| Paper | Title | Other Keywords | Page |
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| TUPPP045 | Creation of FELWI using Large Amplification Regime | electron, undulator, FEL, resonance | 1707 |
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Funding: ISTC project A-1602 The interaction between noncollinear laser and relativistic electron beams in static magnetic undulator has been studied within the framework of dispersion equations. In the limit of small-signal gain the spatial growth rates are found for the collective (Raman) and single-electron (Thompson) regimes. For a free-electron laser without inversion (FELWI), estimates of the threshold laser power are found. The large-amplification regime should be used to bring an FELWI above the threshold laser power. |
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| THPPR026 | Automated Phase Optimization for the HDSM at MAMI | synchrotron, linac, injection, acceleration | 4020 |
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Funding: This work has been supported by CRC 443 of the Deutsche Forschungsgemeinschaft. The Harmonic Double Sided Microtron (HDSM) at Mainz University is a very reliable stage of the 1.6 GeV CW microtron cascade MAMI. Nevertheless setting up and operating the machine depends largely upon an appropriate adjustment of the RF systems. To assist the MAMI operators, a new approach basing on the analysis of the synchrotron oscillation has been developed and enables the optimization of the RF phases of the linacs for the given RF amplitudes. |
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| THPPR027 | Sustaining the Reliability of the MAMI-C Accelerator | electron, controls, linac, klystron | 4023 |
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Funding: This work has been supported by CRC 443 of the Deutsche Forschungsgemeinschaft. A status report of the 1.6 GeV electron accelerator MAMI-C is given together with an outlook towards its future operation. We describe problems which are imposed by some aging technical subcomponents in the first stages which have in part been in operation for almost 30 years. We present measures how to sustain the achieved extremely high reliability during the upcoming new research programs which are foreseen to last at least for one more decade. |
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| THPPR065 | High Flux Laser-Compton Scattered Gamma-ray Source by Compressed Nd:YAG Laser Pulse. | laser, electron, photon, resonance | 4124 |
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| A non-destructive detection system of nuclear materials hidden in cargo containers is under development in Japan Atomic Energy Agency and Kyoto University. The system is able to be used for the identification of isotopes of special nuclear material in a container by employing Nuclear Resonance Fluorescence triggered by mono-energetic Laser Compton Scattered (LCS) gamma-ray tuned at the energy of the nuclear resonance. One of the most important technologies for such system is generation of gamma-rays at a flux of 3 x105 photon/s. In order to achieve this gamma-ray flux with a compact system, a pulse compression system for Nd:YAG laser based on Stimulated Brillouin Scattering (SBS) has been developed. The laser pulse with a duration of 10 ns (FWHM) from a commercially available Nd:YAG laser is compressed down to a few hundreds ps. As a feasibility study of the proposed system, 400 keV gamma-ray generation is performed at Kansai Photon Science Institute by using 150 MeV electron beam from microtron accelerator and compressed Nd:YAG laser. Experimental results of laser pulse compression and gamma-ray generation are presented. | |||
| THPPR066 | Racetrack Microtron for Nondestructive Nuclear Material Detection System | linac, electron, acceleration, gun | 4127 |
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| A nuclear material detection system using the quasi-monochromatic gamma-ray beam from a laser Compton Backscattering source has been proposed for the container inspection, where nuclear resonance fluorescence method would be employed for the specific isotope identification such as U-235. In the system an electron beam of good quality at about 220 MeV for the laser Compton backscattering is required. One candidate for such the practical use is a racetrack microtron which design is based on the existing 150 MeV microtron at JAEA. | |||