Photon beam commissioning of an Elekta Synergy linear accelerator

Al Mashud, Md Abdullah; Tariquzzaman, M; Jahangir Alam, M; Zakaria, GA

doi:10.1515/pjmpe-2017-0019

Abstract

The aim of this study is to present the results of commissioning of Elekta Synergy linear accelerator (linac). The acceptance test and commissioning were performed for three photon beams energies 4 MV, 6 MV and 15 MV and for the multileaf collimator (MLC). The percent depth doses (PDDs), in-plane and cross-plane beam profiles, head scatter factors (Sc), relative photon output factors (Scp), universal wedge transmission factor and MLC transmission factors were measured. The size of gantry, collimator, and couch isocenter were also measured.

References

[1] Narayanasamy G, Saenz D, Cruz W, et al. Commissioning an Elekta Versa HD linear accelerator. J Appl Clin Med Phys. 2016;17(1):179-191.10.1120/jacmp.v17i1.5799569021726894351
Open DOI Search in Google Scholar Back to article
[2] Allen J. White Paper: High Dose Rate mode (Flattening Filter Free) Radiotherapy Clinical advantages of High Dose Rate mode, available with Agility™ on Elekta’s Versa HD™ linear accelerator [white paper]. 2014.
Search in Google Scholar Back to article
[3] Boda-Heggemann J, Mai S, Fleckenstein J, et al. Flattening-filter-free intensity modulated breath-hold image-guided SABR (Stereotactic ABlative Radiotherapy) can be applied in a 15-min treatment slot. Radiother Oncol. 2013;109(3):505-509.10.1016/j.radonc.2013.09.01424128805
Search in Google Scholar Back to article
[4] Das IJ, Cheng CW, Watts RJ, et al. Accelerator beam data commissioning equipment and procedures: report of the TG-106 of the Therapy Physics Committee of the AAPM. Med Phys. 2008;35(9):4186-4215.10.1118/1.296907018841871
Search in Google Scholar Back to article
[5] Klein EE, Hanley J, Bayouth J, et al. Task Group 142 report: quality assurance of medical accelerators. Med Phys. 2009;36(9):4197-4212.10.1118/1.319039219810494
Open DOI Search in Google Scholar Back to article
[6] Almond PR, Biggs PJ, Coursey BM, et al. AAPM’s TG-51 protocol for clinical reference dosimetry of high-energy photon and electron beams. Med Phys. 1999;26(9):1847-1870.10.1118/1.59869110505874
Search in Google Scholar Back to article
[7] Niroomand-Rad A, Blackwell CR, Coursey BM, et al. Radiochromic film dosimetry: recommendations of AAPM Radiation Therapy Committee Task Group 55. Med Phys. 1998;25(11):2093-2115.10.1118/1.5984079829234
Search in Google Scholar Back to article
[8] International Electrotechnical Commission. Medical electrical equipment. Part 2: Particular requirements for the safety of gamma beam therapy equipment. IEC 60601-2-11. Geneva, Switzerland: IEC; 1987.
Search in Google Scholar Back to article
[9] Pönisch F, Titt U, Vassiliev ON, et al. Properties of unflattened photon beams shaped by a multileaf collimator. Med Phys. 2006;33(6):1738-1746.10.1118/1.220114916872081
Open DOI Search in Google Scholar Back to article
[10] Stathakis S, Esquivel C, Gutierrez A, et al. Treatment planning and delivery of IMRT using 6 and 18 MV photon beams without flattening filter. Appl Radiat Isot. 2009;67(9):1629-1637.10.1016/j.apradiso.2009.03.01419369083
Search in Google Scholar Back to article
[11] Weber L, Nilsson P, Ahnesjö A. Build-up cap materials for measurement of photon head-scatter factors. Phys Med Biol. 1997;42(10):1875-1886.10.1088/0031-9155/42/10/0029364584
Search in Google Scholar Back to article
[12] Jursinic PA. Measurement of head scatter factors of linear accelerators with columnar miniphantoms. Med Phys. 2006;33(6):1720-1728.10.1118/1.220114816872079
Open DOI Search in Google Scholar Back to article
[13] Dieterich S, Sherouse GW. Experimental comparison of seven commercial dosimetry diodes for measurement of stereotactic radiosurgery cone factors. Med Phys. 2011;38(7):4166-4173.10.1118/1.359264721859018
Open DOI Search in Google Scholar Back to article
[14] Phillips MH, Parsaei H, Cho PS. Dynamic and omni wedge implementation on an Elekta SL linac. Med Phys. 2000;27(7):1623-1634.10.1118/1.59902910947266
Open DOI Search in Google Scholar Back to article
[15] Thompson CM, Weston SJ, Cosgrove VC, Thwaites DI. A dosimetric characterization of a novel linear accelerator collimator. Med Phys. 2014;41(3):031713.10.1118/1.486622824593717
Open DOI Search in Google Scholar Back to article
[16] International Electrotechnical Commission. Medical electrical equipment — Part 2.1. Particular requirements for the basic safety and essential performance of electron accelerators in the range 1 MeV to 50 MeV. IEC 60601–2-1 Ed. 3.0. Geneva, Switzerland: IEC; 2009.
Search in Google Scholar Back to article
[17] Chang Z, Wu Q, Adamson J, et al. Commissioning and dosimetric characteristics of TrueBeam system: composite data of three TrueBeam machines. Med Phys. 2012;39(11):6981-7018.10.1118/1.476268223127092
Search in Google Scholar Back to article
[18] Kragl G, af Wetterstedt S, Knäusl B, et al. Dosimetric characteristics of 6 and 10 MV unflattened photon beams. Radiother Oncol. 2009;93(1):141-146.10.1016/j.radonc.2009.06.00819592123
Search in Google Scholar Back to article
[19] Benedict SH, Yenice KM, Followill D, et al. Stereotactic body radiation therapy: the report of AAPM Task Group 101. Med Phys. 2010;37(8):4078-4101.10.1118/1.343808120879569
Search in Google Scholar Back to article
[20] Glide-Hurst C, Bellon M, Foster R, et al. Commissioning of the Varian TrueBeam linear accelerator: a multi-institutional study. Med Phys. 2013;40(3):031719.10.1118/1.479056323464314
Open DOI Search in Google Scholar Back to article
[21] Cashmore J. The characterization of unflattened photon beams from a 6 MV linear accelerator. Phys Med Biol. 2008;53(7):1933-1346.10.1088/0031-9155/53/7/00918364548
Search in Google Scholar Back to article
[22] Vassiliev ON, Titt U, Pönisch F, et al. Dosimetric properties of photon beams from a flattening filter free clinical accelerator. Phys Med Biol. 2006;51(7):1907-1917.10.1088/0031-9155/51/7/01916552113
Open DOI Search in Google Scholar Back to article

Photon beam commissioning of an Elekta Synergy linear accelerator

Abstract

Paradigm

My account