Abstract

An image orthicon camera operated according to the cycle described in this paper appears capable of extending the astronomer’s limit of detection 3–4 stellar magnitudes lower than can be obtained with 103a0 film in the same exposure interval. When operating a tube with an S20 photocathode and a metal-oxide storage target at −20°C, it has been possible to continue to integrate a low-level input for as long as 3 hr. Various anomalies related to this type operation with point images have been observed. The causes and means for overcoming them are discussed.

© 1964 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
An Image Tube Camera for Photography of Plasmas

A. E. Huston
Appl. Opt. 3(11) 1231-1234 (1964)

Image Intensifiers and the Scotoscope

G. A. Morton
Appl. Opt. 3(6) 651-672 (1964)

Problem of Infrared Television-Camera Tubes vs Infrared Scanners

J. A. Hall
Appl. Opt. 10(4) 838-844 (1971)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (23)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (10)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription