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Author: zachary levine
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1. Uncertainty in RECIST as a measure of volume for lung nodules and liver malignoma
Published: 4/27/2012
Authors: Zachary H Levine, Adam L Pintar, John G Hagedorn, Charles D. Fenimore, Claus P. Heussel
Abstract: The authors investigate the extent to which the RESPONSE Evaluation Criateria in Solid Tumors (RECIST) can predict tumor volumes and changes in volume using clinical data. The data presented are a reanalysis of data acquired in other studies, includ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909862

2. Tumor volume measurement errors RECIST studied with realistic tumor models
Series: Journal of Research (NIST JRES)
Published: 5/16/2011
Authors: Benjamin R. Galloway, Adele P Peskin, Zachary H Levine
Abstract: RECIST (Response Evaluation Criteria in Solid Tumors) is a linear measure intended to predict tumor volume in medical computed tomography (CT). In this work, using purely geometrical considerations, we estimate how well RECIST can predict the volume ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907952

3. Frequency-bin Entangled Comb of Photon Pairs From a Silicon-on-Insulator Micro-Resonator
Published: 1/13/2011
Authors: Jun Chen, Zachary H Levine, Jingyun Fan, Alan L Migdall
Abstract: We present a quantum-mechanical theory to describe narrow-band photon- pair generation via four-wave mixing in a Silicon-on-Insulator (SOI) micro- resonator. We also provide design principles for efficient photon-pair generation in an SOI mic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906297

4. Heralded, pure-state single-photon source based on a Potassium Titanyl Phosphate waveguide
Published: 2/15/2010
Authors: Zachary H Levine, Jingyun Fan, Jun Chen, Alexander E. Ling, Alan L Migdall
Abstract: WWe analyze the generation of single spatial mode, spectrally uncorrelated photon pairs via type II spontaneous parametric downconversion in a Potassium Titanyl Phosphate (KTP) waveguide using real experimental parameters. We show that this source ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904223

5. Design considerations for a cascaded grating interferometer suitable for EUV interference lithography
Published: 4/10/2009
Authors: Zachary H Levine, Thomas B Lucatorto, Steven Grantham
Abstract: The potential of a cascaded grating interferometer to perform Extreme Ultraviolet Interference Lithography (EUV-IL) depends on its beng coupled to a source that is bright enought to allow exposures ina reasonable time.   This work presents a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842467

6. A Low-Cost Density Reference Phantom for Computed Tomography
Published: 1/2/2009
Authors: Zachary H Levine, Ming-Dong Li, Anthony P Reeves, David F Yankelevitz, Joseph J Chen, Eliot L Siegel, Adele P Peskin, Diana N. Zeiger
Abstract: We have characterized a commercially-available polyurethane foam which is marketed for modeling parts in the aircraft, automotive, and related industries. We find that the foam may be suitable for use as a density reference standard in the range bel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842519

7. A Low Cost Fiducial Reference for Computed Tomography
Published: 11/11/2008
Authors: Zachary H Levine, Steven Grantham, Daniel S Sawyer, Anthony P Reeves, David F Yankelevitz
Abstract: Rationale and Objectives. To detect the growth in lesions, it is necessary to ensure that the apparent changes in size are above the noise floor of the system. By introducing a fiducial reference, it may be possible to detect smaller changes in le ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842437

8. Diffraction and Electron Energy Loss to Plasmons in Silicon Slabs
Published: 3/10/2008
Author: Zachary H Levine
Abstract: Dynamic diffraction patterns have been calculated for 25-nm thick slabs of silicon with [001], [111], and [110] faces for a 120 keV electron beam. The calculation used the mixed dynamical form factor in the dielectric formulation. Dielectric matric ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840261

9. The Magic Angle Mystery in Electron Energy Loss Spectra: Relativistic and Dielectric Corrections
Published: 1/2/2008
Authors: A P Sorini, J J Rehr, Zachary H Levine
Abstract: Recently it has been demonstrated that a careful treatment of both longitudinal and transverse matrix elements in electron energy loss spectra can explain the mystery of relativistic effects on the magic angle. Here we show that there is an addition ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840276

10. Controlling the Band Gap in Zigzag Graphene Nanoribbons With an Electric Field Induced by a Polar Molecule
Published: 1/1/2008
Authors: Sergio Dalosto, Zachary H Levine
Abstract: Graphene nanoribbons with both armchair- and zigzag-shaped hydrogen-passivated edges (AGNR and ZGNR) have band gaps. Son et al. showed that the gap s value depends on the width of the ribbon and that the application of a uniform external electric fi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840264