Dr. Shapiro's Recent Publications:

Reply to "Note on Isotope Sputtering"
Nucl. Inst. and Meth. in Physics Res. B84 (1993) 194.

A Molecular Dynamics Study of Cu Dimer Sputtering Mechanisms
Nucl. Inst. and Meth. in Physics Res. B84 (1994) 453.

Molecular Dynamics Simulation of Cluster-Ion Fragmentation
Invited paper, Conference on Polyatomic Ion Impact on Solids and Related Phenomena, Saint-Malo, France, June, 1993.
Nucl. Inst. and Meth. in Physics Res. B88 (1994) 74.

Animated Molecular Dynamics Simulations of Energetic Mixed Cluster Impacts
Invited paper and videotape presentation, Conference on Polyatomic Ion Impact on Solids and Related Phenomena, Saint-Malo, France, June, 1993.
Nucl. Inst. and Meth. in Physics Res. B88 (1994) 81.
(with CSUF physics major Alex Tosheff)

Molecular Dynamics Simulations of Inelastic Energy Loss Effects in Sputtering
Paper presented at the 15th International Conference on Atomic Collisions in Solids, University of Western Ontario, London, Ontario, Canada, July, 1993.
Nucl. Inst. and Meth. in Physics Res. B90 (1994) 473.

Molecular Dynamics Simulations of Inelastic Energy Loss Effects in Sputtering II
Nucl. Inst. and Meth. in Physics Res. B94 (1994) 186.

Academic Year Assigned Time for Research: Should CUR Lobby for Federal Funding?
Council on Undergraduate Research Quarterly, 14 (1994) 155.

An Instantaneous Inelastic Energy Loss Algorithm for Use in Molecular Dynamics Simulations
Paper presented at COSIRES-94 meeting, Santa Barbara, California July, 1994
Nucl. Inst. and Meth. in Physics Res. B102 (1995) 277.

Round Robin Computer Simulation of Ion Transmission Through Crystalline Layers
Nucl. Inst. and Meth. in Physics Res. B102 (1995) 183.

Molecular Dynamics Simulations of Sputtering from Liquid Ga-In Targets
Nucl. Inst. and Meth. in Physics Res. B103 (1995) 123.
(with Cal Poly, Pomona undergraduate Kurt Bengtson)

A Molecular Dynamics Study of Collisional Excitation/Deexcitation at Ion-Bombarded Surfaces
Nucl. Inst. and Meth. in Physics Res. B108 (1996) 51.
(with Caltech undergraduate Jun Cai)

Molecular Dynamics Simulations of Inner Shell Electronic Energy Losses in Cluster Surface Collisions
Nucl. Inst. and Meth. in Physics Res. B114 (1996) 20.
(with Caltech undergraduate Samson Timoner)

Dependence of Inner-Shell Vacancy Production upon Distance in Hard Li-Al Collisions
Phys. Rev B55 (1997) 4811.
(with Caltech graduate student John W. Hartman)

The Formation of Clusters During Large Sputtering Events
Nucl. Inst. and Meth. in Physics Res. B124 (1997) 31.
(with Caltech graduate student John W. Hartman)

Using Molecular Dynamics Simulations to Investigate Sputtering Processes: An Overview
Radiation Eff. and Defects in Solids 142 (1997) 259.

The Formation of Clusters During Large Sputtering Events: (NIMB 124, p. 31, 1997) Correction and Addenda
Nucl. Inst. and Meth. in Physics Res. B132 (1997) 406.
(with Caltech graduate student John W. Hartman)

Using Molecular Dynamics Simulations to Investigate Surface Modification Process
Surface and Coatings Technology 104 (1998) 1.

Simulation of keV Clusters Incident on Gold Targets
Nucl. Inst. and Meth. in Physics Res. B143 (1998) 298.
(with Caltech undergraduate student Andrew Childs)

Simulation of Sputtering Induced by High-Energy Gold Clusters
Nucl. Inst. and Meth. in Physics. Res. B152 (1999) 221.
Online Reprint (pdf format)

Simulation of Cluster Ejection Following High-Energy Au_n -> Au(111) Bombardment
Paper presented at the 18th International Conference on Atomic Collisions in Solids - Odense, Denmark.
Online Reprint with computer animations.
Surface Science 453 (2000) 143.

Depth of Origin of Atoms Sputtered from Crystalline Targets
Paper presented at 5th International Conference on Computer Simulation or Radiation Effects in Solids - COSIRES 2000
Nuclear Instruments and Methods in Physics Research B180 (2001) 58.
Online Reprint (Adobe Acrobat File)
(with San Diego State undergraduate student Ed Trovato)

Simulation of Sputtering Following Ion Bombardment at a Target Step
Nuclear Instruments and Methods in Physics Research B194 (2002) 425.
Online Reprint (Adobe Acrobat File)

The Influence of the Ion-Atom Potential on Molecular Dynamics Simulations of Sputtering
(with Cal State Fullerton graduate student Ping Lu)
Nuclear Instruments and Methods in Physics Research B215 (2004) 326.
Online Reprint (Adobe Acrobat File)

Temporal Development of Sputtered Atom Distributions from Au(111) Targets Following Bombardment with 100 keV/atom Au₂ Ions
(with T.A. Tombrello)
Nuclear Instruments and Methods in Physics Research B217 (2004) 253.
Online Reprint (Adobe Acrobat File)