Design Study for Pulsed Proton Beam Generation

Fast neutrons with a broad energy spectrum, with which it is possible to evaluate nuclear data for various research fields such as medical applications and the development of fusion reactors, can be generated by irradiating proton beams on target materials such as beryllium. To generate short-pulse...

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Main Authors: Han-Sung Kim, Hyeok-Jung Kwon, Kyung-Tae Seol, Yong-Sub Cho
Format: Article
Language:English
Published: Elsevier 2016-02-01
Series:Nuclear Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S173857331500203X
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author Han-Sung Kim
Hyeok-Jung Kwon
Kyung-Tae Seol
Yong-Sub Cho
author_facet Han-Sung Kim
Hyeok-Jung Kwon
Kyung-Tae Seol
Yong-Sub Cho
author_sort Han-Sung Kim
collection DOAJ
description Fast neutrons with a broad energy spectrum, with which it is possible to evaluate nuclear data for various research fields such as medical applications and the development of fusion reactors, can be generated by irradiating proton beams on target materials such as beryllium. To generate short-pulse proton beam, we adopted a deflector and slit system. In a simple deflector with slit system, most of the proton beam is blocked by the slit, especially when the beam pulse width is short. Therefore, the available beam current is very low, which results in low neutron flux. In this study, we proposed beam modulation using a buncher cavity to increase the available beam current. The ideal field pattern for the buncher cavity is sawtooth. To make the field pattern similar to a sawtooth waveform, a multiharmonic buncher was adopted. The design process for the multiharmonic buncher includes a beam dynamics calculation and three-dimensional electromagnetic simulation. In addition to the system design for pulsed proton generation, a test bench with a microwave ion source is under preparation to test the performance of the system. The design study results concerning the pulsed proton beam generation and the test bench preparation with some preliminary test results are presented in this paper.
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spelling doaj.art-21d3d77742b54855b5905c238d9f39232022-12-22T03:38:11ZengElsevierNuclear Engineering and Technology1738-57332016-02-0148118919910.1016/j.net.2015.10.005Design Study for Pulsed Proton Beam GenerationHan-Sung KimHyeok-Jung KwonKyung-Tae SeolYong-Sub ChoFast neutrons with a broad energy spectrum, with which it is possible to evaluate nuclear data for various research fields such as medical applications and the development of fusion reactors, can be generated by irradiating proton beams on target materials such as beryllium. To generate short-pulse proton beam, we adopted a deflector and slit system. In a simple deflector with slit system, most of the proton beam is blocked by the slit, especially when the beam pulse width is short. Therefore, the available beam current is very low, which results in low neutron flux. In this study, we proposed beam modulation using a buncher cavity to increase the available beam current. The ideal field pattern for the buncher cavity is sawtooth. To make the field pattern similar to a sawtooth waveform, a multiharmonic buncher was adopted. The design process for the multiharmonic buncher includes a beam dynamics calculation and three-dimensional electromagnetic simulation. In addition to the system design for pulsed proton generation, a test bench with a microwave ion source is under preparation to test the performance of the system. The design study results concerning the pulsed proton beam generation and the test bench preparation with some preliminary test results are presented in this paper.http://www.sciencedirect.com/science/article/pii/S173857331500203XDeflectorMultiharmonic BuncherNuclear DataPulsed Proton Beam
spellingShingle Han-Sung Kim
Hyeok-Jung Kwon
Kyung-Tae Seol
Yong-Sub Cho
Design Study for Pulsed Proton Beam Generation
Nuclear Engineering and Technology
Deflector
Multiharmonic Buncher
Nuclear Data
Pulsed Proton Beam
title Design Study for Pulsed Proton Beam Generation
title_full Design Study for Pulsed Proton Beam Generation
title_fullStr Design Study for Pulsed Proton Beam Generation
title_full_unstemmed Design Study for Pulsed Proton Beam Generation
title_short Design Study for Pulsed Proton Beam Generation
title_sort design study for pulsed proton beam generation
topic Deflector
Multiharmonic Buncher
Nuclear Data
Pulsed Proton Beam
url http://www.sciencedirect.com/science/article/pii/S173857331500203X
work_keys_str_mv AT hansungkim designstudyforpulsedprotonbeamgeneration
AT hyeokjungkwon designstudyforpulsedprotonbeamgeneration
AT kyungtaeseol designstudyforpulsedprotonbeamgeneration
AT yongsubcho designstudyforpulsedprotonbeamgeneration