Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-12T10:37:58.170Z Has data issue: false hasContentIssue false
  • English
  • Français

Review of Methods of Intensity Calibration in the Spectral Range 10–4000 Å

Published online by Cambridge University Press:  14 August 2015

R. W. P. Mc Whirter
R. W. P. Mc Whirter*
Affiliation:
Astrophysics Research Unit, Culham Laboratory, Abingdon, Berkshire, England

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this paper the bases of the various methods of intensity calibration in the vacuum ultraviolet will be examined. The remarks will be directed primarily at the problem of the measurement of spectral intensities from the sun from above the Earth's atmosphere. It is here that the requirements for intensity calibration are most demanding because of the greater sophistication and because the available range of the spectrum is more extensive. For the stars and other distant astronomical objects, hydrogen absorption limits the spectrum to wavelengths longer than about 900 Å although it transmits again in the soft X-ray region. Some reference will also be made to the problem of intensity calibration as it applies to laboratory spectroscopy, particularly where the object of the laboratory work is to measure astrophysically interesting rate coefficients or cross sections.

Type
Part III: UV Astronomy
Information
Symposium - International Astronomical Union , Volume 41: New Technique in Space Astronomy , 1971 , pp. 369
Copyright
Copyright © Reidel 1971 

References

Bibliography

A. GENERAL REVIEWS

Griem, H. R.: 1964, Plasma Spectroscopy, McGraw-Hill, New York, Chapter 12. The intensity calibration problem is discussed rather briefly with particular reference to Black Body radiators such as the tungsten ribbon lamp and carbon arc.Google Scholar
Samson, J. A. R.: 1967, Techniques of Vacuum Ultra-Violet Spectroscopy, Wylie, New York, Chapter 8. The majority of this chapter is given to a discussion of methods depending on ionization of gas and thermal detectors are discussed in some detail. Synchrotron radiation, branching ratios and a special method for Lα radiation are discussed briefly.Google Scholar
Schreider, E. Ya.: 1965, Soviet Phys./Technical Phys. 9, 1609. This is a useful review of the situation seven or eight years ago. The paper lists over a hundred references.Google Scholar
Various Authors. ‘Calibration Methods in the Ultraviolet and X-Ray Regions of the Spectrum.’ A report on a Symposium at Munich in May 1968. Report No. ESRO SP-33. (Published by the European Space Research Organization.) Google Scholar

B. STANDARD SOURCES IN THE VISIBLE AND NEAR ULTRAVIOLET

Kostkowski, H. J. and Lee, R. D.: 1962, ‘Theory and Methods of Optical Pyrometry’, NBS Monograph No. 41.CrossRefGoogle Scholar

C. THE OPTICALLY THICK ARC

Boldt, G.: 1968, ‘Thermal Plasma as a Radiation Standard for Wavelengths Greater than 1000 Å’, Paper read at an ESRO Symposium on calibration methods published in a report No. ESRO SP-33 (December), p. 45.Google Scholar
Boldt, G.: 1969, ‘Das thermische Plasma als Intensitätsnormalstrahler im Wellenlangenbereich von 1100 bis 3100 Å’, Report Number MPI-PAE/Extraterr. 29 (July). From the Max-Planck-Institut für Physik and Astrophysik, Munich.CrossRefGoogle Scholar

D. SYNCHROTRON RADIATION

Haensel, R. and Kunz, C.: 1967, Z. Angew. Phys. 26, 276. This is a useful review of work using synchrotron radiation.Google Scholar
Lang, J.: 1969, Report ARU-R1 Culham Laboratory, Abingdon, Berks. (June). This paper describes a computer calculation to calculate the spectral intensity angular distribution and polarization of synchrotron radiation. It has been submitted for publication in Computational Physics. Google Scholar
Schwinger, J.: 1949, Phys. Rev. 75, 1912; and Proc. Nat. Acad. Sci. 40 (1954), 132. These papers develop the basic theory of synchrotron radiation.CrossRefGoogle Scholar
Tomboulian, D. H. and Hartman, P. L.: 1956, Phys. Rev. 102, 1423. This is a very useful introductory paper to synchrotron radiation.CrossRefGoogle Scholar

E. BRANCHING RATIOS METHOD

McWhirter, R. W. P. and Griffin, W. G.: 1961, Proc. Conf. Opt. Instr. London, p. 41, Chapman and Hall, London, 1962.Google Scholar

F. METHODS DEPENDING ON STANDARD DETECTORS

Madden, R. P.: Paper in ESRO Report No. ESRO SP-33, p. 111.Google Scholar
Samson, J. A. R.: ESRO Report No. ESRO SP-33, p. 137.Google Scholar