Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1994-06-15
1996-01-16
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
313364, 25037015, H01J 4014
Patent
active
054850053
ABSTRACT:
An improved X-ray and gamma ray sensitive Vidicon tube having a photoconductor deposited substrate cooled by means of an internal thermoelectric coolers and a heat sink. The cooled photoconductor has a higher resistivity and lower conductivity and hence the device exhibits less dark current.
REFERENCES:
patent: 5233265 (1993-08-01), Takasaki et al.
patent: 5289520 (1994-02-01), Pellegrino et al.
Shapiro Herbert M.
Steady Jacqueline M.
Westin Edward P.
Xicon, Inc.
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