Result of Tests on the FRECH 1 Gun and Definition of the FRECH 2 Gun of the CRYEBIS Source

摘要

The operations currently performed on a Frost type gun which was built at SEA are summarized. This FRECH 1 gun (Frost scale 1) has a cathode 18 mm in diameter. It has been very satisfactory, with the voltages, currents, and densities obtained essentially conforming to the expectations. The specific operation conditions of the CRYEBIS source have led to a FRECH 1 homothetic gun having a 36-mm cathode (scale 2) pierced at its center so as to permit the injection of polarized neutral atoms. This FRECH 2 gun is presented, and the tests will have to be performed in the coming months. (ERA citation 05:006121)