Doty Publications

2023: The LLWG: A Low-loss, Low-cost, Small-diameter THz Waveguide for MAS-DNP in NB Magnets
F David Doty, Glenn N Doty, John Staab, Paul D Ellis, DOTY SCIENTIFIC

A novel waveguide (WG) for the 70-1500 GHz range has been developed that achieves loss more than 100X below that of fundamental-mode waveguides at 400 GHz, comparable to that of the very expensive corrugated waveguides of similar size, but much more manufacturable. Poster presented at the ENC, 2023

2022: A Brief Note Describing Artifact Suppression in NMR Experiments

Dr. Paul D. Ellis. The intent of this paper is to bring clarity to some outstanding efforts to remove unwanted signals from an NMR spectrum.

2021: New Insights From Broadband Simulations Into Small Over-moded Smooth And Corrugated Terahertz Waveguides And Transitions For NMR-DNP

We at Doty have been investigating various ways by which a probe designer can deliver millimeter waves (mmw) efficiently to the sample in a magic angle spinning probe once the mmw have arrived at the probe. The paper summarizing these efforts appeared in the JMRO, i.e. F.David Doty, Glenn N. Doty, John P. Staab, Yuriy Sizyuk, and Paul D.Ellis, , J. of MagneticResonance Open, 6-7, January 2021 (https://doi.org/10.1016/j.jmro.2020.100009). The paper can be found on Science Direct and it is a free download.

2021: P Ellis SAS-PFG Poster ENC 2021

Poster presented at the Virtual 2021 ENC”A Highly Versatile Switched Angle Spinning (SAS) Probe”

2018: Guide For Diffusion Measurements Expanded

Doty Scientific Technical Paper: Daniel Arcos, John Staab, Bibhuti Das, Paul D Ellis, and F. David Doty, Doty Scientific, Inc. 2018.
Part I. Introduction to diffusion measurements and application with a liquids probe.
Part II. Diffusion measurements with MAS and a Magic Angle Gradient (MAG).
Part III. Self-diffusion measurement of water and lipids in model membrane system.

2018: To Deuterate Your Proteins – or Not to Deuterate? That is the Question.

Doty Scientific White Paper: Complexity of the NMR spectrum has lead to the use of High-resolution inverse 1H detection in Solid State NMR spectroscopy for large molecules. Newdevelopments in protein biochemistry and fast spinning have contributed to this rapidly evolvingarea of NMR. Bibhuti Das, Paul Ellis and F. David Doty present a white paper describingrationales and available techniques for these challenging experiments, while asking the question“To Deuterate Your Proteins or Not to Deuterate? That is the Question.”

2018: A Novel Segmented Double-Tuned Quadrature High -field MR Coil With ExceptionalTuning Stability

Poster presented at 2018 ENC

2017: Low-E Inverse Detection MAS Probe and Gradient Spectroscopy in Solid State NMR

ENC poster 2017: Low-E Inverse Detection MAS Probe and Gradient Spectroscopy in Solid StateNMR. Results from a Doty MAS-MAG NMR probe (A MAS probe with Magic Angle Gradients)

2016: S/N in Doty Probes with Increasing MAS Speeds

Signal to Noise Ratio (S/N) in DSI Probes. The Consequences of Increased SampleTemperatures on S/N Ratio in MAS Experiments.

2014 Doty SNR Applet B

Discussion and Instructions for using the Doty S/N app.

2013: An 11 cm, 500 MHz, Hybrid Birdcage with Improved Tuning Range

Presented at ISMRM 2005

2013: RF Coil Technology for Small-Animal MRI

Download a preprint of “RF Coil Technology for Small-Animal MRI”, by F. David Doty, GeorgeEntzminger, Jatin Kulkarni, Kranti Pamarthy and John P. Staab, published in [NMR Biomed. 2007;20: 304-325, published online in Wiley Interscience, at http://www.interscience.wiley.com, DOI:10.1002/nbm.1149].

2013: Technical Poster – The 4-point-drive Litzcage – A Semi-Open MRI RF CP Coil with a WideTuning Range

The 4-point-drive Litzcage – A Semi-Open MRI RF CP Coil with a Wide Tuning Range

2007: Solid State NMR Probe Design

Download a preprint of “Solid State NMR Probe Design”, by F. David Doty, published in[Encyclopedia of Magnetic Resonance – Article posted online (www.interscience.wiley.com) on12/15/07, Copyright © 1996, 2000, 2002, 2007 John Wiley & Sons, Ltd. All rights reserved, DOI:10.1002/9780470034590.emrstm1001].

2007: Probe Design and Construction

Download a preprint of “Probe Design and Construction”, by F. David Doty, published in[Encyclopedia of Magnetic Resonance – Article posted online (www.interscience.wiley.com) on12/15/07, Copyright © 1996, 2000, 2002, 2007 John Wiley & Sons, Ltd. All rights reserved, DOI:10.1002/9780470034590.emrstm1000].

2007: RF Coil Technology for Small-Animal MRI

2006: Using a Cross-coil to Reduce RF Heating by an Order of Magnitude in Triple-resonanceMultinuclear MAS at High Fields

David Doty, Jatin Kulkarni, Christopher Turner, George Entzminger, Anthony Bielecki, “Using aCross-coil to Reduce RF Heating by an Order of Magnitude in Triple-resonance Multinuclear MASat High Fields”, Journal of Magnetic Resonance, Vol 182 , 239-253 (2006).

2005: Advanced Head Gradient Coils

David Doty, “Advanced Head Gradient Coils”, presented at ISMRM 2005, Miami, Florida, USA(2005)

2004: Future Fuels

David Doty, “Future Fuels”, presented at U.N. workshop on Abrupt Climate Change, Paris,(2004).

2002: High-throughput RF Coils for High-field MRI

David Doty, SBIR Phase II grant proposal, “High-throughput RF Coils for High-field MRI,” NIH #R44 EB445-02, (2002).

2002: Development of an Advanced, Intercooled, Ceramic Gas Micro-turbine

David Doty, DOE Proposal, “Development of an Advanced, Intercooled, Ceramic Gas Micro-turbine,” ( 2002).

1999: Practical Aspects of Birdcage Coils

D. Doty, G. E. Entzminger, C. D. Hauck, and J. P. Staab, “Practical Aspects of Birdcage Coils”,in Journal of Magnetic Resonance, Vol 138(1) , 144-154 (1999).

1999: Error-Tolerant RF Litz Coils for NMR/MRI

F.D. Doty, G.E. Entzminger Jr., and C. D. Hauck, “Error-Tolerant RF Litz Coils for NMR/MRI, in Journal of Magnetic Resonance, Vol 140(1) , 17-31 (1999).

1998: Magnetism in NMR Probe Design Part II: HR MAS

D. Doty, Y. A. Yang, and G. E. Entzminger, “Magnetism in NMR Probe Design Part II: HR MAS,”Concepts in Magn. Resn., Vol 10(4) , 239-260 (1998).

1998: Magnetism in NMR Probe Design Part I: General Methods

D. Doty, Y. A. Yang, and G. E. Entzminger, “Magnetism in NMR Probe Design Part I: GeneralMethods,” Concepts in Magn. Resn., Vol 10(3) , 133-156 (1998).

1998: MRI Gradient Coil Optimization

D. Doty, “MRI Gradient Coil Optimization”, in Spatially Resolved Magnetic Resonance , ed. P.Blumler, B. Blumich, R. E. Botto, and E. Fukushima, Wiley-VCH, (1998) .

1996: A Random Walk Toward High Speed Sample Spinning

D. Doty, “A Random Walk Toward High Speed Sample Spinning,” The Encyclopedia of NMRVol. 1 , Wiley, 283-284, (1996).

1992: An Ultra-Compact, Laminar-Flow Cryogenic Heat Exchanger

D. Doty, G. S. Hosford, J. B. Spitzmesser, and J. R. Bittner, “An Ultra-Compact, Laminar-FlowCryogenic Heat Exchanger”, Adv. in Cry. Engr. , Vol 37A, 233-240 (1992). (Presented June, 1991,CEC, Huntsville, AL.)

1991: The Micro-Tube Strip Heat Exchanger

D. Doty and J. D. Jones, “The Micro-Tube Strip Heat Exchanger”, Heat Transfer Engr., 12 , 3,31-41, (1991).

1990: A New Look at the Closed Brayton Cycle1990: A New Look at the Closed Brayton Cycle

D. Doty and J. D. Jones, Proceedings, IECEC-90 , “A New Look at the Closed Brayton Cycle”, 2, 166 – 172 (1990).

1988: Noise in High Power, High Frequency Double Tuned Probes

D. Doty, T. J. Connick, X. Z. Ni, and M. N. Clingan, “Noise in High Power, High Frequency Double Tuned Probes,” Journal of Magnetic Resonance, Vol (77) , 536-549, (1988)

1981: A Multinuclear Double Tuned Probe for Applications with Solids or Liquids Utilizing Lumped Tuning Elements

D. Doty, R. R. Inners, and P. D. Ellis, Journal of Magnetic Resonance., Vol (43) , “A Multinuclear Double Tuned Probe for Applications with Solids or Liquids Utilizing Lumped Tuning Elements,” 399-416 (1981).

1981: Design of High Speed Cylindrical NMR Sample Spinners

D. Doty and P. D. Ellis, Rev. Sci. Instrum., 52 (12), “Design of High Speed Cylindrical NMR Sample Spinners,” 1868-1875 (1981).

Doty Publications