Development of digital CW EPR spectrometer for in-vivo applications

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K14275
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Measurement engineering
• Research Institution: Osaka University
• Principal Investigator: Akaba Hideo 大阪大学, 基礎工学研究科, 准教授 (00552077)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 磁気共鳴分光器 / 電子スピン共鳴 / 生体EPRイメージング

Outline of Final Research Achievements

The goal of the present work was developing a digital electron spin resonance (EPR) spectrometer aiming at high sensitivity and low cost. We succeeded in acquiring magnetic resonance signal by continuous wave EPR method by fabricating an FPGA receiver board that can acquire high frequency signal of L-band without frequency conversion. In addition, we proposed a new digital automatic suppression control method of reflected wave, and verified it using the signal-processing algorithm implemented on the FPGA. As a result, we successfully developed a digital EPR spectrometer that can operate stably to acquire EPR signals from living animals.

Free Research Field

センシング工学