| Budget Amount *help |
¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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| Outline of Final Research Achievements |
The goal of the present work was developing a high sensitivity NQR acquisition method using the double resonance aiming at the development of a compact NQR inspection device enabling material identification of crystal powder samples (10 to 100 mg). We verified whether the NQR signal from the nitrogen nucleus increases as the magnetization of the hydrogen nuclear spin polarized in the high magnetic field transferred to the nitrogen nucleus spin. For the magnetization transfer, it is necessary to transfer the sample from a high magnetic field to a zero magnetic field, so we fabricated a sample moving mechanism using magnetic force. We also developed a compact NQR spectrometer with a low impedance transceiver circuit and its control program. As a result, we succeeded in detecting the NQR signal from pharmaceutical raw materials containing nitrogen atoms (100 mg or less).
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