抄録
Offer Organization: Japan Society for the Promotion of Science, System Name: Grants-in-Aid for Scientific Research, Category: Grant-in-Aid for Scientific Research (C), Fund Type: competitive_research_funding, Overall Grant Amount: - (direct: 0, indirect: 0)
All of the Mossbauer spectra have been measured by using the Doppler modulation since the discovery of the Mossbauer effect. The Doppler moduration technique has contributed to the establishment of the Mossbauer spectoscopy as one of the most valuable experimental tools in the fields of not only the nuclear physics but also solid state chemistry. However, we should observe the Mossbauer resonance, if the Mossbauer energy level of source unclide is made to hyperfine split under applied external magnetic field and the energy of the emitted gamma-ray is equivalent to one of the energy difference between the excited and ground states of an absorber. In this research, we have developed the new measuring system under strong magnetic field without utilizing the Doppler effect in order to apply to the in-beam Mossbauer spectroscopy for magnetism investigations.
(1) Production of the Mossbauer gamma-rays detector (parallel Plate Avalanche Counter) and evaluation of the performance
(2) Evaluation of the cryostat with a superconducting solenoid magnet
(3)Measurement of the Mossbauer spectrum with magnetic modulation