A new approach to stroboscopic resonance measurements of the nuclear quadrupole interaction
- 20 Downloads
A new stroboscopic resonance method for the measurement of the quadrupole interaction of long-lived nuclear isomers excited by pulsed beams with a fixed repetition frequency is demonstrated. The method utilizes the phenomenon of beats which occurs when a magnetic perturbation is introduced in the presence of a pure quadrupole interaction. The nuclear precession is thus controlled by the beat frequencies which can be varied by the external magnetic field which is oriented parallel to the symmetry axis of the crystal. Stroboscopic resonance can be achieved by varying thebeat frequency to be an integral multiple of the beam pulsing frequency. The method is demonstrated using the 398 keV level of69Ge excited and recoil implanted into a single crystal of tin by means of a heavyion reaction.
KeywordsExternal Magnetic Field Pulse Frequency Repetition Frequency Quadrupole Interaction Beat Frequency
Unable to display preview. Download preview PDF.
- J. Christiansen, H.E. Mahnke, E. Recknagel, D. Riegel, G. Schatz, G. Weyer and W. Witthun, Phys. Rev. C 1 (1970) 613.Google Scholar
- G. Schatz, R. Brenn and D.B. Fossan, Phys. Lett. 57B (1975) 231.Google Scholar
- K. Alder, H. Albers-Schonberg, E. Heer and T.B. Novey, Helv. Phys. Acta 26 (1953) 761.Google Scholar
- R.S. Raghavan and P. Raghavan, Bull. Am. Phys. Soc. 21 (1976) 661.Google Scholar
- J. Bosse and H. Gabriel, Hyperfine interactions studied in nuclear reactions and decay (vol. I), contributed papers, ed. E. Karlsson and R. Wappling (Almquist and Wiksell, Stockholm, 1974) p. 262.Google Scholar
- H. Frauenfelder and R.M. Steffen, in Alpha-, beta-, and gamma-ray spectroscopy, ed. K. Siegbahn (North-Holland, Amsterdam, 1965) p. 1180.Google Scholar
- W. Bartsch, W. Leitz, H.-E. Mahnke, W. Semmler, R. Sielemann and Th. Wichert, Z. Phys. 21B (1975) 131.Google Scholar
- See, for example, the discussions by G.D. Sprouse, Hyperfine Interactions 2 (1976) 39.Google Scholar