Preliminary results, obtained by using a proton beam, for an active scanning system to installed on the KHIMA

Autor: Chang Hyeuk Kim, Won Taek Hwang, Dong Wook Park, Sea Duk Jang, Garam Hahn, Tae-Keun Yang, Hyunyong Kim, Hong Suk Jang, Jeong Hwan Kim, Hwa-Ryun Lee
Rok vydání: 2015
Předmět:
Zdroj: Journal of the Korean Physical Society. 67:581-589
ISSN: 1976-8524
0374-4884
DOI: 10.3938/jkps.67.581
Popis: The active scanning technique is a pencil beam delivery method in particle therapy. The active scanning beam delivery system consists of a beam scanner, beam monitor, energy modulator, and related programs, such as the irradiation control and planning programs. A proposed prototype active scanning system was designed and installed on MC-50 at the Korea Institute of Radiological and Medical Science (KIRAMS) with a 45-MeV proton beam. The laminated magnetic yoke of the scanning magnet supported fast ramping. The beam intensity and the beam profile monitors were designed for measuring the beam’s properties. Both the range shifter and the ridge filter modulate the incoming beam energy. The LabVIEW®-based beam-irradiation-control program operates the system in a sequential operation manner for use with the MC-50 cyclotron. In addition, an in-housecoded irradiation-planning program generates an optimal irradiation path. A scanning experiment was successfully completed to print the logo of the Korea Heavy Ion Medical Accelerator (KHIMA) on GaF film. Moreover, the beam’s position accuracy was measured as 0.62 mm in the x-direction and as 0.83 mm in the y-direction.
Databáze: OpenAIRE
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