Abstract

The characteristics of synchrotron radiation emitted by the 6-GeV DESY machine were studied in the spectral range 2200–5500 Å. For this purpose, the synchrotron radiation was compared photoelectrically with the radiation of standardized sources in a nearly differential manner. These sources (tungsten ribbon lamp, Krefft-Rössler uv normal) were calibrated with high accuracy against a blackbody. Good agreement was found between our experimental results and the values predicted by the theory of the synchrotron radiation derived by J. Schwinger. The relative spectral distribution was verified to within about ±2%, and the absolute values of the theoretically predicted flux were ascertained to within about ±15%. For the application of synchrotron radiation as a radiometric standard, in most cases only the relative spectral distribution is important. If one supposes the validity of the theory also in the far uv, and if the synchrotron radiation is calibrated in the visible by a standard source, one can give the absolute flux in the far uv. In this way it is possible to calibrate photometers or sources in the far uv in absolute units with an accuracy of about ±3% with the aid of the synchrotron radiation.

© 1967 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Synchrotron radiation-based irradiance calibration from 200 to 400 nm at the Synchrotron Ultraviolet Radiation Facility III

Ping-Shine Shaw, Uwe Arp, Robert D. Saunders, Dong-Joo Shin, Howard W. Yoon, Charles E. Gibson, Zhigang Li, Albert C. Parr, and Keith R. Lykke
Appl. Opt. 46(1) 25-35 (2007)

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 (7)

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

Equations (5)

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