Department Publications

2010s

2019

54. Ion friction at small values of the Coulomb logarithm

    Tucker Sprenkle^†, Adam Dodson^‡, Quinton McKnight^‡, Ross Spencer, Scott Bergeson, Abdourahmane Diaw, and Michael S. Murillo

    Phys. Rev. E 99 (5), 053206 (2019).
    

2017

53. Computational model of a direct current glow discharge used as an ambient desorption/ionization source for mass spectrometry

    Wade C. Ellis^†, Ross L. Spencer, Charlotte Reininger, and Paul B. Farnsworth

    J. Anal. At. Spectrom. 32 (12), 2407-2415 (2017).
    
54. Ion sampling and transport in Inductively Coupled Plasma Mass Spectrometry

    Paul B. Farnsworth and Ross L. Spencer

    Spectroc. Acta Pt. B 134, 105-122 (2017).
    

2016

51. Resonance of Complex Cylindrically Symmetric Cavities Using an Eigenfunction Expansion in Empty Cavity Modes

    Kyle G. Miller^†, Michael Meehan^‡, Ross L. Spencer, and John S. Colton

    IEEE Trans. Magn. 64 (10), 3113-3120 (2016).
    

2014

50. A novel approach to understanding the effect of matrix composition on analyte emission in an inductively coupled plasma

    Nicholas Taylor, Kyli N. McKay-Bishop, Ross L. Spencer, and Paul B. Farnsworth

    J. Anal. At. Spectrom. 29 (4), 644-656 (2014).
    

2013

49. Properties of axisymmetric Bernstein modes in an infinite-length non-neutral plasma

    Grant W. Hart and Ross L. Spencer

    Phys. Plasmas 20 (10), 102101 (2013).
    

2012

48. The effect of matrix composition on radially resolved argon metastable atom populations in an emission ICP

    Nicholas Taylor^‡, Ross L. Spencer, and Paul B. Farnsworth

    J. Anal. At. Spectrom. 27 (5), 857-867 (2012).
    

2010

47. Proposed Measurement of the Half-Life of Ionized Beryllium-7

    Bryan G. Peterson, M. Takeshi Nakata^†, Mark A. Hutchison^†, Grant W. Hart, and Ross L. Spencer

    J. Utah Acad. Sci. 86, 181-195 (2010).
    

2000s

2009

46. A comparison of ion and atom behavior in the first stage of an inductively coupled plasma mass spectrometer vacuum interface: Evidence of the effect of an ambipolar electric field

    Paul B. Farnsworth, Ross L. Spencer, W. Neil Radicic^†, Nicholas Taylor^‡, Jeffrey Macedone, and Haibin Ma^†

    Spectroc. Acta Pt. B 64 (9), 905-910 (2009).
    
47. Comparison of calculated and experimental flow velocities upstream from the sampling cone of an inductively coupled plasma mass spectrometer

    Ross L. Spencer, Nicholas Taylor^‡, and Paul B. Farnsworth

    Spectroc. Acta Pt. B 64 (9), 921-924 (2009).
    
48. Modeling the gas flow upstream and in the sampling nozzle of the inductively coupled plasma mass spectrometer via the Direct Simulation Monte Carlo algorithm

    Ross L. Spencer, Jaron Krogel^‡, Jamie Palmer^‡, Adam Payne^‡, Andrew Sampson^‡, William Somers^†, and Charles N. Woods^‡

    Spectroc. Acta Pt. B 64 (3), 215-221 (2009).
    

2005

43. Teaching computational physics as a laboratory sequence

    R. L. Spencer

    Am. J. Phys. 73 (2), 151-153 (2005).
    

2004

42. Computing the m=1 diocotron frequency via an equilibrium calculation in non-neutral plasmas

    Ross L. Spencer

    Phys. Plasmas 11 (11), 5356-5359 (2004).
    

2003

41. Numerical Non‐neutral Plasmas

    Ross L. Spencer, Grant W. Mason, and S. Neil Rasband

    Non-Neutral Plasma Physics, (July 2003, Santa Fe, NM). AIP Conf. Proc. 692, 229 (2003).
    
42. Non-Destructive Positron Plasma Diagnostics for Antihydrogen Production

    M. Amoretti, C. Amsler, G. Bonomi, A. Bouchta, P. D. Bowe, C. Carraro, … and R. L. Spencer (24 other authors)

    NON-NEUTRAL PLASMA PHYSICS V: Workshop on Non-Neutral Plasmas, (July 2003, Santa Fe, NM). AIP Conf. Proc. 692, 121 (2003).
    
43. Observation of and model for nonlinear mode conversion in a non-neutral plasma

    Grant W. Hart, Ross L. Spencer, and Bryan G. Peterson

    Phys. Plasmas 10 (7), 2738-2747 (2003).
    
44. Modes in a non-neutral plasma of finite length, m=0,1

    S. Neil Rasband and Ross L. Spencer

    Phys. Plasmas 10 (4), 948-955 (2003).
    
45. Neutral-plasma oscillations at zero temperature

    S. D. Bergeson and R. L. Spencer

    Phys. Rev. E 67 (2), 026414 (2003).
    

2002

36. Simulations of the instability of the m=1 self-shielding diocotron mode in finite-length non-neutral plasmas

    Grant W. Mason and Ross L. Spencer

    Phys. Plasmas 9 (8), 3217-3224 (2002).
    
37. Vibrational modes of thin oblate clouds of charge

    Thomas G. Jenkins^† and Ross L. Spencer

    Phys. Plasmas 9 (7), 2896-2908 (2002).
    
38. Simulations of the instability of the m=1 self-shielding diocotron mode in finite-length nonneutral plasmas

    Grant W. Mason and Ross L. Spencer

    Non-Neutral Plasma Physics IV: Workshop on Non-Neutral Plasmas, (July 2001, San Diego, CA). AIP Conf. Proc. 606, 287-297 (2002).
    
39. Modes in a nonneutral plasma column of finite length

    S. Neil Rasband and Ross L. Spencer

    Non-Neutral Plasma Physics IV, (July 2001, San Diego, CA).  AIP Conf. Proc. 606, 335 (2002).
    

2001

32. Mode detuning in systems of weakly coupled oscillators

    Ross L. Spencer and Richard D. Robertson

    Am. J. Phys. 69 (11), 1191-1197 (2001).
    

1990s

1999

31. Numerical investigations of solitons in a long nonneutral plasma

    S. Neil Rasband and Ross L. Spencer

    Non-Neutral Plasma Physics III, (August 1999, Princeton, NJ). AIP Conf. Proc. 498, 192 (1999).
    
32. Experimental observations of nonlinear effects in waves in a nonneutral plasma

    Grant W. Hart, Ross L. Spencer, and Bryan G. Peterson

    Proceedings of Non-neutral plasma physics III, (August 1999, Princeton, NJ). AIP Conf. Proc. 498, 182-191 (1999).
    
33. Modes and quasi-modes for m=1,2 in a gyrokinetic model for a non-neutral plasma

    S. N. Rasband and R. L. Spencer

    Phys. Plasmas 6 (5), 1435-1441 (1999).
    

1998

28. Thermal equilibrium of warm clouds of charge with small aspect ratio

    Deborah L. Paulson^† and Ross L. Spencer

    Phys. Plasmas 5 (2), 345-356 (1998).
    

1997

27. Damped diocotron quasi-modes of non-neutral plasmas and inviscid fluids

    Ross L. Spencer and S. Neil Rasband

    Phys. Plasmas 4 (1), 53-60 (1997).
    

1996

26. Simulations of electrostatic modes of non-neutral plasmas with small aspect ratio in a Penning trap

    Grant W. Mason, Ross L. Spencer, and Jonathan A. Bennett^‡

    Phys. Plasmas 3 (5), 1502-1511 (1996).
    

1995

25. Numerical-calculation of axisymmetrical electrostatic modes for cold finite-length nonneutral plasmas

    Johnny K. Jennings^†, Ross L. Spencer, and K. C. Hansen^†

    Phys. Plasmas 2 (7), 2630-2639 (1995).
    
26. A capillary discharge as a potential x-ray laser driver

    B. G. Peterson, E. P. Ivanova, R. L. Spencer, G. W. Hart, J. Lin^†, T. T. Stark, A. M. Panin, and L. V. Knight

    Soft X-Rays in the 21st Century, (February 1993, Provo, UT). J. X-ray Sci. Technol. 5 (1), 43-51 (1995).
    
27. Numerical modeling of non‐neutral plasmas

    Ross L. Spencer

    Non−neutral plasma physics II: The Berkeley workshop on non−neutral plasmas in traps (July 1994, Berkely, CA). AIP Conf. Proc. 331, 204-214 (1995).
    

1994

22. Low-order modes as diagnostics of spheroidal nonneutral plasmas

    M. D. Tinkle, R. G. Greaves, C. M. Surko, R. L. Spencer, and G. W. Mason

    Phys. Rev. Lett. 72 (3), 352-355 (1994).
    

1993

21. Numerical-calculation of axisymmetrical nonneutral plasma equilibria

    Ross L. Spencer, S. N. Rasband, and Richard R. Vanfleet

    Phys. Fluids B 5 (12), 4267-4272 (1993).
    
22. Large-amplitude l= 1 coherent structures in nonneutral plasmas confined in a cylindrical trap

    Ross L. Spencer and Grant W. Mason

    Phys. Fluids B 5 (6), 1738-1745 (1993).
    
23. Exponential-growth of an unstable i = 1 dioctron mode for a hollow electron column in a warm-fluid model

    S. N. Rasband, Ross L. Spencer, and Richard R. Vanfleet

    Phys. Fluids B 5 (3), 669-673 (1993).
    

1992

18. Linear-theory of nonneutral plasma equilibrium in a tilted magnetic-field

    R. L. Spencer and G. W. Hart

    Phys. Fluids B 4 (11), 3507-3512 (1992).
    

1990

17. The effect of externally applied oscillating electric-fields on the l=1 and l=2 diocotron modes in nonneutral plasmas

    Ross L. Spencer

    Phys. Fluids B 2 (10), 2306-2314 (1990).
    
18. If coulomb law were not inverse square - the charge-distribution inside a solid conducting sphere

    Ross L. Spencer

    Am. J. Phys. 58 (4), 385-390 (1990).
    

1980s

1988

15. Electric field lines near an oddly shaped conductor in a uniform electric field

    Ross L. Spencer

    Am. J. Phys. 56 (6), 510-512 (1988).
    

1986

14. Equilibrium properties of short field-reversed configurations

    M. Tuszewski and R. L. Spencer

    Phys. Fluids 29 (11), 3711-3714 (1986).
    
15. Review of the Los Alamos FRX-C experiment

    R. E. Siemon, W. T. Armstrong, D. C. Barnes, R. R. Bartsch, R. E. Chrien, J. C. Cochrane, … R. L. Spencer, … (12 other authors)

    Fusion Sci. Technol. 9 (1), 13-37 (1986).
    

1985

12. Field-reversed configuration research at los-alamos

    K. F. Mckenna, W. T. Armstrong, D. C. Barnes, R. R. Bartsch, R. E. Chrien, J. C. Cochrane, … R. L. Spencer, … (8 other authors)

    Nucl. Fusion 25 (9), 1317-1319 (1985).
    
13. Experimental and computational equilibria of field-reversed configurations

    R. L. Spencer and M. Tuszewski

    Phys. Fluids 28 (6), 1810-1815 (1985).
    
14. Magnetohydrodynamic equilibrium and stability of rotating field-reversed configurations with excluded multipole fields

    R. L. Spencer and M. Tuszewski

    Phys. Fluids 28 (8), 2510-2516 (1985).
    

1984

9. Spheromak formation and operation with background filling gas and a solid flux conserver in ctx

   C. W. Barnes, T. R. Jarboe, I. Henins, A. R. Sherwood, S. O. Knox, R. Gribble, … R. L. Spencer, … (6 other authors)

   Nucl. Fusion 24 (3), 267-281 (1984).
   

1983

8. Magnetohydrodynamic equilibrium and stability of field-reversed configurations

   J. L. Schwarzmeier, D. C. Barnes, D. W. Hewett, C. E. Seyler, A. I. Shestakov, and R. L. Spencer

   Phys. Fluids 26 (5), 1295-1298 (1983).
   
9. Two-dimensional equilibria of field-reversed configurations in a perfectly conducting cylindrical-shell

   D. W. Hewett and R. L. Spencer

   Phys. Fluids 26 (5), 1299-1304 (1983).
   
10. Adiabatic-compression of elongated field-reversed configurations

    R. L. Spencer, M. Tuszewski, and R. K. Linford

    Phys. Fluids 26 (6), 1564-1568 (1983).
    

1982

5. Free-boundary field-reversed configuration (frc) equilibria in a conducting cylinder

   R. L. Spencer and D. W. Hewett

   Phys. Fluids 25 (8), 1365-1369 (1982).
   

1980

4. Bifurcation of sharp boundary beta=1 multipole equilibria

   R. L. Spencer

   Phys. Fluids 23 (8), 1691-1697 (1980).
   

1970s

1979

3. Compact-electron-beam or light-ion-beam fusion reactor cavity design using non-spherical blast waves

   G. A. Moses and R. Spencer

   Nucl. Fusion 19 (10), 1386 (1979).
   
4. Stimulated thomson scattering

   R. L. Spencer, J. E. Lawler, and L. W. Anderson

   Phys. Rev. A 20 (1), 304-315 (1979).
   

1975

1. Remarks on possibility of a pulsar-induced bump in cosmic-ray spectrum at 1013-1016ev particle

   J. W. Elbert, M. O. Larson, G. H. Lowe, J. L. Morrison, G. W. Mason, and R. L. Spencer^‡

   J. Phys. A 8 (1), L13-L17 (1975).
   

^‡Undergraduate Student Author

^†Graduate Student Author