Photon beam commissioning of an Elekta Synergy linear accelerator

• Autorzy: Al Mashud, M. A. , Tariquzzaman, M. , Alam, M. J. , Zakaria, G. A.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

commissioning; accuracy; output; LINAC; transmission factor; in-plane and cross-plane

• Czasopismo: Polish Journal of Medical Physics and Engineering
• Rocznik: 2017
• Tom: Vol. 23, Iss. 4
• Strony: 115--119
• Opis fizyczny: Bibliogr. 22 poz., rys., tab.

Twórcy

autor

Al Mashud, M. A.

• Dept. of Applied Physics, Electronics & Communication Engineering, Islamic University, Kushtia-7003, Bangladesh

autor

Tariquzzaman, M.

• Dept. of Information and Communication Engineering, Islamic University, Kushtia-7003, Bangladesh,

autor

Alam, M. J.

• Medical Physics Division, Dept. of Radiation Oncology, Ahsania Mission Cancer & General Hospital, Uttara, Dhaka

autor

Zakaria, G. A.

• Dept. of Medical Radiation Physics, Gummersbach Hospital, Academic Teaching Hospital University of Cologne, Gummersbach, Germany

Bibliografia

• [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.
• [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.
• [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.
• [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.
• [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.
• [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.
• [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.
• [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.
• [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] 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.
• [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.
• [12] Jursinic PA. Measurement of head scatter factors of linear accelerators with columnar miniphantoms. Med Phys. 2006;33(6):1720-1728.
• [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.
• [14] Phillips MH, Parsaei H, Cho PS. Dynamic and omni wedge implementation on an Elekta SL linac. Med Phys. 2000;27(7):1623-1634.
• [15] Thompson CM, Weston SJ, Cosgrove VC, Thwaites DI. A dosimetric characterization of a novel linear accelerator collimator. Med. Phys. 2014;41(3):031713.
• [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.
• [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.
• [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.
• [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.
• [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.
• [21] Cashmore J. The characterization of unflattened photon beams from a 6 MV linear accelerator. Phys Med Biol. 2008;53(7):1933-1346.
• [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.

Identyfikatory

DOI

10.1515/pjmpe-2017-0019