Study of the transmissive photocathode DC gun based on diamond-like films at JINR

Development of the original transmissive photocathode conception is going on in JINR. Results of charge extraction from thin-film diamond-like carbon (DLC) photocathodes are presented. DLC films were prepared using both methods of reactive magnetron sputtering of carbon target in the mixture of Ar and H2(D2) gases and vapor deposition CH4+D2(H2)+Ar.