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Design and Construction of Low-Cost EPR Spectrometers for Education
New Phys.: Sae Mulli 2018; 68: 225~231
Published online February 28, 2018;
© 2018 New Physics: Sae Mulli.

Zeehoon JANG*

Department of Physics, Kookmin University, Seoul 02707, Korea
Correspondence to:
Received December 8, 2017; Revised January 2, 2018; Accepted January 8, 2018.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Electron paramagnetic resonance (EPR) spectroscopy, which is currently used in various research fields, will be a very important research technique for future researchers. However, because not many experimental apparatuses are suitable for education, experimental education of EPR spectroscopy is not proceeding well in undergraduate courses. The EPR spectrometers applied in research are not used by inexperienced undergraduate student education because of potential problems such as equipment damage. Nonetheless, education on the EPR technique for future researchers is very important and necessary. We have designed and constructed a low-cost EPR spectrometer for educational purposes. The EPR spectrometer described in this paper does not use a radiofrequency (RF) cavity or a waveguide, both of which are hard to use, but is constructed using easy-to-use LC resonators, coaxial cables, and commercially-available RF devices. The EPR spectrometer designed in this way is simple in construction, so undergraduates can easily assemble it and perform experiments. In this way, students will be able to acquire practical experience with equipment production and operation.
PACS numbers: 01.50.My, 01.50.Pa, 76.30.-v, 76.60.-k
Keywords: Electron paramagnetic resonance, Nuclear magnetic resonance, LC resonator, Instrument for education

February 2018, 68 (2)
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