Rhodium Mössbauer Effect Generated by Bremsstrahlung Excitation
CHENG Yao1,2 , XIA Bing1 , LIU Yi-Nong1 , JIN Qing-Xiu1
1 Department of Engineering Physics, Tsinghua University, Beijing 100084
2 Key Laboratory of Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084
Rhodium Mössbauer Effect Generated by Bremsstrahlung Excitation
CHENG Yao1,2 ;XIA Bing1 ;LIU Yi-Nong1 ;JIN Qing-Xiu1
1 Department of Engineering Physics, Tsinghua University, Beijing 100084
2 Key Laboratory of Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084
关键词 ：
33.45.+x ,
76.80.+y
Abstract ： A method for effectively generating long-lived Mössbauer photons and methods for proving the associated Mössbauer effects are reported. For the first time, we observed resonant propagation and resonant absorption of 40-keV Mössbauer photons emitted from 103 Rh through (γ,γ’) process excited by bremsstrahlung. This is a new efficient way to generate long-lived isomer (>1ms) for Mössbauer spectroscopy with sufficient brilliance. An abnormally large ratio of resonant absorption between horizontal and vertical directions indicates horizontal trapping of Mössbauer photons and anisotropic Mössbauer emission, which can be attributed to gravitational effect on the 103 Rh Mössbauer isomer with extremely narrow 10-19 eV linewidth.
Key words ：
33.45.+x
76.80.+y
出版日期: 2005-10-01
:
33.45.+x
(M?ssbauer spectra)
76.80.+y
(M?ssbauer effect; other γ-ray spectroscopy)
引用本文:
CHENG Yao;XIA Bing;LIU Yi-Nong;JIN Qing-Xiu. Rhodium Mössbauer Effect Generated by Bremsstrahlung Excitation[J]. 中国物理快报, 2005, 22(10): 2530-2533.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I10/2530
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