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| MOP034 |
Status of FS-FIR Project of the PAL
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112 |
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- J. Choi, H.-S. Kang, C. Kim, I. S. Ko, J. H. Park, S. J. Park, C. M. Yim
PAL, Pohang, Kyungbuk
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At the Pohang Accelerator Laboratory (PAL), a femto-second far infrared radiation (fs-FIR) facility is under construction. It is a THz radiation source using 60-MeV electron linac, which consists of an S-band photocathode RF-gun with 1.6 cell cavity, two S-band accelerating sturctures, two chicane bunch compressors, and a 1-m long planar undulator. We installed the gun and measured the characteristics. In this article, we will present the construction status of the fs-FIR facility as well as the simulation results and the measurement results of the electron gun.
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| TUP004 |
Intense L-Band Electron Linac for Industrial Applications
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250 |
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- B. Park, M.-H. Cho, S. H. Kim, S.-I. Moon, W. Namkung
POSTECH, Pohang, Kyungbuk
- J.-S. Oh, S. J. Park
PAL, Pohang, Kyungbuk
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An intense L-band travelling-wave electron linac is under development for irradiation applications. It is capable of producing 10 MeV electron beams of 30 kW average beam power. The operating energy is limited to prevent neutron production. On the other hand, the current is limited by the beam loading effect in the given structure. The accelerating structure operated with 2π/3 mode is constant-impedance and disk-loaded waveguides. We determined the optimum operating parameters by adjusting the duty factor, which is again governed by the available high-power pulsed klystron. The SUPERFISH code was used to design the bunching and accelerating cavities. The PARMELA code gives the result of beam dynamics. We present design details of the intense travelling-wave linac powered by a 1.3 GHz, 25 MW pulsed klystron with a duty factor of 0.21%. We also present cold test results for the prototype cavities.
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