TY - JOUR
T1 - Evolution of synchrotron-radiation-based Mössbauer absorption spectroscopy for various isotopes
AU - Seto, Makoto
AU - Masuda, Ryo
AU - Kobayashi, Yasuhiro
AU - Kitao, Shinji
AU - Kurokuzu, Masayuki
AU - Saito, Makina
AU - Hosokawa, Shuuich
AU - Ishibashi, Hiroki
AU - Mitsui, Takaya
AU - Yoda, Yoshitaka
AU - Mibu, Ko
N1 - Funding Information:
Acknowledgements This work was supported by JSPS KAKENHI Grant-in-Aid for Scientific Research (S) of Grant No. 24221005. The experiments at SPring-8 were performed with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (2009A0086, 2017A3581).
Publisher Copyright:
© 2017, Springer International Publishing AG.
PY - 2017/11/1
Y1 - 2017/11/1
N2 - Synchrotron-radiation-based Mössbauer spectroscopy that yields absorption type Mössbauer spectra has been applied to various isotopes. This method enables the advanced measurement by using the excellent features of synchrotron radiation, such as Mössbauer spectroscopic measurement under high-pressures. Furthermore, energy selectivity of synchrotron radiation allows us to measure 40K Mössbauer spectra, of which observation is impossible by using ordinary radioactive sources because the first excited state of 40K is not populated by any radioactive parent nuclides. Moreover, this method has flexibility of the experimental setup that the measured sample can be used as a transmitter or a scatterer, depending on the sample conditions. To enhance the measurement efficiency of the spectroscopy, we developed a detection system in which a windowless avalanche photodiode (APD) detector is combined with a vacuum cryostat to detect internal conversion electrons adding to X-rays accompanied by nuclear de-excitation. In particular, by selecting the emission from the scatterer sample, depth selective synchrotron-radiation-based Mössbauer spectroscopy is possible. Furthermore, limitation of the time window in the delayed components enables us to obtain narrow linewidth in Mössbauer spectra. Measurement system that records velocity dependent time spectra and energy information simultaneously realizes the depth selective and narrow linewidth measurement.
AB - Synchrotron-radiation-based Mössbauer spectroscopy that yields absorption type Mössbauer spectra has been applied to various isotopes. This method enables the advanced measurement by using the excellent features of synchrotron radiation, such as Mössbauer spectroscopic measurement under high-pressures. Furthermore, energy selectivity of synchrotron radiation allows us to measure 40K Mössbauer spectra, of which observation is impossible by using ordinary radioactive sources because the first excited state of 40K is not populated by any radioactive parent nuclides. Moreover, this method has flexibility of the experimental setup that the measured sample can be used as a transmitter or a scatterer, depending on the sample conditions. To enhance the measurement efficiency of the spectroscopy, we developed a detection system in which a windowless avalanche photodiode (APD) detector is combined with a vacuum cryostat to detect internal conversion electrons adding to X-rays accompanied by nuclear de-excitation. In particular, by selecting the emission from the scatterer sample, depth selective synchrotron-radiation-based Mössbauer spectroscopy is possible. Furthermore, limitation of the time window in the delayed components enables us to obtain narrow linewidth in Mössbauer spectra. Measurement system that records velocity dependent time spectra and energy information simultaneously realizes the depth selective and narrow linewidth measurement.
KW - Depth selective measurement
KW - Simultaneous acquisition system for timing and energy information
KW - Synchrotron-radiation-based Mössbauer absorption spectroscopy
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U2 - 10.1007/s10751-017-1446-2
DO - 10.1007/s10751-017-1446-2
M3 - Article
AN - SCOPUS:85032014435
VL - 238
JO - Hyperfine Interaction
JF - Hyperfine Interaction
SN - 0304-3843
IS - 1
M1 - 78
ER -