IPAC2013 - List of Keywords (microtron)

Paper	Title	Other Keywords	Page
MOPEA054	A Review of 14 Years of Operation of Helios2 at SSLS	controls, dipole, cryogenics, gun	199
	Z.W. Li, M. Breese, E.P. Chew, C. Diao, M. Hua, A.W. Wong SSLS, Singapore, Singapore
	In this paper, we present the current status of the superconducting Helios2 Synchrotron and review its major problems and their solutions over the last 14 years. We described how various breakdowns in the cryogenics system, the control system, the RF system, Dipole power supplies, Ring gate valves and helium compressor have all been overcome and what valuable lessons have been learned in operating this machine.

TUPWO014	Downscaling the Energy of the MAMI-B Cascade Towards 100 MeV	injection, dipole, extraction, electron	1910
	M. Dehn, K. Aulenbacher, K.-H. Kaiser, H.-J. Kreidel, V. Schmitt IKP, Mainz, Germany
	Funding: Work supported by DFG (CRC 443/1044) and the German federal state of Rheinland-Pfalz New experiments could benefit from energies of ~100 MeV, significantly lower than 180 MeV which is the lowest energy routinely available with the microtron cascade of MAMI-B. This article describes the difficulties which arise due to the drastically reduced injection energy of the first microtron (RTM-1) and presents the results of the beam tests which have been performed. We suggest a new beam extraction system from RTM-2 which will avoid these problems.

THPWA009	Generation of Laser Compton Scattered Gamma-rays from a 150-MeV Microtron	laser, neutron, scattering, photon	3645
	R. Hajima, C.T. Angell, I. Daito, T. Hayakawa, M. Kando, T. Shizuma JAEA, Ibaraki-ken, Japan H. Ohgaki Kyoto University, Institute for Advanced Energy, Kyoto, Japan
	Funding: This work was supported in part by special coordination funds for promoting science and technology in Japan (Grant No. 066). We have developed a laser Compton scattered gamma-ray source based on a 150-MeV racetrack microtron at Japan Atomic Energy Agency. The microtron equipped with a photocathode RF gun accelerates a single bunch of electrons to collide with a laser pulse from a Nd:YAG laser. We have employed laser pulse compression by stimulated Brillouin scattering to obtain high-flux gamma-rays, > 10⁵ ph/s. The gamma-ray source is a prototype of commercial machine for nuclear security applications, non-destructive detection of nuclear material hidden in a ship cargo. Design and performance of the gamma-ray source are presented.

THPWA011	Concepts of 220 MeV Racetrack Microtron for Non-destructive Nuclear Material Detection System	electron, acceleration, gun, simulation	3651
	T. Hori, T. Kii, R. Kinjo, H. Ohgaki, M. Omer, H. Zen Kyoto University, Institute for Advanced Energy, Kyoto, Japan I. Daito, R. Hajima, T. Hayakawa, M. Kando, H. Kotaki JAEA, Kyoto, Japan F. Sakai SHI, Tokyo, Japan
	Funding: Japan Science and Technology Agency Special Coordination Funds for Promoting Science and Technology (Grant No. 066) A nuclear material detection system (NMDS) using the quasi-monochromatic gamma-ray beam from a laser Compton scattering (LCS) source is proposed for the container inspection, where nuclear resonance fluorescence method is to be employed for the specific isotope identification such as U-235. In the system an electron beam of good quality at about 220-MeV must be provided for LCS. One of the most promising electron source is a compact electron accelerator named racetrack microtron (RTM). Some concepts of RTM suitable for NMDS and expected beam qualities will be presented.

Paper

Title

Other Keywords

Page

MOPEA054

A Review of 14 Years of Operation of Helios2 at SSLS

controls, dipole, cryogenics, gun

199

Z.W. Li, M. Breese, E.P. Chew, C. Diao, M. Hua, A.W. Wong
SSLS, Singapore, Singapore

In this paper, we present the current status of the superconducting Helios2 Synchrotron and review its major problems and their solutions over the last 14 years. We described how various breakdowns in the cryogenics system, the control system, the RF system, Dipole power supplies, Ring gate valves and helium compressor have all been overcome and what valuable lessons have been learned in operating this machine.

TUPWO014

Downscaling the Energy of the MAMI-B Cascade Towards 100 MeV

injection, dipole, extraction, electron

1910

M. Dehn, K. Aulenbacher, K.-H. Kaiser, H.-J. Kreidel, V. Schmitt
IKP, Mainz, Germany

Funding: Work supported by DFG (CRC 443/1044) and the German federal state of Rheinland-Pfalz
New experiments could benefit from energies of ~100 MeV, significantly lower than 180 MeV which is the lowest energy routinely available with the microtron cascade of MAMI-B. This article describes the difficulties which arise due to the drastically reduced injection energy of the first microtron (RTM-1) and presents the results of the beam tests which have been performed. We suggest a new beam extraction system from RTM-2 which will avoid these problems.

THPWA009

Generation of Laser Compton Scattered Gamma-rays from a 150-MeV Microtron

laser, neutron, scattering, photon

3645

R. Hajima, C.T. Angell, I. Daito, T. Hayakawa, M. Kando, T. Shizuma
JAEA, Ibaraki-ken, Japan
H. Ohgaki
Kyoto University, Institute for Advanced Energy, Kyoto, Japan

Funding: This work was supported in part by special coordination funds for promoting science and technology in Japan (Grant No. 066).
We have developed a laser Compton scattered gamma-ray source based on a 150-MeV racetrack microtron at Japan Atomic Energy Agency. The microtron equipped with a photocathode RF gun accelerates a single bunch of electrons to collide with a laser pulse from a Nd:YAG laser. We have employed laser pulse compression by stimulated Brillouin scattering to obtain high-flux gamma-rays, > 10⁵ ph/s. The gamma-ray source is a prototype of commercial machine for nuclear security applications, non-destructive detection of nuclear material hidden in a ship cargo. Design and performance of the gamma-ray source are presented.

THPWA011

Concepts of 220 MeV Racetrack Microtron for Non-destructive Nuclear Material Detection System

electron, acceleration, gun, simulation

3651

T. Hori, T. Kii, R. Kinjo, H. Ohgaki, M. Omer, H. Zen
Kyoto University, Institute for Advanced Energy, Kyoto, Japan
I. Daito, R. Hajima, T. Hayakawa, M. Kando, H. Kotaki
JAEA, Kyoto, Japan
F. Sakai
SHI, Tokyo, Japan

Funding: Japan Science and Technology Agency Special Coordination Funds for Promoting Science and Technology (Grant No. 066)
A nuclear material detection system (NMDS) using the quasi-monochromatic gamma-ray beam from a laser Compton scattering (LCS) source is proposed for the container inspection, where nuclear resonance fluorescence method is to be employed for the specific isotope identification such as U-235. In the system an electron beam of good quality at about 220-MeV must be provided for LCS. One of the most promising electron source is a compact electron accelerator named racetrack microtron (RTM). Some concepts of RTM suitable for NMDS and expected beam qualities will be presented.