| Item type |
学位論文 / Thesis or Dissertation(1) |
| 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 |
|
|
タイトル |
Acceleration scenario and Necessary Devices for The KEK-Digital Accelerator |
|
言語 |
en |
| 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
|
| フリガナ |
デクシット, タヌジャ スーシャント
|
| 著者 |
DIXIT, Tanuja Sushant
|
| 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 |
|
|
値 |
2008 |
| 要旨 |
|
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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 |
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|
値 |
有 |
要旨・審査要旨 (268.2 kB)
