Low temperature multi-alkali photocathode processing technique for sealed intensified CCD tubesA low temperature photocathode process has been used to fabricate an intensified CCD visual photocathode image tube, by incorporating a thinned, backside-illumined CCD as the target anode of a digicon tube of Hubble Space Telescope (HST) design. The CCD digicon tube employs the HST's sodium bialkali photocathode and MgF2 substrate, thereby allowing a direct photocathode quantum efficiency comparison between photocathodes produced by the presently employed low temperature process and those of the conventional high temperature process. Attention is given to the processing chamber used, as well as the details of gas desorption and photocathode processing.
Document ID
19900056229
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Doliber, D. L. (Science Applications International Corp. San Diego, CA, United States)
Dozier, E. E. (Science Applications International Corp. San Diego, CA, United States)
Wenzel, H. (EG&G Energy Measurements Pleasanton, CA, United States)
Beaver, E. A. (Science Applications International Corp. San Diego, CA, United States)
Hier, R. G. (California, University La Jolla, United States)