Present Status of the Compact ERL at KEK

The recirculation loop of the Compact ERL (cERL) was constructed from July to November in 2013 after commissioning of the injector . Then commissioning of the entire cERL was started in December 2013 and the beam could be accelerated up to 20 MeV in a short time . The beam recir culation and ener gy recovery were also achieved without significant beam loss