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Its operational performance is the\u003cbr /\u003e same as that of the induction synchrotron, where acceleration and confinement of ions\u003cbr /\u003e in the propagation direction are implemented independently with a pulsed voltage and\u003cbr /\u003e the so-called barrier voltages. These voltage pulses are generated in the induction\u003cbr /\u003e acceleration cell energized by the switching power supply, which is triggered with a\u003cbr /\u003e trigger signal manipulated by an ion-bunch signal. In the digital accelerator, any ion\u003cbr /\u003e species with its possible charge state can be accelerated since the acceleration voltage\u003cbr /\u003e pulse generation is always synchronized with the ion circulation. Acceleration of \u003cbr /\u003eargon ions is planned as a proof-of-principle experiment at KEK. 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In\u003cbr /\u003e fact, this idea has been developed for the KEK digital accelerator. The acceleration\u003cbr /\u003e period is divided into stages, where different acceleration voltages, pulse widths, and\u003cbr /\u003e repetition rates are required. A novel technique, which consists of staging of the\u003cbr /\u003e acceleration period, systematic sorting of the induction acceleration cells, and\u003cbr /\u003e intermittent operation of the induction acceleration systems, has been developed. \u003cbr /\u003e Particle tracking simulations in the longitudinal direction were performed in order to\u003cbr /\u003e verify the feasibility of the scheme. The acceleration scheme has been verified\u003cbr /\u003e experimentally for the first two stages of the acceleration period by using a beam\u003cbr /\u003e simulator signal. 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Acceleration scenario and Necessary Devices for The KEK-Digital Accelerator
https://ir.soken.ac.jp/records/651
https://ir.soken.ac.jp/records/65160672a45-52fe-4c20-bf42-0aa2a1973797
名前 / ファイル | ライセンス | アクション |
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||
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公開日 | 2010-02-22 | |||||
タイトル | ||||||
タイトル | Acceleration scenario and Necessary Devices for The KEK-Digital Accelerator | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Acceleration scenario and Necessary Devices for The KEK-Digital Accelerator | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_46ec | |||||
資源タイプ | thesis | |||||
著者名 |
DIXIT, TANUJA SUSHANT
× DIXIT, TANUJA SUSHANT |
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フリガナ |
デクシット, タヌジャ スーシャント
× デクシット, タヌジャ スーシャント |
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著者 |
DIXIT, Tanuja Sushant
× DIXIT, Tanuja Sushant |
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学位授与機関 | ||||||
学位授与機関名 | 総合研究大学院大学 | |||||
学位名 | ||||||
学位名 | 博士(工学) | |||||
学位記番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 総研大甲第1194号 | |||||
研究科 | ||||||
値 | 高エネルギー加速器科学研究科 | |||||
専攻 | ||||||
値 | 12 加速器科学専攻 | |||||
学位授与年月日 | ||||||
学位授与年月日 | 2008-09-30 | |||||
学位授与年度 | ||||||
2008 | ||||||
要旨 | ||||||
内容記述タイプ | Other | |||||
内容記述 | A novel ion accelerator referred to as a digital accelerator, which is based on the<br /> induction synchrotron concept, is discussed here. Its operational performance is the<br /> same as that of the induction synchrotron, where acceleration and confinement of ions<br /> in the propagation direction are implemented independently with a pulsed voltage and<br /> the so-called barrier voltages. These voltage pulses are generated in the induction<br /> acceleration cell energized by the switching power supply, which is triggered with a<br /> trigger signal manipulated by an ion-bunch signal. In the digital accelerator, any ion<br /> species with its possible charge state can be accelerated since the acceleration voltage<br /> pulse generation is always synchronized with the ion circulation. Acceleration of <br />argon ions is planned as a proof-of-principle experiment at KEK. The detailed aspects<br /> of the digital accelerator are described, including theoretical backgrounds such as<br /> beam dynamics. <br /><br /> The KEK-PS booster synchrotron is under renovation, aiming to become the first <br /> digital accelerator. The KEK Booster is a rapid-cycle synchrotron where the acceleration<br /> voltage amplitude changes dynamically throughout the acceleration <br />period. The existing induction cells can provide a peak output voltage of 2 kV in 250 <br />nsec pulse width at a maximum repetition rate of 1 MHz. Once the peak output<br /> voltage is fixed, it is difficult to change its magnitude in the same acceleration cycle. <br /> The main purpose of this thesis is to propose the realization of a dynamically<br /> changeable acceleration voltage by employing the induction acceleration system. In<br /> fact, this idea has been developed for the KEK digital accelerator. The acceleration<br /> period is divided into stages, where different acceleration voltages, pulse widths, and<br /> repetition rates are required. A novel technique, which consists of staging of the<br /> acceleration period, systematic sorting of the induction acceleration cells, and<br /> intermittent operation of the induction acceleration systems, has been developed. <br /> Particle tracking simulations in the longitudinal direction were performed in order to<br /> verify the feasibility of the scheme. The acceleration scheme has been verified<br /> experimentally for the first two stages of the acceleration period by using a beam<br /> simulator signal. The results will be presented here and the perspectives of this<br /> technique will be discussed. | |||||
所蔵 | ||||||
値 | 有 |