http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Magnetic Field Design of a KIRAMS-K120 Superconducting Cyclotron
강준선,김유석 한국초전도.저온공학회 2008 한국초전도저온공학회논문지 Vol.10 No.4
Korea Institute of Radiological & Medical Sciences (KIRAMS) has been developing a K120 superconducting cyclotron. We have designed the magnetic field of a K120 superconducting cyclotron. Two pairs of superconducting NbTi coils have been introduced to accelerate variable ions (0.125 ≤ Z/A ≤ 0.5). The spiral sector has been designed for stable beam acceleration. The basic design parameters of the magnet geometries are calculated by analytic equations. The magnetic fields and the geometries are simulated by TOSCA and are verified by GENSPEO. We use Carbon ions during the design process as the criteria. The main parameters and properties of the K120 superconducting magnet are presented.
Central Region Design of the K120 Superconducting Cyclotron
안동현,강준선,In Su Jung,김유석 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.5
The K120 superconducting cyclotron, which is able to accelerate ions with a range of charge-to-mass ratio between 0.13 and 0.5 from 2.0 to 30 MeV /amu is now under design at Korea Institute of Radiological & Medical Sciences(KIRAMS). If the whole range of ions is to be accelerated with only one spiral inflector and central region, the initial energy, electric potential of the spiral inflector and the dee voltage with respect to the injected ions have been determined. The magnetic field at the center of the cyclotron is about 3.1 Tesla and the operating RF frequency is in the range between 24 and 48 MHz with harmonic numbers of 2 and 4. This paper presents the design parameters of the spiral inflector and the central region of the K120 superconducting cyclotron and the results of the carbon ion beam simulations.
Radio-frequency System of the KIRAMS-30 Cyclotron for RI Mass Production
정인수,Yeunsoo Park,강준선,안동현,한가람,홍봉환,허민구,조준동,김문현,권기호 한국물리학회 2012 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.61 No.2
The KHIMA (Korea Heavy Ion Medical Accelerator) had developed the KIRAMS-30 cyclotron in collaboration with the ARTI (Advanced Radiation Technology Institute). This cyclotron is able to accelerate proton for the mass production of radioisotopes. It is designed to use two normal conduct RF cavities. The resonant frequency of the ion is 15.99 MHz because of the magnet design and the beam dynamics. The RF frequency is 63.96 MHz because of the 4<sup>th</sup> harmonic number. By using computer simulation codes, we estimated the principle design parameters of the RF system, we simulated the electric field distribution. In this paper, we present the design features, the results of quality assessment tests for the RF system, and important issues taken into consideration when designing such a cyclotron.
Field Mapping System for the KIRAMS-30 Cyclotron Magnet
K. H. Park,Y. D. Yoon,Y. G. Jung,D. E. Kim,B. K. Kang,강준선,채종서 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.4
This paper presents a Hall-probe mapping system for measuring a cyclotron magnet. The system fabricated for the 30-MeV cyclotron at the Korea Institute of Radiological and Medical Sciences (KIRAMS). The Hall probes were mounted on a precision mechanical rotational stage and mapped the magnetic field in a cylindrical coordinate system. The mapping system used the "flying" mode field mapping method to reduce the data-acquisition time. The time required for mapping the whole gap-area of the cyclotron magnet was minutes. The relative random fluctuation error during the entire mapping process was less than 0.01 %. The cyclotron magnet was corrected using the measured data for the magnetic field. After the correction, the total phase excursion of the cyclotron was less than , which is within the total phase excursion tolerance of .
Current Design Status of High Energy Beam Transfer Line for KHIMA Project
임희중,안동현,Kun-Uk Kang,한가람,홍봉환,Seong Seok Hong,황원택,장홍석,정인수,강준선,김창혁,이민용,Yeun-Soo Park,양태건,김근범 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.7
The Korea heavy ion medical accelerator (KHIMA) project is developing and constructing theheavy ion medical accelerator for the first time in Korea since 2010. This paper describes the statusof high energy beam transfer line (HEBT), which connects the superconducting cyclotron to thetreatment rooms. The HEBT provides a patient with 145 - 430 MeV/u carbon (12C6+) beam tocure cancer. The HEBT is consisted of 6 beam lines (4 horizontal, 1 vertical and 1 oblique). Thesize of the design HEBT is 41 m in length, 11 m in width and 17 m in height. Total number ofmagnets is 53 for focusing magnets and 22 for bending magnets. In the description, the currentdesign status of the HEBT is described.