Author: Kawata, H.
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MOIDCC001
Update on the KEK ERL Test Facility (cERL)  
 
  • H. Kawata
    KEK, Ibaraki, Japan
 
  The test facility of Compact ERL (cERL) was constructed to develop critical accelerator components for future light sources. The target of cERL is to realize the ERL operation under the conditions of low emittance (lower than 1 mm mrad) with high current (averaged current of 10 mA). Our group presented the construction and initial commissioning result at the previous ERL15 workshop. After that, we have made an effort to update the performance, so that we have succeeded the ERL operation under the conditions of beam current of 1mA with lower emittance of 1mm mrad. At the bunch charges of 0.5 pC and 7.7 pC, the beam emittance was demonstrated at the March of 2016 as 0.3 mm mrad and 1-1.8 mm mrad, respectively. We also achieved the stable beam operation at the conditions of 1mA with 162.5 MHz with a small beam loss, so that it is expected to be possible to operate 10 mA at cERL with a present radiation shielding geometry. Furthermore, recently, we have made an effort to realize the beam development under high bunch charge (40 pC/bunch) operation. I will present these updated developments from the previous ERL15 workshop.  
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TUIBCC004
Applications by Means of the Accelerator Technologies Based on cERL  
 
  • H. Kawata
    KEK, Ibaraki, Japan
 
  The cERL has been constructed for the test facility so as to demonstrate the ERL operation as the view point of the accelerator technologies. Therefore, the application programs by using cERL are not the main purpose. However, we have demonstrated several test productions such as laser Compton scattering X-ray production and THz radiation. Furthermore, we have tried to draw several industrial applications such as EUV-FEL light source, security systems for nuclear material based on gamma-ray production by means of laser Compton scattering, high resolution medical x-ray imaging systems, and so on. I will present these activities at the workshop.  
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