Supported by National Basic Research Programme of China (2002 CB713600)
A cesium telluride (Cs 2 Te) photocathode with a quantum efficiency of 13% at 253.7 nm (radiant incidence 200 μW/cm 2 ) is fabricated by tellurium and cesium vapor deposition onto a stainless-steel substrate. The...
Supported by National Basic Research Programme of China (2002CB713600)
A method based on circuit model is used to tune the first home-made 9-cell TESLA type superconducting niobium cavity at Peking University. After tuning, a flat field profile with a final π-mode frequency within 3 kHz...
Supported by National Basic Research Program of China (2002CB713600)
Niobium is widely used in SRF (Superconducting Radio Frequency) cavities due to its excellent superconductivity and workability. With the continuous development of technology, higher demands of material are raised. ...
Supported by National Basic Research Program(2002CB713600);NSFC(10775010)
An updated main coupler has been designed for the superconducting accelerator of Free Electron Laser (FEL) project under construction in Peking University. A capacitive structure is chosen for the main coupler. Nume...