LINAC2016 - List of Authors (Miyajima, T.)

Paper	Title	Page
TUPRC003	Effect of Number of Macro Particles on Time Evolution of Phase Space Distribution	414
	T. Miyajima KEK, Ibaraki, Japan
	Funding: This work was supported by JSPS KAKENHI Grant Number 26600147. In particle tracking simulation with space charge effect, the macro-particle model, which has same mass-to-charge ratio, is widely used, since it does not require any symmetry of beam shape. However, selection of proper number of macro-particles is important, because the accuracy depends on it. Emittance, which is calculated by phase-space distribution, is especially affected by the number of macro-particles. In order to study the relation between the number of macro-particles and the resolution in the phase space, we defined a transformation, which describes reduction process of macro-particle number, and analyzed static phase space distribution. As a next step, we studied the effect of the macro-particle number on the dynamics of the phase space distribution for 1D charged particle distribution in the rest frame. The numerical result shows that the number of macro-particles affected the phase space distribution around the head and the tail of the bunch. * T. Miyajima, "Effect of number of macro particles in phase space distribution", in Proc. of IPAC2015, Richmond, VA, USA, pp.242-244 (2015).
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-TUPRC003
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THOP08	Beam Commissioning of the i-BNCT Linac	760
THPLR056	use link to see paper's listing under its alternate paper code
	F. Naito, S. Anami, Z. Fang, K. Futatsukawa, Y. Honda, Y. Hori, M. Kawamura, H. Kobayashi, T. Kurihara, T. Miura, T. Miura, T. Miyajima, T. Obina, F. Qiu, Y. Sato, T. Shibata, M. Shimamoto, A. Takagi, E. Takasaki, M. Uota KEK, Ibaraki, Japan S. Fujikura ICEPP, Tokyo, Japan K. Ikegami J-PARC, KEK & JAEA, Ibaraki-ken, Japan H. Kumada, Su. Tanaka Tsukuba University, Graduate School of Comprehensive Human Sciences, Ibaraki, Japan Y. Liu, T. Maruta KEK/JAEA, Ibaraki-Ken, Japan A. Miura JAEA/J-PARC, Tokai-mura, Japan N. Nagura, T. Ohba Nippon Advanced Technology Co., Ltd., Tokai, Japan T. Onishi Tsukuba University, Ibaraki, Japan T. Ouchi ATOX, Ibaraki, Japan
	The beam commissioning of the linac for the boron neutron capture therapy of Ibaraki prefecture (i-BNCT) has been started. The accelerator of i-BNCT consists of the 3-MeV RFQ and 8-MeV DTL. The design of RF structure of them is based on the J-PARC linac. After the first demonstration of neutron production on December 2015, significant modifications to the linac were given in order to increase the operation stability and the beam power. The progress of the beam commissioning of the i-BNCT will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THOP08
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Effect of Number of Macro Particles on Time Evolution of Phase Space Distribution

414

T. Miyajima
KEK, Ibaraki, Japan

Funding: This work was supported by JSPS KAKENHI Grant Number 26600147.
In particle tracking simulation with space charge effect, the macro-particle model, which has same mass-to-charge ratio, is widely used, since it does not require any symmetry of beam shape. However, selection of proper number of macro-particles is important, because the accuracy depends on it. Emittance, which is calculated by phase-space distribution, is especially affected by the number of macro-particles. In order to study the relation between the number of macro-particles and the resolution in the phase space, we defined a transformation, which describes reduction process of macro-particle number, and analyzed static phase space distribution. As a next step, we studied the effect of the macro-particle number on the dynamics of the phase space distribution for 1D charged particle distribution in the rest frame. The numerical result shows that the number of macro-particles affected the phase space distribution around the head and the tail of the bunch.
* T. Miyajima, "Effect of number of macro particles in phase space distribution", in Proc. of IPAC2015, Richmond, VA, USA, pp.242-244 (2015).

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-TUPRC003

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THOP08

Beam Commissioning of the i-BNCT Linac

760

THPLR056

use link to see paper's listing under its alternate paper code

F. Naito, S. Anami, Z. Fang, K. Futatsukawa, Y. Honda, Y. Hori, M. Kawamura, H. Kobayashi, T. Kurihara, T. Miura, T. Miura, T. Miyajima, T. Obina, F. Qiu, Y. Sato, T. Shibata, M. Shimamoto, A. Takagi, E. Takasaki, M. Uota
KEK, Ibaraki, Japan
S. Fujikura
ICEPP, Tokyo, Japan
K. Ikegami
J-PARC, KEK & JAEA, Ibaraki-ken, Japan
H. Kumada, Su. Tanaka
Tsukuba University, Graduate School of Comprehensive Human Sciences, Ibaraki, Japan
Y. Liu, T. Maruta
KEK/JAEA, Ibaraki-Ken, Japan
A. Miura
JAEA/J-PARC, Tokai-mura, Japan
N. Nagura, T. Ohba
Nippon Advanced Technology Co., Ltd., Tokai, Japan
T. Onishi
Tsukuba University, Ibaraki, Japan
T. Ouchi
ATOX, Ibaraki, Japan

The beam commissioning of the linac for the boron neutron capture therapy of Ibaraki prefecture (i-BNCT) has been started. The accelerator of i-BNCT consists of the 3-MeV RFQ and 8-MeV DTL. The design of RF structure of them is based on the J-PARC linac. After the first demonstration of neutron production on December 2015, significant modifications to the linac were given in order to increase the operation stability and the beam power. The progress of the beam commissioning of the i-BNCT will be presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2016-THOP08

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)