Volume 81, Number 5, March 2008
Article Number 52001
Number of page(s) 4
Section Nuclear Physics
Published online 12 February 2008
EPL, 81 (2008) 52001
DOI: 10.1209/0295-5075/81/52001

Synchrotron-radiation$\hbox{--} $based perturbed angular correlations from 119Sn

C. Strohm1, 2, I. Sergueev2 and U. van Bürck1

1  Physik-Department E13, Technische Universität München - 85748 Garching, Germany
2  European Synchrotron Radiation Facility (ESRF) - P.O. Box 220, 38043 Grenoble, France

received 11 December 2007; accepted in final form 12 January 2008; published March 2008
published online 12 February 2008

We report the observation of $\gamma $-$\gamma $-correlations from 119Sn using nuclear resonant scattering of synchrotron radiation, extending nuclear resonant spectroscopy with 119Sn to vanishing recoilless fractions and new applications. The 23.87 keV M1 (+E2) Ig : 1/2 $\rightarrow$ Ie : 3/2 Mössbauer transition was excited from the ground state, and the time differential correlations between the incident and the scattered photons were recorded for different angles in the plane perpendicular to the incident beam. The experiments were performed on samples of tributyltin-fluoride, which has a very low Lamb-Mössbauer factor at ambient temperature. In the time spectra we observed quantum beats from the static perturbation through electric quadrupole interaction.

23.20.En - Angular distribution and correlation measurements.
76.80.+y - Mössbauer effect; other $\gamma $-ray spectroscopy.
81.05.Lg - Polymers and plastics; rubber; synthetic and natural fibers; organometallic and organic materials.

© EPLA 2008