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Digitale Medien

Mössbauer isomer shift measurements without mechanical tuning (1989)

Sinor, T. W. ; Reittinger, P. W. ; Collins, C. B.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 60 (1989), S. 3258-3261

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ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: A technique is described which demonstrates how a frequency modulation spectrometer (FMS) can be used to measure the isomer shift of ferromagnetic absorbers without mechanical tuning. As an example, the isomer shift of an iron sample relative to a 57Co source in a Pd matrix was measured and found to be −(0.1869±0.003) mm/s compared to the literature value of −(0.185±0.02) mm/s.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1141077

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Digitale Medien

Frequency-modulation spectrometer for Mössbauer studies (1988)

Reittinger, P. W. ; Sinor, T. W. ; Wagal, S. S. ; [weitere]

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 59 (1988), S. 362-367

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ISSN: 1089-7623

Quelle: AIP Digital Archive

Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik

Notizen: A nuclear frequency-modulation spectrometer (NFMS) for high-resolution gamma-ray spectroscopy is described in this article. As the name implies, this device operates by modulating the cross section for gamma-ray absorption. The automation of this spectrometer required the development of an interface to an Apple computer which provides a real-time data display. This interface also enables the Apple computer to control up to two Mössbauer spectrometers at once, with a real-time data display for each. A nuclear frequency-modulation spectrometer makes it possible to observe directly the phenomenon known as "rf sidebands'' in Mössbauer spectroscopy, without interference from the "parent transitions.'' The high resolution of NFMS makes it possible to examine the "rf sidebands'' for any fine structure.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.1140205

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