Paper | Title | Page |
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WG102 | Construction and Commissioning of Compact-ERL Injector at KEK | 16 |
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The Compact Energy Recovery Linac (cERL) is under construction at KEK for the future 3-GeV ERL project. During the past year, we have finished key devices, such as a 500-kV DC photocathode electron gun and superconducting (SC) cryomodules for the injector and for the main linac. We installed these devices into a shielding room of the cERL, and carried out high-voltage or high-power tests successfully. In the April of 2013, the 5-MeV injector of the cERL was completed. During April to June in 2013, we commissioned the cERL-injector successfully, and carried out beam tuning and studies. We will present the construction and commissioning of the cERL injector, together with the construction status of a return loop. | ||
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Slides WG102 [6.910 MB] | |
WG109 |
DC Photoemission Gun Development for the Compact ERL | |
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The next generation ERL light sources require a high brightness and high current electron gun. We have developed a DC photoemission electron gun for the Japanese ERL light source project. This DC gun employs a segmented insulator with guard rings to protect the insulator from field emission generated from central stem electrode. We have successfully applied 500kV on the ceramics with a cathode electrode in place and generated beam from the 500kV gun at Japan Atomic Energy Agency (JAEA) in October 2012. The gun was transferred to the compact ERL (cERL) at KEK for commissioning of the cERL injector. Details of the 500keV beam generation at JAEA as well as beam operational experience at the cERL will be presented. | ||
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Slides WG109 [1.342 MB] | |