Abstract
WHEN two gamma rays that are emitted successively in nuclear de-excitation are detected in coincidence, the coincidence counting rate, W(θ), may depend strongly on the angle θ between their directions of propagation. For the 173–247 keV gamma ray cascade in 111Cd following the decay of 111In, shown in Fig. 1, W(θ) is given by1
where P2 is the Legendre polynomial (3 cos2θ–1)/2, τ is the mean life-time of the intermediate nuclear state (for the 247 keV state of 111Cd, τ = T1/2/ln 2 = 1.21 × 10−7s), t is the time interval between emission of the two gamma rays, and the coefficient A2 = −0.20.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Steffen, R. M., Phys. Rev., 103, 116 (1956).
Karlsson, E., Matthias, E., and Siegbahn, K., eds., Perturbed Angular Correlations (North-Holland, Amsterdam, 1964).
Matthias, E., and Shirley, D. A. eds., Hyperfine Structure and Nuclear Radiations (North-Holland, Amsterdam, 1968).
Stryer, L., J. Mol. Biol., 13, 482 (1965).
Stone, T. J., Buckman, T., Nordio, P. L., and McConnell, H. M., Proc. US Nat. Acad. Sci., 54, 1010 (1965).
Stengle, T. R., and Baldeschwieler, J. D., Proc. US Nat. Acad. Sci., 55, 1020 (1966).
Lederer, C. M., Hollander, J. M., and Perlman, I., Table of Isotopes, sixth ed.(John Wiley and Sons, New York, 1967).
Neurath, H., ed., The Proteins, 2, 215 (Academic Press, New York, 1964).
Marshall, A. G., Biochemistry, 7, 2450 (1968).
Haugland, R. P., Stryer, L., Stengle, T. R., and Baldeschwieler, J. D., Biochemistry, 6, 498 (1967).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
LEIPERT, T., BALDESCHWIELER, J. & SHIRLEY, D. Applications of Gamma Ray Angular Correlations to the Study of Biological Macromolecules in Solution. Nature 220, 907–909 (1968). https://doi.org/10.1038/220907a0
Received:
Issue Date:
DOI: https://doi.org/10.1038/220907a0
This article is cited by
-
Selected applications of perturbed angular correlation of γ-rays (PAC) spectroscopy in biochemistry
Hyperfine Interactions (2010)
-
Radioanalytical and imaging techniques: Challenges and opportunities in biomedical applications
Journal of Radioanalytical and Nuclear Chemistry (2008)
-
PAC research in biology
Hyperfine Interactions (2008)
-
Neutron activation analysis challenges: Problems and applications in biomedical and other areas
Journal of Radioanalytical and Nuclear Chemistry (1999)
-
Determination of the elemental distribution in a sample using neutron induced gamma-ray emission tomography
Journal of Radioanalytical and Nuclear Chemistry (1997)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.
