THE MOSSBAUER EFFECT IN IRON-57. Technical Report No. 28
An attempt was made to detect the Mossbauer effect in Fe/sup 57/. The phenomena of resonance fluorescence and recoilless gamma emission and absorption were studied. The intensity of the 14.4-kev radiation from the first excited state of Fe/sup 57/ passing through a resonance absorber which was moved with respect to the source was measured. When the Fe/sup 57/ nuclei were imbedded in a ferromagnetic material, the interaction of the nuclear magnetic moments of the ground and first excited states with the effective magnetic field at the nuclei positions split the 14.4-kev transition into 6 Zeeman components. Polarization phenomena which accompany the Zeeman effect were observed. Assuming Lorentzian emission and absorption spectra, an integral expressing the transmisston of resonance radiation from a source of finite thichness through a resonance absorber is presented. It was found that the transmitted line is approximately a Lorentz curve whose width increases with increasing source and absorber thickness. The characteristics of the transmitted line were found to be strongly dependent on spectral shape. (M.C.G.)
- Research Organization:
- Illinois. Univ., Urbana
- DOE Contract Number:
- ONR 1834(05)
- NSA Number:
- NSA-15-032720
- OSTI ID:
- 4837516
- Report Number(s):
- NP-10829
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- United States
- Language:
- English
Similar Records
EVIDENCE FOR QUADRUPOLE INTERACTION OF Fe$sup 57$m, AND INFLUENCE OF CHEMICAL BINDING ON NUCLEAR GAMMA-RAY ENERGY
POLARIZATION OF Co$sup 57$ IN Fe METAL