Development of frequency tunable sub-THz gyrotrons for application to sensitivity enhancement of NMR spectroscopy

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360134
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: University of Fukui
• Principal Investigator: IDEHARA Toshitaka 福井大学, 遠赤外領域開発研究センター, 特任教授 (80020197)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: DNP-NMR 分光 / ジャイロトロン / サブテラヘルツ / 世界最高周波数 / ESR 分光 / NMR 分光

Outline of Final Research Achievements

By irradiation of high power sub-THz radiation on the sample, we can transfer the polarization of electron spins to nuclear spins and as the result, enhance the sensitivity of NMR spectroscopy by higher than 1000 times for application to analysis of complicated protein molecule. For such objectives, we have developed two 460GHz gyrotrons with following functions; frequency tunability, high power of 100W and long term continuous stable operation during longer than ten hours.
We have installed these two gyrotrons on 700 MHz NMR spectrometer at Osaka University, Institute of Protein Research for DNP-NMR experiment and succeeded in the highest frequency DNP-NMR spectroscopy.

Free Research Field

テラヘルツ波理工学