Publications

De la Cruz, A.; Achtnich, T.; Décosterd, E.; Sevy, E.T.; Asplund, M.C.; Austin, D.E. High-speed rotor for microparticle impact studies. Review of Scientific Instruments, 2023, 94, 063904.

Allred, P.; Christie, E.; Song, Y.; Austin, D.E.; Chiang, S.H.; Hawkins, A. Flow-Through Charge Detection Mass Spectrometry to Categorize Micron-Sized Particles. Review of Scientific Instruments, 2023, 94, 034104.

Major, G.H.; Pinder, J.W.; Austin, D.E.; Baer, D.R.; Castle, S.L.; Čechal, J.; Clark, B.M.; Cohen, H.; Counsell, J.; Herrera-Gomez, A.; Govindan, P.; Kim, S.H.; Morgan, D.J.; Opila, R.L.; Powell, C.J.; Průša, S.; Roberts, A.; Rocca, M.; Shirahata, N.; Šikola, T.; Smith, E.F.; So, R.C.; Stovall, J.E.; Strunk, J.; Teplyakov, A.; Terry, J.; Weber, S.G.; Linford, M.R. Perspective on improving the quality of surface and material data analysis in the scientific literature with a focus on x-ray photoelectron spectroscopy (XPS). Journal of Vacuum Science & Technology A, 2023, 41 (3), 038501.

Gamage, R.W.; Hettikankanange, P.M.; Lyman, K.D.; Austin, D.E.; Taylor, N.R. Simplified coaxial ion trap: simulation-based geometry optimization, unidirectional ejection, and trapping conditions. International Journal of Mass Spectrometry, 2022, 474, 116801.

Hettikankanange, P.M. and Austin, D.E. Varying the aspect ratio of toroidal ion traps: Implications for design, performance, and miniaturization. International Journal of Mass Spectrometry, 2021, 470, 116703.

Austin, D.E. and Lammert, S.A. The Emerging Role of Portable Mass Spectrometry. International Journal of Mass Spectrometry, 2021, 470, 116721.

Rosza, J.; Song, Y.; Kerr, A.; Debaene, N.; Austin, D.E.; Chiang, S.H.; Hawkins, A.R. Optimizing the Noise Performance of Multi-electrode Image Charge Detectors Constructed on Printed Circuit Boards. IEEE Transactions on Instrumentation and Measurement, 2021, 70, 1503308.

Muyizere, T.; Zheng, Y.; Liu, H.; Zhao, J.; Li, J.; Lu, X.; Austin, D.E.; Zhang, Z.P. Metal salt assisted paper spray mass spectrometry for soft ionization of GAP polymers in negative ion mode. Analyst, 2020, 145, 34−45.

Li, J.; Zheng, Y.; Zhao, J.; Austin, D.E.; Zhang, Z.P. Matrix-assisted nanoelectrospray mass spectrometry for soft ionization of metal(I)-protein complexes. Analyst, 2020, 145, 1646−1656.

Gao, J. and Austin, D.E. Mechanistic investigation of charge separation in electrospray ionization using microparticles to record droplet charge state. Journal of the American Society for Mass Spectrometry, 2020, 31, 2044–2052.

Gustafson, E.L.; Murray, H.V.; Caldwell, T.; Austin, D.E. Accurately mapping image charge and calibrating ion velocity in charge detection mass spectrometry. Journal of the American Society for Mass Spectrometry, 2020, 31, 2161–2170.

Song, Y.; Kinnison, W.; Rosza, J.; Austin, D.E.; Hawkins, A.R.; Chiang, S.H. A Compact Measurement Technique for Detector Capacitance of Charge Amplifiers. Proc. IEEE International Symposium of Circuits and Systems, 2020, 20779517. doi: 10.1109/ISCAS45731.2020.9181160

Song, Y.; Rosza, J.; Magalhaes, J.; Smith, S.; Karlinsey, B.; Kinnison, W.; Gustafson, E.L.; Austin, D.E.; Hawkins, A.R.; Chiang, S.H. A solid-state charge detector with gain calibration using photocurrent. IEEE Transactions on Instrumentation and Measurement, 2020, 69, 9398–9407.

Gamage, R.W. and Austin, D.E. The effects of electrode misalignments on the performance of a miniaturized linear wire ion trap mass spectrometer. International Journal of Mass Spectrometry, 2020, 453, 116344. (IJMS Best Student Paper Award)

Avval, T.G.; Gamage, R.W.; Maehl, S.; Fairley, N.; Austin, D.E.; Linford, M.R. Application of Laplace’s equation in comparing the electric potentials of hemispherical and cylindrical energy analyzers. Vacuum Technology and Coating, 2020, 21(10), 34−37.

Webb, D.; Song, Y.; Rosza, J.; Gustafson, E.L.; Austin, D.E.; Hawkins, A.R.; Chiang, S.H. Low-noise, Low-power Pulse Shaper for Particle Detection, Proc. IEEE 63rd International Midwest Symposium on Circuits and Systems (MWSCAS), 2020, pp. 301–304. doi: 10.1109/MWSCAS48704.2020.9184626.

Rosza, J.; Song, Y.; Webb, D.; Debaene, N.; Kerr, A.; Gustafson, E.L.; Caldwell, T.; Murray, H.V.; Austin, D.E.; Chiang, S.H.; Hawkins, A.R. A Verified Simulation Method for Image Charge Detection with Non-cylindrical Electrodes. IEEE Transactions, 2020, 91, 053302.

Rosza, J.; Song, Y.; Webb, D.; Debaene, N.; Kerr, A.; Gustafson, E.L.; Caldwell, T.; Murray, H.V.; Austin, D.E.; Chiang, S.W.; Hawkins, A.R. Simulation and measurement of image charge detection with printed-circuit-board detector and differential amplifier. Review of Scientific Instruments, 2020, 91, 053302.

Song, Y.; Rosza, J.; Magalhaes, J.; Smith, S.; Karlinskey, B.; Kinnison, W.; Gustafson, E.; Austin, D.E.; Hawkins, A.R.; Chiang, S.H. Design of Common-Mode Feedback for High-

Gain Charge Amplifier. IEEE Proc. Intermountain Engineering, Technology and Computing, 2020, 20154011. doi: 10.1109/IETC47856.2020.9249065.

Turner, B.M.; Anupriya; Osburn-Staker, S.; De la Cruz, A.; Crowther, P.; Sweet, L.R.; Sevy, E.T.; Austin, D.E. A microchannel thermalization inlet design to reduce molecular fragmentation in orbital and flyby closed-source mass spectrometers. Planetary and Space Science, 2019, 172, 1−7.

Zheng, Y.; Decker, T.K.; Wang, X.; Lammert, S.A.; Hawkins, A.R.; Austin, D.E. Extended mass range detection with a microscale planar linear ion trap mass spectrometer. International Journal of Mass Spectrometry, 2019, 440, 1−3.

Decker, T.K.; Zheng, Y.; Ruben, A.J.; Wang, X.; Lammert, S.A.; Austin, D.E.; Hawkins, A.R. A microscale planar linear ion trap mass spectrometer. Journal of the American Society for Mass Spectrometry, 2019, 30, 482−488.

Decker, T.K.; Zheng, Y.; McClellan, J.S.; Ruben, A.J.; Lammert, S.A.; Austin, D.E.; Hawkins, A.R. Double resonance ejection using novel RF phase tracking circuitry in a miniaturized planar linear ion trap mass spectrometer. Rapid Communications in Mass Spectrometry, 2018, 32, 2024−2030.

Tian, Y.; Decker, T.K.; McClellan, J.S.; Bennett, L.; Li, A.; De la Cruz, A.; Andrews, D.; Lammert, S.A.; Hawkins, A.R.; Austin, D.E. Improved miniaturized linear ion trap mass spectrometer using lithographically patterned plates and tapered ejection slit. Journal of the American Society for Mass Spectrometry, 2018, 29, 213−222.

Tian, Y.; Decker, T.K.; McClellan, J.S.; Wu, Q.H.; De la Cruz, A.; Hawkins, A.R.; Austin, D.E. Experimental observation of the effects of translational and rotational electrode misalignment on a planar linear ion trap mass spectrometer. Journal of the American Society for Mass Spectrometry, 2018, 29, 1376−1385.

Decker, T.K.; Tian, Y.; McClellan, J.S.; Bennett, L.; Lammert, S.A.; Austin, D.E.; Hawkins, A.R. Optimal fabrication methods for miniature coplanar ion traps. Rapid Communications in Mass Spectrometry, 2018, 32, 289−294.

Wang, X.T.; Zheng, Y.; Shi, J.; Gong, X.Y.; Yue, J.; Han, W.W.; Jiang, Y.; Austin, D.E.; Fang, X.; Zhang, Z.P. Elucidating the reaction mechanisms between triazine and hydrogen sulfide with pH variation using mass spectrometry. Analytical Chemistry, 2018, 90, 11138−11145.

Higgs, J.; Warnick, K.F.; Austin, D.E. Field optimization of toroidal ion trap mass analyzers using toroidal multipoles. International Journal of Mass Spectrometry, 2018, 425, 10−15.

Barney, B. and Austin, D.E. Kinetic energy loss of bouncing Bacillus subtilis spores determined using image-charge detection. Journal of Biological Physics, 2017, 43, 481−492.

Li, A.; Higgs, J.; Austin, D.E. Chaotic motion of single ions in a toroidal ion trap mass analyzer. International Journal of Mass Spectrometry, 2017, 421, 95−103.

Wang, T.; Zheng, Y.; Wang, X.; Austin, D.E.; Zhang, Z.P. Sub-ppt mass spectrometric detection of therapeutic drugs in complex biological matrices using polystyrene-microsphere-coated paper spray. Analytical Chemistry, 2017, 89, 7988−7995.

Wang, T.; Zheng, Y.; Wang, X.; Wang, Q.; Ke, C.-Y.; Austin, D.E.; Han, X.; Zhang, Z.P. Abnormal adsorption and desorption behaviors of pharmaceutical drugs on polystyrene microspheres. Advances of the Royal Society of Chemistry (RSC Advances), 2017, 7, 19639−19644.

Wu, Q.H.; Li, A.; Tian, Y.; Decker, T.; Hawkins, A.R.; Austin, D.E. A miniaturized linear wire ion trap with electron ionization and single photon ionization sources. Journal of the American Society for Mass Spectrometry, 2017, 28, 859−865.

Wu, Q.H.; Li, A.; Tian, Y.; Zare, R.N.; Austin, D.E. Miniaturized linear wire ion trap mass analyzer. Analytical Chemistry, 2016, 88, 7800−7806.

Barney, B.; Pratt, S.N.; Austin, D.E. Survivability of bare, individual Bacillus subtilis spores to high-velocity surface impact: implications for microbial transfer through space. Planetary and Space Science, 2016, 125, 20−26.

Higgs, J.M.; Petersen, B.V.; Lammert, S.A.; Warnick, K.F.; Austin, D.E. Radiofrequency trapping of ions in a pure toroidal potential distribution. International Journal of Mass Spectrometry, 2016, 395, 20−26.

Wu, Q.; Tian, Y.; Li, A.; Austin, D.E. Simulations of electrode misalignment effects in two-plate linear ion traps. International Journal of Mass Spectrometry, 2015, 393, 52−57.

Chadderdon, S.; Shumway, L.; Powell, A.; Li, A.; Austin, D.E.; Hawkins, A.R.; Selfridge, R.H.; Schultz, S.M. Ion trap electric field measurements using slab coupled optical fiber sensors. Journal of the American Society for Mass Spectrometry, 2014, 25, 1622−1627.

Higgs, J.M. and Austin, D.E. Ion motion in toroidal radiofrequency ion traps. International Journal of Mass Spectrometry, 2014, 363, 40−51.

Tian, Y.; Li, A.; Higgs, J.M.; Barney, B.L.; Austin, D.E. How far can ion trap miniaturization go? Parameter scaling, space charge limits, and future prospects. Journal of Mass Spectrometry, 2014, 49, 233−240.

Li, A.; Hansen, B.J.; Powell, A.; Hawkins, A.R.; Austin, D.E. Miniaturization of a planar-electrode linear ion trap mass spectrometer. Rapid Communications in Mass Spectrometry, 2014, 28, 1338−1344.

Pratt, S. and Austin, D.E. Bacterial spores survive electrospray charging and desolvation. Journal of the American Society for Mass Spectrometry, 2014, 25, 712−721.

Barney, B.; Daly, R.T.; Austin, D.E. A Multi-stage image charge detector made from printed circuit boards. Review of Scientific Instruments, 2013, 84, 114101.

Hansen, B.J.; Niemi, R.J.; Hawkins, A.R.; Lammert, S.A.; Austin, D.E. A lithographically patterned discrete planar electrode linear ion trap mass spectrometer. Journal of Microelectromechanical Systems, 2013, 22, 876−883.

Daly, R.T.; Kerby, J.; Austin, D.E. Electrospray charging of minerals and ices for hypervelocity impact research. Planetary and Space Science, 2013, 75, 182−187.

Kerby, J.; Daly, R.T.; Austin, D.E. Electrical charging of chondritic meteorite particles, other minerals, and ices for hypervelocity impact research. Earth, Planets, Space (EPS), 2013, 65, 157−165.

Taylor, N. and Austin, D.E. A simplified toroidal ion trap mass spectrometer. International Journal of Mass Spectrometry, 2012, 321/322, 25−32.

Austin, D.E.; Shen, A.H.T.; Beauchamp, J.L.; Ahrens, T.J. Time-of-flight mass spectrometry of mineral volatilization: toward composition analysis of shocked mineral vapor. Review of Scientific Instruments, 2012, 83, 044502, 1−6.

Selck, D.A.; Woodfield, B.F.; Boerio-Goates J.; Austin, D.E. Simple, low-cost mass spectrometric analyzer for thermogravimetry. Rapid Communications in Mass Spectrometry, 2012, 26, 78−82.

Peng, Y. and Austin, D.E. New approaches for miniaturizing ion trap mass analyzers. Trends in Analytical Chemistry, 2011, 30, 1560−1567.

Peng, Y.; Hansen, B.J.; Quist, H.; Zhang, Z.P.; Hawkins, A.R.; Austin, D.E. Coaxial ion trap: concentric toroidal and quadrupole trapping regions in one mass analyzer. Analytical Chemistry, 2011, 83, 5578−5584.

Wang, M.; Quist, H. E.; Hansen, B.J.; Peng, Y.; Zhang, Z.P.; Hawkins, A.R.; Rockwood, A.L.; Austin, D.E.; Lee, M.L. Performance of a halo ion trap mass analyzer with exit slits for axial ejection. Journal of the American Society for Mass Spectrometry, 2011, 22, 369−378.

Zhang, Z.P.; Quist, H.; Peng, Y.; Hansen, B.J; Wang, J.; Hawkins, A.R.; Austin, D.E. Effects of higher-order multipoles on the performance of a two-plate quadrupole ion trap mass analyzer. International Journal of Mass Spectrometry, 2011, 299, 151−157.

Austin, D.E. and Lammert, S.A. “Mass Analyzer Miniaturization,” in the Encyclopedia of Mass Spectrometry, vol 7. Elsevier: Amsterdam.

Austin, D.E.; Hansen, B.J.; Peng, Y.; Zhang, Z.P. Multipole expansion in quadrupolar devices comprised of planar electrode arrays. International Journal of Mass Spectrometry, 2010, 295, 153−158.

Clark, J.; Call, S.T.; Austin, D.E.; Hansen, J.C. Computational study of hydroxy isoprene peroxy radical-water complexes. Journal of Physical Chemistry A, 2010, 114, 6534−6541.

Austin, D.E. Mass spectrometry on a chip – or between two. G.I.T. Laboratory Journal Europe, 2010, 5−6, 20−22.

Austin, D.E. and Lammert, S.A. “Ion Traps with Circular Geometries,” Chapter 7 in Volume 4 of Practical Aspects of Trapped Ion Mass Spectrometry, Todd, J.F.J. and March, R., Eds. CRC Press, 2010.

Austin, D.E. Miniaturization of Analytical Systems: Principles, Designs and Applications—Book Review. Journal of the American Chemical Society, 2010, 132, 6864.

Zhang, Z.P; Peng, Y.; Hansen, B.J.; Miller, I.W.; Wang, M.; Lee, M.L.; Hawkins, A.R.; Austin, D.E. Paul trap mass analyzer consisting of opposing microfabricated electrode plates. Analytical Chemistry, 2009, 81, 5241−5248.

Austin, D.E.; Peng, Y.; Hansen, B.J.; Miller, I.W.; Rockwood, A.; Hawkins, A.R.; Tolley, S.E. Novel ion traps using planar resistive electrodes: implications for miniaturized mass analyzers. Journal of the American Society for Mass Spectrometry, 2008, 19, 1435−1441.

Austin, D.E.; Wang, M.; Tolley, S.E.; Maas, J.D.; Hawkins, A.R.; Rockwood, A.L.; Tolley, H.D.; Lee, E.D.; Lee, M.L. Halo ion trap mass spectrometer. Analytical Chemistry, 2007, 79, 2927−2932.

Cruz, D.; Chang, J.P.; Fico, M.; Guymon, A.J.; Austin, D.E.; Blain, M.G. Design, microfabrication, and analysis of micrometer-sized cylindrical ion traps. Review of Scientific Instruments, 2007, 78, 015107.

Austin, D.E.; Cruz, D.; Blain, M.G. Simulations of ion trapping behavior in micrometer-sized cylindrical ion traps. Journal of the American Society for Mass Spectrometry, 2006, 17, 430−441.

Austin, D.E. and Hunka, D.E. An ion mobility spectrometer mass spectrometer (IMS-MS) for improved detection of contraband. SAND report #2005-6360, 2005, Sandia National Laboratories, Albuquerque, NM.

Austin, D.E.; Manning, H.L.K.; Bailey, C.L.; Beauchamp, J.L. A compact time-of-flight mass spectrometer for high-flux cosmic dust analysis. Journal of Geophysical Research – Planets, 2004, 109, E07S07. doi:10.1029/2003JE002184.

Blain, M.G.; Riter, L.S.; Cruz, D.; Austin, D.E.; Wu, G.; Plass, W.R.; Cooks, R.G. Towards the hand-held mass spectrometer: design considerations, simulation, and fabrication of micrometer-scaled cylindrical ion traps. International Journal of Mass Spectrometry, 2004, 236, 91−104.

Austin, D.E.; Grimm, R.L.; Manning, H.L.K.; Bailey, C.L.; Farnsworth, J.E.; Ahrens, T.J.; Beauchamp, J.L. Hypervelocity microparticle impact studies using a novel cosmic dust mass spectrometer. Journal of Geophysical Research – Planets 2003, 108(E5), 503. doi:10.1029/2002JE001947.

Austin, D.E.; Ahrens, T.J.; Beauchamp, J.L. Dustbuster: a compact impact-ionization time-of flight mass spectrometer for in situ analysis of cosmic dust. Review of Scientific Instruments, 2002, 73, 185−189.

Recent Invited Talks at National and International Professional Meetings

Austin, D.E.; Turner, B.; Sevy, E.T.; Asplund, M.C.; Hansen, L. “Hypervelocity Impact Dissociation in Planetary Mass Spectrometry,” presented at the 2022 SciX Conference, October 2022, Covington, KY. (invited talk)

Austin, D.E. “Microscale Linear Ion Trap for Portable Mass Spectrometry,” presented at the Society for Laboratory Automation Conference, January 2020, San Diego, CA. (invited talk) Austin, D.E. “Lithographically Patterned Electrodes for Miniaturized Ion Trap Mass

Spectrometers and Other Ion Optics Devices,” presented at the International Mass Spectrometry Conference, August 2018, Florence, Italy. (invited plenary lecture)

Austin, D.E. “Electrode Misalignment on a Planar Linear Ion Trap Mass Spectrometer, and Implications for Portable GC-MS,” presented at the International Conference on Separation Science and Technology, April 2018, Dubai, U.A.E. (invited talk)

Austin, D.E.; Wu, Q.; Zare, R.N.; Li, A.; Tian, Y.; Hawkins, A.R.; Andrews, D.; Decker, T.; McClellan, J. “Miniaturized Wire Ion Trap,” presented at the Pittsburgh Conference on Analytical Chemistry, March 2017, Chicago, IL. (invited talk)

Austin, D.E. “Sub-millimeter linear ion traps to address space-charge limits in portable mass spectrometry,” presented at the International Chemical Congress of the Pacific Basin Societies (Pacifichem), December 2015, Honolulu, HI. (invited talk)

Austin, D.E. “Progress in Portable Mass Spectrometry,” presented at the Pittsburgh Conference on Analytical Chemistry, March 2015, New Orleans, LA. (invited talk)

Li, A.; Hansen, B.J.; Tian, Y.; Powell, A.T.; Hawkins, A.R.; Austin, D.E. “Sub-mm linear ion trap mass spectrometer made using ceramic plates,” presented at the 248th American Chemical Society National Meeting, August 2014, San Francisco, CA. (invited talk)

Austin, D.E. “Ion Trap Mass Analyzers: The Next Steps,” presented at the Ion Trap Interest Group workshop of the 62 nd Conference of the American Society for Mass Spectrometry, June 2014, Baltimore, MD. (invited talk)

Austin, D.E. “Converging ion traps for miniaturized mass spectrometers,” presented at the Pittsburgh Conference on Analytical Chemistry (Pittcon), March 2013, Philadelphia, PA. (invited talk)

Austin, D.E. Peng, Y.; Zhang, Z.; Hansen, B.J.; Hawkins, A.R. “Ion Trap Mass Analyzers Consisting of Lithographically Patterned Plates,” presented at the meeting of the Federation of Analytical Chemistry and Spectroscopy Societies, October 2011, Reno, NV. (invited talk)

Austin, D.E. “Mass Spectrometry on a Chip—or Between Two,” presented at the 3rd Annual Meeting of the Center for Analytical Instrument Development, Purdue University, June 2010. (invited talk)

Austin, D.E. Presentation at the U.S. Department of Energy (DOE) Separations and Analysis Contractors’ Meeting, April 2010, Baltimore, MD. (invited talk)

Hansen, B.J.; Quist, H.E.; Hawkins, A.R.; Zhang, Z.; Peng, Y.; Wang, M.; Lee, M.L.; Austin, D.E. “Quadruple Ion Traps Realized by Planar Microfabricated Electrodes for Compensation of High Order Multipole Effects,” presented at the Pittsburgh Conference on Analytical Chemistry, February/March 2010, Orlando, FL. (invited talk)

Austin, D.E. “Microfabricated Planar Electrode Ion Traps: Combining Accuracy with Simplicity for Miniaturization,” presented at the Pittsburgh Conference on Analytical Chemistry, February/March 2010, Orlando, FL. (invited talk)

Austin, D.E.; Peng, Y.; Wang, M.; Hansen, B.; Lee, M.L.; Lee, E.D.; Hawkins, A.R.; Tolley, S. “New Types of Ion Traps Using Planar Non-Equipotential Electrodes,” presented at the Pittsburgh Conference on Analytical Chemistry, February 2008, New Orleans, LA. (invited talk)

Patents

Tolley, S.E.; Austin, D.E.; Hawkins, A.R.; Lee, E.D. “Coaxial Hybrid Radio Frequency Ion Trap Mass Analyzer,” U.S. Patent #7,723,679, filed 25 February 2008, issued 25 May 2010.

Austin, D.E.; Taylor, N. Toroidal Ion Trap Mass Analyzer with Cylindrical Electrodes, U.S. Patent #8,642,955, filed 20 August 2012, issued 4 February 2014.

Song, Y.; Chiang, S.H.; Hawkins, A.R.; Austin, D.E. “Solid-state Charge Detector,” U.S. Patent #11443930, filed 1 June 2020, issued 13 September 2022.