimetric intercomparison of kilovoltage X-rays, megavoltage photons and electrons in the Republic of Ireland. Radiother Oncol 48(1):95–101
Mayles P, Nahum AE, Rosenwald J (2007) Kilovoltage X-rays. Handbook of radiotherapy physics. CRC Press, Boca Raton, Florida
Nahum AE (1999) kV X-ray dosimetry: current status and future challenges. In: Ma CM, Seuntjens JP (eds) Kilovoltage X-ray beam dosimetry for radiotherapy and radiobiology. Medical Physics Publishing, Madison, Wisconsin, pp 7–26
Klevenhagen SC, D’Souza D, I. B (1991) Complications in low energy X-ray dosimetry caused by electron contaminations. Phys Med Biol 36(8):1111–1116
Healy BJ, Gibbs A, Murry RL, Prunster JE, Nitschke KN (2005) Output factor measurements for a kilovoltage X-ray therapy unit. Australas Phys Eng Sci Med 28(2):115–121
Chica U, Anguiano M, Lallena AM (2008) Study of the formalism used to determine the absorbed dose for low-energy X-ray beams. Phys Med Biol 53(23):6963–6977
Evans PA, Moloney AJ, Mountford PJ (2001) Performance assessment of the Gulmay D3300 kilovoltage X-ray therapy unit. Brit J Radiol 74(882):537–547
Hill R, Mo Z, Haque M, Baldock C (2009) An evaluation of ionization chambers for the relative dosimetry of kilovoltage X-ray beams. Med Phys 36(9):3971–3981
Hill R, Holloway L, Baldock C (2005) A dosimetric evaluation of water equivalent phantoms for kilovoltage X-ray beams. Phys Med Biol 50(21):N331–N344
Perrin BA, Whitehurst P, Cooper P, Hounsell AR (2001) The measurement of kappach factors for application with the IPEMB very low energy dosimetry protocol. Phys Med Biol 46(7):1985–1995
Dowdell S, Tyler M, McNamara J, Sloan K, Ceylan A, Rinks A (2016) Potential errors in relative dose measurements in kilovoltage photon beams due to polarity effects in plane-parallel ionisation chambers. Phys Med Biol 61(23):8395
Hugtenburg RP, Johnston K, Chalmers GJ, Beddoe AH (2001) Application of diamond detectors to the dosimetry of 45 and 100 kvp therapy beams: comparison with a parallel-plate ionization chamber and Monte Carlo. Phys Med Biol 46(9):2489–2501
Livingstone J, Stevenson AW, Butler DJ, Häusermann D, Adam J-F (2016) Characterization of a synthetic single crystal diamond detector for dosimetry in spatially fractionated synchrotron X-ray fields. Med Phys 43(7):4283–4293
Seuntjens J, Aalbers AHL, Grimbergen TWM, Mijnheer BJ, Thierens H, Van Dam J, Wittkamper FW, Zoetelief J, Piessens M, Piret P (1999) Suitability of diamond detectors to measure central axis depth kerma curves for low- and medium-energy X-rays. In: Ma CM, Seuntjens JP (eds) Kilovoltage X-ray beam dosimetry for radiotherapy and radiobiology. Medical Physics Publishing, Madison, Wisconsin, pp 227–238
Gill S, Hill R (2013) A study on the use of Gafchromic™ EBT3 film for output factor measurements in kilovoltage X-ray beams. Australas Phys Eng Sci Med 36(4):465–471
Chica U, Florez G, Anguiano M, Lallena AM (2010) A simple analytical expression to calculate the backscatter factor for low energy X-ray beams. Phys Med 27:75–80
British Journal of Radiology: Supplement 25 (1996) Central axis depth dose data for use in radiotherapy. British Institute of Radiology, London
Lee CH, Chan KK (2000) Electron contamination from the lead cutout used in kilovoltage radiotherapy. Phys Med Biol 45(1):1
Lye JE, Butler DJ, Webb DV (2010) Enhanced epidermal dose caused by localized electron contamination from lead cutouts used in kilovoltage radiotherapy. Med Phys 37(8):3935–3939
Nelson VK, Hill RF (2011) Backscatter factor measurements for kilovoltage X-ray beams using thermoluminescent dosimeters (TLDs). Radiat Meas 46(12):2097–2099
Newton J, Oldham M, Thomas A, Li Y, Adamovics J, Kirsch DG, Das S (2011) Commissioning a small-field biological irradiator using point, 2D, and 3D dosimetry techniques. Med Phys 38(12):6754–6762
Bassinet C, Huet C, Derreumaux S, Brunet G, Chéa M, Baumann M, Lacornerie T, Gaudaire-Josset S, Trompier F, Roch P (2013) Small fields output factors measurements and correction factors determination for several detectors for a CyberKnife® and linear accelerators equipped with microMLC and circular cones. Med Phys 40(7):071725
Das IJ, Ding GX, Ahnesjö A (2008) Small fields: nonequilibrium radiation dosimetry. Med Phys 35(1):206–215
Mancosu P, Reggiori G, Stravato A, Gaudino A, Lobefalo F, Palumbo V, Navarria P, Ascolese A, Picozzi P, Marinelli M (2015) Evaluation of a synthetic single-crystal diamond detector for relative dosimetry on the Leksell Gamma Knife Perfexion radiosurgery system. Med Phys 42(9):5035–5041
McKerracher C, Thwaites D (1999) Assessment of new small-field detectors against standard-field detectors for practical stereotactic beam data acquisition. Phys Med Biol 44(9):2143
Morales JE, Crowe SB, Hill R, Freeman N, Trapp J (2014) Dosimetry of cone-defined stereotactic radiosurgery fields with a commercial synthetic diamond detector. Med Phys 41(11):111702
Morales J, Hill R, Crowe S, Kairn T, Trapp J (2014) A comparison of surface doses for very small field size X-ray beams: Monte Carlo calculations and radiochromic film measurements. Australas Phys Eng Sci Med 37(2):303–309
Pidikiti R, Stojadinovic S, Speiser M, Song KH, Hager F, Saha D, Solberg TD (2011) Dosimetric characterization of an image-guided stereotactic small animal irradiator. Phys Med Biol 56(8):2585–2599
Verhaegen F, Granton P, Tryggestad E (2011) Small animal radiotherapy research platforms. Phys Med Biol 56(12):R55–R83
Verhaegen F, van Hoof S, Granton PV, Trani D (2014) A review of treatment planning for precision image-guided photon beam pre-clinical animal radiation studies. Z Med Phys 24:323–334
Noblet C, Chiavassa S, Smekens F, Sarrut D, Passal V, Suhard J, Lisbona A, Paris F, Delpon G (2016) Validation of fast Monte Carlo dose calculation in small animal radiotherapy with EBT3 radiochromic films. Phys Med Biol 61(9):3521
Damodar J, Pope D, Odgers D, Hill R (2015) O065 A study of solid state detectors for kilovoltage X-ray beam dosimetry. In: EPSM2015. Wellington, New Zealand
Damodar J, Odgers D, Pope D, Hill R (2018) A study on the suitability of the PTW microDiamond detector for kilovoltage X-ray beam dosimetry. Appl Rad Iso. https://doi.org/10.1016/j.apradiso.2018.01.025
Carlsson CA (1993) Differences in reported backscatter factors for low-energy X-rays: a literature study. Phys Med Biol 38(4):521
Grosswendt B (1984) Backscatter factors for X-rays generated at voltages between 10 and 100 kV. Phys Med Biol 29(5):579–591
Grosswendt B (1990) Dependence of the photon backscatter factor for water on source-to-phantom distance and irradiation field size. Phys Med Biol 35(9):1233–1245
Ma CM, Seuntjens JP (1999) Mass-energy absorption coefficient and backscatter factor ratios for kilovoltage X-ray beams. Phys Med Biol 44(1):131–143
Grosswendt B (1993) Dependence of the photon backscatter factor for water on irradiation field size and source-to-phantom distances between 1.5 and 10 cm. Phys Med Biol 38(2):305–310
Klevenhagen SC (1989) Experimentally determined backscatter factors for X-rays generated at voltages between 16 and 140 kV. Phys Med Biol 34(12):1871–1882
Knight RT (1994) Backscatter factors for low and medium energy X-rays calculated by the Monte Carlo method (trans: Department P). Royal Marsden NHS Trust, Sutton
Knight RT, Nahum AE (1994) Depth and field-size dependence of ratios of mass-energy absorption coefficient, water-to-air, for kV X-ray dosimetry. In: Paper presented at the IAEA Proceedings Series, Vienna
Hewson E, Butson M, Hill R (2018) Evaluating TOPAS for the calculation of backscatter factors for low energy X-ray beams. Phys Med Biol. https://doi.org/10.1088/1361-6560/aadf28
Butson MJ, Cheung T, Yu PKN (2008) Measurement of dose reductions for superficial X-rays backscattered from bone interfaces. Phys Med Biol 53(17):N329–N336
Healy BJ, Sylvander S, Nitschke KN (2008) Dose reduction from loss of backscatter in superficial X-ray radiation therapy with the Pantak SXT 150 unit. Australas Phys Eng Sci Med 31(1):49–55
Hill R, Kuncic Z, Baldock C (2010) The water equivalence of solid phantoms for low energy photon beams. Med Phys 37(8):4355–4363
Klevenhagen SC (1982) The build-up of backscatter in the energy range 1 mm Al to 8 mm Al HVT (radiotherapy beams). Phys Med Biol 27(8):1035–1043
Klevenhagen SC, Aukett RJ, Burns JE, Harrison RM, Knight RT, Nahum AE, Rosser KE (1991) Memorandum from the Institute of Physical Sciences in Medicine. Back-scatter and F-factors for low- and medium-energy X-ray beams in radiotherapy. Brit J Radiol 64(765):836–841
Patrocinio HJ, Bissonnette JP, Bussière MR, Schreiner LJ (1996) Limiting values of backscatter factors for low-energy X-ray beams. Phys Med Biol 41(2):239
Butson MJ, Cheung T, Yu PKN (2007) Radiochromic film for verification of superficial X-ray backscatter factors. Australas Phys Eng Sci Med 30(4):269–273
Kim J, Hill R, Claridge MacKonis E, Kuncic Z (2010) An investigation of backscatter factors for kilovoltage X-rays: a comparison between Monte Carlo simulations and Gafchromic EBT film measurements. Phys Med Biol 55(3):783–797
Smith L, Hill R, Nakano M, Kim J, Kuncic Z (2011) The measurement of backscatter factors of kilovoltage X-ray beams using Gafchromic EBT2 film. Australas Phys Eng Sci Med 34(2):261–266
Coudin D, Marinello G (1998) Lithium borate TLD for determining the backscatter factors for low- energy X rays: comparison with chamber-based and Monte Carlo derived values. Med Phys 25(3):347–353
Harrison RM, Walker C, Aukett RJ (1990) Measurement of backscatter factors for low energy radiotherapy (0.1–2.0 mm Al HVL) using thermoluminescence dosimetry. Phys Med Biol 35(9):1247
Li XA, Ma CM, Salhani D (1997) Measurement of percentage depth dose and lateral beam profile for kilovoltage X-ray therapy beams. Phys Med Biol 42(12):2561–2568
Gerig L, Soubra M, Salhani D (1994) Beam characteristics of the Therapax DXT300 orthovoltage therapy unit. Phys Med Biol 39(9):1377–1392
Knoos T, Rosenschold PMA, Wieslander E (2007) Modelling of an orthovoltage X-ray therapy unit with the EGSnrc Monte Carlo package. J Phys Conf Ser 74:021009
di Sopra FM, Keall P, Beckham W (1999) An analytical model of a kilovoltage beam phase space. Med Phys 26(9):2000–2006
Butson MJ, Cheung T, Yu PKN, Alnawaf H (2009) Dose and absorption spectra response of EBT2 Gafchromic film to high energy X-rays. Australas Phys Eng Sci Med 32(4):196–202
Devic S, Seuntjens J, Hegyi G, Podgorsak EB, Soares CG, Kirov AS, Ali I, Williamson JF, Elizondo A (2004) Dosimetric properties of improved GafChromic films for seven different digitizers. Med Phys 31(9):2392–2401
Devic S, Seuntjens J, Sham E, Podgorsak EB, Schmidtlein CR, Kirov AS, Soares CG (2005) Precise radiochromic film dosimetry using a flat-bed document scanner. Med Phys 32(7):2245–2253
Morales JE, Butson M, Crowe SB, Hill R, Trapp J (2016) An experimental extrapolation technique using the Gafchromic EBT3 film for relative output factor measurements in small X-ray fields. Med Phys 43(8):4687–4692
Reinhardt S, Hillbrand M, Wilkens JJ, Assmann W (2012) Comparison of Gafchromic EBT2 and EBT3 films for clinical photon and proton beams. Med Phys 39(8):5257–5262
Baldock C, De Deene Y, Doran S, Ibbott G, Jirasek A, Lepage M, McAuley K, Oldham M, Schreiner L (2010) Polymer gel dosimetry. Phys Med Biol 55(5):R1
De Deene Y, Venning A, Hurley C, Healy B, Baldock C (2002) Dose? Response stability and integrity of the dose distribution of various polymer gel dosimeters. Phys Med Biol 47(14):2459
Trapp J, Michael G, De Deene Y, Baldock C (2002) Attenuation of diagnostic energy photons by polymer gel dosimeters. Phys Med Biol 47(23):4247
De Deene Y, Baldock C (2002) Optimization of multiple spin–echo sequences for 3D polymer gel dosimetry. Phys Med Biol 47(17):3117
Gorjiara T, Hill R, Kuncic Z, Adamovics J, Bosi S, Kim J, Baldock C (2011) Investigation of radiological properties and water equivalency of PRESAGE® dosimeters. Med Phys 38(4):2265–2274
Gorjiara T, Hill R, Kuncic Z, Bosi S, Baldock C (2010) An evaluation of Genipin gel as a water equivalent dosimeter for megavoltage electron beams and kilovoltage X-ray beams. J Phys: Conf Ser 250:164–168
Gorjiara T, Hill R, Kuncic Z, Bosi S, Davies J, Baldock C (2011) Radiological characterization and water equivalency of genipin gel for X-ray and electron beam dosimetry. Phys Med Biol 56(15):4685
Keall P, Baldock C (1999) A theoretical study of the radiological properties and water equivalence of Fricke and polymer gels used for radiation dosimetry. Australas Phys Eng Sci Med 22(3):85–91
Allahverdi M, Nisbet A, Thwaites DI (1999) An evaluation of epoxy resin phantom materials for megavoltage photon dosimetry. Phys Med Biol 44(5):1125–1132
Christ G (1995) White polystyrene as a substitute for water in high energy photon dosimetry. Med Phys 22(12):2097–2100
McEwen MR, Niven D (2006) Characterization of the phantom material virtual water in high-energy photon and electron beams. Med Phys 33(4):876–887
White DR (1978) Tissue substitutes in experimental radiation physics. Med Phys 5(6):467–479
Ramaseshan R, Kohli K, Cao F, Heaton R (2008) Dosimetric evaluation of plastic water diagnostic therapy. J Appl Clin Med Phys 9(2):98–111
Hermann KP, Geworski L, Muth M, Harder D (1985) Polyethylene-based water-equivalent phantom material for X-ray dosimetry at tube voltages from 10 to 100 kV. Phys Med Biol 30(11):1195–1200
Reniers B, Verhaegen F, Vynckier S (2004) The radial dose function of low-energy brachytherapy seeds in different solid phantoms: comparison between calculations with the EGSnrc and MCNP4C Monte Carlo codes and measurements. Phys Med Biol 49(8):1569–1582
Meigooni AS, Li Z, Mishra V, Williamson JF (1994) A comparative study of dosimetric properties of plastic water and solid water in brachytherapy applications. Med Phys 21(12):1983–1987
Hill RF, Brown S, Baldock C (2008) Evaluation of the water equivalence of solid phantoms using gamma ray transmission measurements. Radiat Meas 43(7):1258–1264
Li XA, Ma CM, Salhani D (1999) Relative dosimetry measurement for kilovoltage X-ray units. In: Ma CM, Seuntjens JP (eds) Kilovoltage X-ray beam dosimetry for radiotherapy and radiobiology. Medical Physics Publishing, Madison, pp 213–226
Schauer DA, Cassata JR, King JJ (2000) A comparison of measured and calculated photon backscatter from dosemeter calibration phantoms. Radiat Prot Dosim 88(4):319–321
Schwahn SO, Gesell TF (2008) Variations in backscatter observed in PMMA whole-body dosimetry slab phantoms. Radiat Prot Dosim 128(3):375–381
Traub RJ, McDonald JC, Murphy MK (1997) Determination of photon backscatter from several calibration phantoms. Radiat Prot Dosim 74(1–2):13–20
Kron T, Duggan L, Smith T, Rosenfeld A, Butson M, Kaplan G, Howlett S, Hyodo K (1998) Dose response of various radiation detectors to synchrotron radiation. Phys Med Biol 43(11):3235–3259
Mobit P, Agyingi E, Sandison G (2006) Comparison of the energy-response factor of LiF and Al2O3 in radiotherapy beams. Radiat Prot Dosim 119(1–4):497–499
Nelson VK, McLean ID, Holloway L (2008) Use of thermoluminescent dosimetry (TLD) for quality assurance of orthovoltage X-ray therapy machines. Radiat Meas 43(2–6):908–911
Kron T, Smith A, Hyodo K (1996) Synchrotron radiation in the study of the variation of dose response in thermoluminescence dosimeters with radiation energy. Australas Phys Eng Sci Med 19(4):225–236
Butson MJ, Cheung T, Yu PK, Price S, Bailey M (2008) Measurement of radiotherapy superficial X-ray dose under eye shields with radiochromic film. Phys Med 24(1):29–33
Richley L, John AC, Coomber H, Fletcher S (2010) Evaluation and optimization of the new EBT2 radiochromic film dosimetry system for patient dose verification in radiotherapy. Phys Med Biol 55(9):2601–2617
Eaton DJ (2012) Quality assurance and independent dosimetry for an intraoperative X-ray device. Med Phys 39(11):6908–6920
Eduardo Villarreal-Barajas J, Khan RFH (2014) Energy response of EBT3 radiochromic films: implications for dosimetry in kilovoltage range. J Appl Clin Med Phys 15(1):331–338
Hammer CG, Rosen BS, Fagerstrom JM, Culberson WS, DeWerd LA (2018) Experimental investigation of Gafchromic® Ebt3 intrinsic energy dependence with kilovoltage X rays, 137cs, and 60co. Med Phys 45(1):448–459
Cheung T, Butson MJ, Yu PK (2003) MOSFET dosimetry in-vivo at superficial and orthovoltage X-ray energies. Australas Phys Eng Sci Med 26(2):82–84
Cheung T, Yu PKN, Butson MJ (2005) Low-dose measurement with a MOSFET in high-energy radiotherapy applications. Radiat Meas 39(1):91–94
Lian CPL, Othman MAR, Cutajar D, Butson M, Guatelli S, Rosenfeld AB (2011) Monte Carlo study of the energy response and depth dose water equivalence of the MOSkin radiation dosimeter at clinical kilovoltage photon energies. Australas Phys Eng Sci Med 34(2):273–279
Akselrod MS, Bøtter-Jensen L, McKeever SWS (2006) Optically stimulated luminescence and its use in medical dosimetry. Radiat Meas 41(Supplement 1):S78–S99
Reft CS (2009) The energy dependence and dose response of a commercial optically stimulated luminescent detector for kilovoltage photon, megavoltage photon, and electron, proton, and carbon beams. Med Phys 36(5):1690–1699. https://doi.org/10.1118/1.3097283
Guerda Massillon JL, Iván Domingo M-M, Porfirio D-A (2016) Optimum absorbed dose versus energy response of Gafchromic EBT2 and EBT3 films exposed to 20–160 kV X-rays and 60 Co gamma. Biomed Phys Eng Expr 2(4):045005
Mart CJ, Elson HR, Lamba MAS (2012) Measurement of low-energy backscatter factors using GAFCHROMIC film and OSLDs. J Appl Clin Med Phys 13(6):126–133
Lessard F, Archambault L, Plamondon M, Després P, Therriault-Proulx F, Beddar S, Beaulieu L (2012) Validating plastic scintillation detectors for photon dosimetry in the radiologic energy range. Med Phys 39(9):5308–5316
Hill RF, Tofts PS, Baldock C (2010) The Bland–Altman analysis: does it have a role in assessing radiation dosimeter performance relative to an established standard? Radiat Meas 45(7):810–815
Li XA, Salhani D, Ma CM (1997) Characteristics of orthovoltage X-ray therapy beams at extended SSD for applicators with end plates. Phys Med Biol 42(2):357–370
Van Dyk J (1999) Radiation oncology overview. In: Van Dyk J (ed) The modern technology of radiation oncology. Medical Physics Publishing, Madison, Wisconsin
Alaei P, Gerbi BJ, Geise RA (2000) Evaluation of a model-based treatment planning system for dose computations in the kilovoltage energy range. Med Phys 27(12):2821–2826
Ding GX, Duggan DM, Coffey CW (2008) Accurate patient dosimetry of kilovoltage cone-beam CT in radiation therapy. Med Phys 35(3):1135–1144
Ding GX, Pawlowski JM, Coffey CW (2008) A correction-based dose calculation algorithm for kilovoltage X rays. Med Phys 35(12):5312–5316
Gao W, Raeside DE (1997) Orthovoltage radiation therapy treatment planning using Monte Carlo simulation: treatment of neuroendocrine carcinoma of the maxillary sinus. Phys Med Biol 42(12):2421–2433
Lee CHM, Chan KKD (2000) Electron contamination from the lead cutout used in kilovoltage radiotherapy. Phys Med Biol 45(1):1–8
Das IJ, Chopra KL (1995) Backscatter dose perturbation in kilovoltage photon beams at high atomic number interfaces. Med Phys 22(6):767–773
Eaton DJ, Doolan PJ (2013) Review of backscatter measurement in kilovoltage radiotherapy using novel detectors and reduction: from lack of underlying scattering material. J Appl Clin Med Phys 14(6):5–17
Hill R, Healy B, Holloway L, Baldock C (2007) An investigation of dose changes for therapeutic kilovoltage X-ray beams with underlying lead shielding. Med Phys 34(7):3045–3053
Huq MS, Venkataramanan N, Meli JA (1992) The effect on dose of kilovoltage X-rays backscattered from lead. Int J Radiat Oncol Biol Phys 24(1):171–175
Lanzon PJ, Sorell GC (1993) The effect of lead underlying water on the backscatter of X-rays of beam qualities 0.5 mm to 8 mm Al HVT. Phys Med Biol 38(8):1137–1144
Das IJ (1997) Forward dose perturbation at high atomic number interfaces in kilovoltage X-ray beams. Med Phys 24(11):1781–1787
Mitchell G, Kron T, Back M (1998) High dose behind inhomogeneities during medium-energy X-ray irradiation. Phys Med Biol 43(5):1343–1350
Currie BE (2009) Determining superficial dosimetry for the internal canthus from the Monte Carlo simulation of kV photon and MeV electron beams. Australas Phys Eng Sci Med 32(2):68–80
Baker CR, Luhana F, Thomas SJ (2002) Absorbed dose behind eye shields during kilovoltage photon radiotherapy. Brit J Radiol 75(896):685–688
Gordon KB, Char DH, Sagerman RH (1995) Late effects of radiation on the eye and ocular adnexa. Int J Radiat Oncol Biol Phys 31(5):1123–1139
Wang D, Sobolewski M, Hill R (2012) The dosimetry of eye shields for kilovoltage X-ray beams. Australas Phys Eng Sci Med 35(4):491–495. https://doi.org/10.1007/s13246-012-0166-9
Kron T, Dwyer M, Smith L, MacDonald A, Pawsey M, Raik E, Arnold A, Hill B, Duchesne G (2015) The development of practice standards for radiation oncology in Australia: a tripartite approach. Clin Oncol 27(6):325–329
Acknowledgements
The authors would like to acknowledge the work done by the past and current chairs of the ACPSEM ROSG, being Michael Bailey and Mario Perez respectively, for their support in the implementation of the position papers and organisation of the Radiation Oncology working parties. The authors would also like to thank their colleagues in their respective organisations for many valuable discussions in this project.
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Hill, R., Healy, B., Butler, D. et al. Australasian recommendations for quality assurance in kilovoltage radiation therapy from the Kilovoltage Dosimetry Working Group of the Australasian College of Physical Scientists and Engineers in Medicine. Australas Phys Eng Sci Med 41, 781–808 (2018). https://doi.org/10.1007/s13246-018-0692-1
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DOI: https://doi.org/10.1007/s13246-018-0692-1