Title :
Progress on Lead Photocathodes for Superconducting Injectors
Author :
J. Smedley;T. Rao;J. Sekutowicz;P. Kneisel;J. Langner;P. Strzyzewski;R. Lefferts;A. Lipski
Author_Institution :
BNL, Upton, New York
fDate :
6/27/1905 12:00:00 AM
Abstract :
We present the results of our investigation of bulk lead, along with various types of lead films, as suitable photocathode materials for superconducting RF injectors. The quantum efficiency of each sample is presented as a function of the photon energy of the incident light, from 3.9 eV to 6.5 eV. Quantum efficiencies of 0.5% have been obtained. Production of a niobium cavity with a lead-plated cathode is underway.
Keywords :
"Cathodes","Niobium","Cleaning","Substrates","Superconducting materials","Copper","Coatings","Rough surfaces","Surface roughness","Superconducting films"
Conference_Titel :
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN :
0-7803-8859-3
Electronic_ISBN :
2152-9582
DOI :
10.1109/PAC.2005.1591195
