Synchrotron Radiation Sources for Photobiology and Ultraviolet, Visible and Infrared Spectroscopy

  • J. C. Sutherland


Maxwell’s equations show that an accelerating electrical charge emits electromagnetic radiation. The emission of radio waves by electrons oscillating within an antenna is a familiar example of this effect. Electrons moving through a vacuum can be accelerated radially by a magnetic field oriented perpendicularly to their direction of motion. The high energy electrons circulating within a synchrotron experience a centripetal acceleration each time they pass through a bending magnet. Electrons whose path is bent by the magnetic field emit photons along the direction tangential to their path. Thus at each bending magnet around a synchrotron ring, radiation is emitted in a fan-shaped distribution; the limits of the “fan” are the directions of travel of the electrons before entering and after leaving the bending magnet. The radiation covers a very broad spectral range as shown in Fig. 1; this is the most important feature of synchrotron radiation.


Circular Dichroism Synchrotron Radiation Storage Ring Magnetic Circular Dichroism Synchrotron Radiation Source 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Alpert, B., and Lopez-Delgado, R., 1976, Fluorescence lifetimes of haem proteins excited into the tryptophan absorption band with synchrotron radiation, Nature,263:445–446.CrossRefGoogle Scholar
  2. Blumberg, L. N., 1979, Vertical kicker for fluorescence decay experiments in the NSLS VUV ring, “BNL Report -26856”.Google Scholar
  3. Brahms, S., and Brahms, J., 1980, Determination of protein secondary structure in solution by vacuum ultraviolet circular dichroism, J. Mol. Biol., 138:149–178.CrossRefGoogle Scholar
  4. Castellani, A., and Quercia, I. F., 1979, “Synchrotron radiation applied to biophysical and biochemical research”. Plenum Press, New York.Google Scholar
  5. Ito, T., Kobayashi, K., and Ito, A., 1980, Effects of broad-band vacuum-UV synchrotron radiation on wet yeast cells, Radiation Research, 82:364–373.CrossRefGoogle Scholar
  6. Johnson, W. C. and Tinoco, I., 1972, Circular dichroism of polypeptide solutions in the vacuum ultraviolet, J. Am. Chem. Soc., 94:4389–4390.CrossRefGoogle Scholar
  7. Johnson, W. C., Jr., 1978, Circular dichroism spectroscopy and the vacuum ultraviolet region, Ann. Rev. Phys. Chem. in the press.Google Scholar
  8. Munro, I., Pecht, I., and Stryer, L., 1979, Subnanosecond motions of tryptophan residues in proteins, Proc. Natl. Acad. Sci. U. S., 76:56–60.CrossRefGoogle Scholar
  9. Pysh, E. S., 1976, Optical activity in the vacuum ultraviolet, Ann. Rev. Biophys. Bioengr., 5:63–75.CrossRefGoogle Scholar
  10. Shulman, R. G., Eisenberger, P. and Kincaid, B. M., 1978, X-ray absorption spectroscopy of biological molecules,Ann. Rev. Biophys. Bioeng., 7:559–578.CrossRefGoogle Scholar
  11. Snyder, P. A. and Rowe, E. M., 1980, The first use of synchrotron radiation for vacuum ultraviolet circular dichroism measurements, Nuclear Instrumentation and Methods, in press.Google Scholar
  12. Sprecher, C. A., Baase, W. A. and Johnson, W. C., Jr., 1979, Conformation and circular dichroism of DNA, Biopolymers, 18:1009–1019.CrossRefGoogle Scholar
  13. Wright, F., 1980, “Ultrasoft x-ray microscopy,” Annl. N. Y.Acad. Sci., 342.Google Scholar

Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • J. C. Sutherland
    • 1
  1. 1.Biology DepartmentBrookhaven National LaboratoryUptonUSA

Personalised recommendations