accesses since 10 Mar 2016


1 Apr 2018

Version 2.0.0 released.

4 Sep 2017

A preliminary data process software released.

4 Sep 2017

A new version (2.0.0-build201) released.

4 May 2017

Linux version released.

13 Jun 2016

New version of software and core module uploaded.

28 Apr 2016

Software and core module uploaded.

10 Mar 2016

The new site is in preparation...

This is going to be a major version up of the Opencore NMR project. I plan to release resources in April 2016.

Previous Version

Please note that pulse programs used for the previous version cannot be used in the current version.

Go to page of the previous version.

Publications on Opencore NMR

Highly Customized NMR Systems Using an Open-Resource, Home-Built Spectrometer

To suggest the possibility of the Opencore NMR spectrometer, its applications for highly customized, often exotic purposes are demonstrated.

Annual Reports on NMR Spectroscopy 74 (2011) 355-393


OPENCORE NMR: Open-source core modules for implementing an integrated FPGA-based NMR spectrometer

In this work the name "Opencore NMR" was given, in the spirit of opening the developed FPGA core-moudules to public, so that anyone who are interested in the project can use them, together with board design, software, etc. In addition, a number of the conventional solid-state experiments were demonstrated, including 1H-13C-15N triple resonance, multiple-pulse decoupling, two-dimensional experiments, and so on.

Journal of Magnetic Resonance 192 (2008) 218-229


A highly integrated FPGA-based nuclear magnetic resonance spectromete

This was the very first publication on the topic, in which the concept of integrating all digital function in a single FPGA chip was put forth, together with demonstration of the feasibility of the FPGA-based NMR spectrometer.

Review of Scientific Instruments 78 (2007) 033103


Selected published results produced with Opencore NMR

Electro-mechano-optical detection of nuclear magnetic resonance

The first demonstration of NMR-signal up-conversion from rf to light.

Optica 5 (2018) 152-158; doi:10.1364/OPTICA.5.000152

Magic-angle adjustment with X0-shimming

Precise adjustment of the magic angle is demonstrated by tilting the static field using what we call X0 (x-zero) shimming.

Journal of Magnetic Resonance 256 (2015) 1-8 DOI: 10.1016/j.jmr.2015.04.007

Microcoil wound with a paramagnetic-liquid-filled copper capillary

Susceptibility cancellation of a microcoil wound with a paramagnetic-liquid-filled copper capillary

Journal of Magnetic Resonance 258 (2015) 1-5 DOI: 10.1016/j.jmr.2015.06.003


COMPOZER-based longitudinal cross-polarization via dipolar coupling under MAS.

Journal of Magnetic Resonance 245 (2014) 94-97 DOI: 10.1016/j.jmr.2014.06.003

In-situ 7Li NMR of lithium ion batteries

Lithium metal deposition during overcharge was observed.

J. Electrochem. Soc. 2015 162(6): A952-A958

Relaxation in practical lithium ion batteries was studied.

Carbon 79 (2014) 380-387 DOI: 10.1016/10.1149/2.0411506jes DOI: 10.1016/j.carbon.2014.07.080

DOuble NUTation (DONUT) decoupling

We studied the effect of proton decoupling under double nutation irradiation.

Journal of Chemical Physics 141 (2014) 224202 DOI: 10.1063/1.4903173

Paramagnetic shimming

Paramagnetic shimming for wide-range variable-field NMR

Journal of Magnetic Resonance 246 (2014) 57-61 DOI: 10.1016/j.jmr.2014.06.022

Extension to MRI

Application to MRI was successful, with some elaborate customization of the hardware.

IEEE Transaction on Applied Superconductivity 23 (2013) 4400904 DOI:10.1109/TASC.2013.2239342

Dual-receiver and covariance HETCOR

Phys. Chem. Chem. Phys. 14 (2012) 9715-9721 DOI: 10.1039/C2CP41191A

Elemental analysis by NMR

Journal of Magnetic Resonance 224 (2012) 48-52 DOI: 10.1016/j.jmr.2012.09.004

Quantitative CP

We studied QUantitative Cross-Polarization (QU-CP) under moderate MAS speed (23 kHz), re-examining the CP polarization transfer from 1H to 13C and the thermal equalization of the 13C magnetizations.

Journal of Magnetic Resonance 214 (2012) 340-345 DOI: 10.1016/j.jmr.2011.11.014

Disk MAS

This paper proposes nondestructive high-resolution solid-state NMR of rotating thin films at the magic-angle, realized by spinning a disk-shaped attachment on top of the conventional rotor.

Journal of Magnetic Resonance 213 (2011) 192-195 DOI: 10.1016/j.jmr.2011.09.013


A work on noise reduction by dynamic signal preemphasis. "APRICOT" stands for APodization after Receiver-gain InCrement during Ongoing sequence with Time.

Journal of Magnetic Resonance 208 (2011) 3050-308 DOI: 10.1016/j.jmr.2010.11.017

Double-resonance Magic Angle Coil Spinning

Journal of Magnetic Resonance 202 (2010) 274-278 DOI: 10.1016/j.jmr.2009.10.011