Theodore V. Vorburger

Publications

Estimating Error Rates for Firearm Evidence Identifications in Forensic Science

March 01, 2018

Author(s):

Jun-Feng Song, Theodore V. Vorburger, Wei Chu, James H. Yen, Johannes A. Soons, D Ott, Nien F. Zhang

Estimating error rates for firearm evidence identification is a fundamental challenge in forensic science. This paper describes the recently developed...

Evaluation of Carbon Nanotube Probes in Critical Dimension Atomic Force Microscopes

August 26, 2016

Author(s):

Jinho Choi, Byong Chon Park, Sang Jung Ahn, Dal-Hyun Kim, J Lyou, Ronald G. Dixson, Ndubuisi G. Orji, Joseph Fu, Theodore V. Vorburger

The decreasing size of semiconductor features and the increasing structural complexity of advanced devices has placed continuously greater demands on...

Topography measurements and applications in ballistics and tool mark identifications

December 17, 2015

Author(s):

Theodore V. Vorburger, Jun-Feng Song, Nicholas D. Petraco

The application of surface topography measurement methods to the field of firearm and toolmark analysis is fairly new. The field has been boosted by the...

The Second National Ballistics Imaging Comparison (NBIC-2)

January 05, 2015

Author(s):

Theodore V. Vorburger, James H. Yen, Jun-Feng Song, Robert M. Thompson, Thomas B. Renegar, Xiaoyu A. Zheng, D Ott, Martin G. Ols

In response to the guidelines issued by the American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB-International) to...

NIST SURFACE ROUGHNESS AND STEP HEIGHT CALIBRATIONS, Measurement Conditions and Sources of Uncertainty

March 18, 2014

Author(s):

Theodore V. Vorburger, Thomas B. Renegar, Xiaoyu A. Zheng, Jun-Feng Song, Johannes A. Soons, Richard M. Silver

NIST methods for calibration of surface roughness parameters and step height are described. The surface roughness parameters currently being measured include...