The negative hydrogen Penning ion gauge ion source for KIRAMS-13 cyclotron

An, Dong Hyun; Jung, In‐Ha; Kang, Ju‐Hee; Chang, Hong-Suk; Hong, Bong Hwan; Hong, Seungpyo; Lee, M. Y.; Kim, Y.; Yang, Tae-Keun; Chai, Jong Seo

doi:10.1063/1.2812797

Cited by 15 publications

(7 citation statements)

References 3 publications

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“…The equipment used in this cyclotron magnet design was a computer equipped with Opera 3D software and Tosca module. The analysis of magnetic field can be done using the equilibrium orbit software such as Genspeo [6]. Magnetic field distribution data from Tosca simulation was used by Genspeo to get cyclotron magnet parameters.…”

Section: Experimental Methodsmentioning

confidence: 99%

Determination of Magnet Specification of 13 MeV Proton Cyclotron Based on Opera 3D

et al. 2014

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The magnet is one of the main components of a cyclotron, used to form a circular particle beam trajectories and to provide focusing of the beam. To support the mastery of 13-MeV proton cyclotron technologies, cyclotron magnet design must be done to satisfy cyclotron magnet requirements. This research was conducted by studying important parameters in designing the cyclotron magnet which is then used to determine the design requirements. The magnet design was based on the results of a 3D simulation using Opera 3D software. Opera 3D is a software developed by Cobham plc to solve physical problems in 3D such as magnetostatic using finite element methods. The simulation started by drawing a 3D model of the magnet using a modeler, followed by magnetic field calculations by Tosca module in the Opera 3D software. Simulation results were analyzed with the Genspeo software to determine whether the parameters of the cyclotron magnet have met design requirements. The results indicate that the magnet design satisfied the cyclotron magnet design requirement, that B in the median plane of the magnetic pole approached the isochronous curve, providing axial and radial focusing beam, crossing the resonance line at v r = 1 when the particle energy is low and the particle energy is more than 13 MeV, and lead to small enough phase shift of about 13°. The dimension of the cyclotron magnet is 1.96 m × 1.30 m × 1.21 m; its weight is 17.3 ton; its coil current is 88,024 ampere-turn; its center magnetic field is 1.27479 T; its maximum magnetic field is 1.942116 T; its minimum magnetic field is 0.7689 T; its valley gap is 120 mm; its hill gaps are 40 to 50.78 mm; and its hill angles are 35° to 44°.

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Section: Experimental Methodsmentioning

confidence: 99%

Determination of Magnet Specification of 13 MeV Proton Cyclotron Based on Opera 3D

et al. 2014

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“…The KOTRON-13 cyclotron was manufactured by Samyoung Unitech in South Korea [5][6][7][8]. Its prototype was installed at Seoul National University Bundang Hospital (SNUBH) as part of a distributed network of regional cyclotrons in South Korea with the support of a grant from the National Research Foundation of Korea.…”

Section: Introductionmentioning

confidence: 99%

Development of additive [ 11 C]CO 2 target system in the KOTRON-13 cyclotron and its application for [ 11 C]radiopharmaceutical production

Moon

Lee

Lee³

et al. 2015

Nuclear Instruments and Methods in Physics Research Section B:

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“…Igniting and sustaining dense plasma requires that enough high energy electrons are present in the system to replenish those lost from interacting with the neutral gas. As part of the simulations, we varied the magnetic field and electric field to try to optimize the production of secondary electrons, finding an optimum magnetic field strength of 0.2 T. The KIRAMS-13 cyclotron, which produces a 13 MeV energy ion beam, was developed by the Korea Institute of Radiological Medical Sciences (KIRAMS) [8] to produce short-lived positron emission tomography radioisotopes for medical diagnosis and treatment. It is used at more than five regional cyclotron centers in South Korea.…”

Section: Introductionmentioning

confidence: 99%

“…The maximum produced beam current is limited to the expected value, due to low efficiency in ion source performance. Multiple investigations to evaluate the ion beam current were studied and performed in previous work [6,[8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Simulation of electron behavior in PIG ion source for 9 MeV cyclotron

Ghergherehchi

Yeon

et al. 2014

Chinese Phys. C

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In this paper, we focus on a PIG source for producing intense H-ions inside a 9 MeV cyclotron. The properties of the PIG ion source were simulated for a variety of electric field distributions and magnetic field strengths using CST particle studio. After analyzing secondary electron emission (SEE) as a function of both magnetic and electric field strengths, we found that for the modeled PIG geometry a magnetic field strength of 0.2 T provided the best results in terms of the number of secondary electrons. Furthermore, at 0.2 T the number of secondary electrons proved to be greatest regardless of the cathode potential. Also the modified PIG ion source with quartz insulation tubes was tested in KIRAMS-13 cyclotron by varying gas flow rate and arc current, respectively. The capacity of the designed ion source was also demonstrated by producing plasma inside the constructed 9MeV cyclotron. As a result, the ion source is verified to be capable of producing intense Hbeam and high ion beam current for the desired 9 MeV cyclotron. The simulation results provide experimental constraints for optimizing the strength of the plasma and final ion beam current at target inside a cyclotron.Key words PIG ion source, CST particle studio, electromagnetic field，secondary electron, gas flow rate, arc current PACS 29.20.dg, 29.25.Ni a jschai@skku.edu

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The negative hydrogen Penning ion gauge ion source for KIRAMS-13 cyclotron

Cited by 15 publications

References 3 publications

Determination of Magnet Specification of 13 MeV Proton Cyclotron Based on Opera 3D

Determination of Magnet Specification of 13 MeV Proton Cyclotron Based on Opera 3D

Development of additive [ 11 C]CO 2 target system in the KOTRON-13 cyclotron and its application for [ 11 C]radiopharmaceutical production

Simulation of electron behavior in PIG ion source for 9 MeV cyclotron

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