Selected Publications

bulletLennart Volz et al., Stopping Power accuracy and achievable spatial resolution of helium ion imaging using a prototype particle CT detector system, Current Directions in Biomedical Engineering 3-2 (2017)
bulletR.P. Johnson et al., Results from a Prototype Proton-CT Head Scanner, ScienceDirect: Physics Procedia 90 (2017) 209-214.
bullet T.E. Plautz et al., An Evaluation of Spatial Resolution of a Prototype Proton CT Scanner, Med. Phys. 43, 6291
bulletH.F.-W Sadrozinski, et al., Operation of the preclinical head scanner for proton CT, Nucl. Instr. Meth. A (2016),
bulletR.P. Johnson, et al., A Fast Experimental Scanner for Proton CT: Technical Performance and First Experience with Phantom Scans, IEEE Trans. Nucl. Sci. 63-1 (2015).
bulletV.A. Bashkirov, R.P. Johnson, H F.-W. Sadrozinski, R.W. Schulte, Development of Proton Computed Tomography for Applications in Hadron Therapy, NIM Advances in Detectors and Applications for Medicine vol. 809, p. 120, Feb. 2016.
bulletV.A. Bashkirov, R.P. Johnson, et al., Novel Scintillation Detector Design and Performance for Proton Radiography and Computed Tomography, Med. Phys. 43, 664 (2016).
bulletM. Ackermann et al., Updated Search for Spectral Lines from Galactic Dark Matter Interactions with Pass-8 Data from the Fermi Large Area Telescope,
bulletR. P. Johnson et al., Results from a Pre-Clinical Head Scanner for Proton CT, contribution M11-63 to the IEEE November 2014 Medical Imaging Conference.
bulletT. Plautz et al., 200 MeV Proton Radiography Studies with a Hand Phantom Using a Prototype Proton CT Scanner, IEEE Trans. Med. Imaging 33, 875-881, 2014.
bulletR. Johnson, Joel DeWitt, Cole Holcomb, Scott Macafee, Hartmut F.-W. Sadrozinski, David Steinberg, Tracker Readout ASIC for Proton Computed Tomography Data Acquisition, IEEE Trans. Nucl. Sci. 60, 3262-3269, 2013.
bulletH.F.-W. Sadrozinski, R.P. Johnson et al, Development of a Head Scanner for Proton CT, Nucl. Instr. Meth. A,
bulletM. Ackermann et al. Search for Dark Matter Satellites using Fermi-LAT, ApJ 747 (2012) 121.
bulletM. Dormody, R.P. Johnson et al., Sensitivity of Blind Pulsar Searches with the Fermi-LAT, ApJ 742 (2011) 126, doi:10.1088/0004-637X/742/2/126.
bulletM. Ackermann et al., Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope, Phys. Rev. Lett. 107 (2011) 241302.
bulletT.A. Porter, R.P. Johnson, P.W. Graham, Dark Matter Searches with Astroparticle Data, arXiv:1104.2836v1, Annual Reviews of Astronomy and Astrophysics 49 (2011) 156.
bulletAA. Abdo et al., The First Fermi Large Area Telescope Catalog of Gamma-ray Pulsars
ApJS, 187 (2010) 460, doi: 10.1088/0067-0049/187/2/460.
bulletP.M. Saz Parkinson, M. Dormody, M. Ziegler et al., Eight Gamma-Ray Pulsars Discovered in Blind Frequency Searches of Fermi-LAT Data, Ap.J. 725 (2010) 571, arXiv:1006.2134v1.
bulletBrandon Anderson, Michael Kuhlen, Robert Johnson, Piero Madau, Juerg Diemand, Fermi-LAT Sensitivity to Dark Matter Annihilation in Via Lactea II Substructure, Ap.J. 718 (2010) 899, arXiv:1006.1628v1.
bulletA.A. Abdo et al., Fermi LAT Search for Photon Lines from 30 to 200 GeV and Dark Matter Implications, Phys. Rev. Lett. 104 (2010) 091302, ArXiv:1001.4836.
bulletA.A. Abdo et al., Fermi Large Area Telescope First Source Catalog, Ap.J. Supp. 188 (2010) 405.
bulletA.A. Abdo et al., Observations of Milky Way Dwarf Spheroidal galaxies with the Fermi-LAT detector and constraints on Dark Matter models, Ap.J. 712 (2010) 147.
bulletA.A. Abdo et al., Fermi Large Area Telescope Observations of PSR J1836+5925 doi:10.1088/0004-637X/712/2/1209
bulletFermi Large Area Telescope Measurements of the Diffuse Gamma-Ray Emission at Intermediate Galactic Latitudes, Phys. Rev. Lett. 103, (2009) 251101, arXiv:0912.0973v1.
bulletA.A. Abdo et al., A limit on the variation of the speed of light arising from quantum gravity effects, Nature 462 (2009) 331, doi:10.1038/nature08574, arXiv:0908.1832v1.
bulletA.A. Abdo et al., A Population of Gamma-Ray Millisecond Pulsars Seen with the Fermi Large Area Telescope, Science 325 (2009) 848; 10.1126/science.1176113.
bulletA.A. Abdo et al., Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT, Science 325 (2009) 840; 10.1126/science.1175558.
bulletA.A. Abdo et al., Measurement of the Cosmic-Ray e+ plus e- Spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope, Phys. Rev. Lett. 102 (2009) 118101, arXiv:0905.0025v1.
bulletR.P. Johnson and R. Mukherjee, GeV Telescopes: Results and Prospects for Fermi, New Journal of Physics 11 (May 2009), 10.1088/1367-2630/11/5/055008.
bulletA.A. Abdo et al., The On-Orbit Calibration of the Fermi Large Area Telescope, Astropart. Phys. 32 (2009) 193. arXiv:0904.2226v1.
bulletW.B. Atwood et al., The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission, Ap.J. 697 (2009) 1071, arXiv:0902.1089v1.
bulletA.A. Abdo et al., Bright AGN Source List from the First Three Months of the Fermi Large Area Telescope All-Sky Survey, Ap.J. 700 (2009) 597; arXiv:0902.1559v1.
bulletA.A. Abdo et al., Fermi Large Area Telescope Bright Gamma-ray Source List, Ap.J. Suppl. 183 (2009) 46, arXiv:0902.1340v1.
bulletA.A. Abdo et al., Fermi Observations of High-Energy Gamma-Ray Emission from GRB 080916C, Science 323, 1688, 2009; 10.1126/science.1169101.
bulletA.A. Abdo et al., The Fermi Gamma-Ray Telescope Discovers the Pulsar in the Young Galactic Supernova Remnant CTA 1, Science 322, 1218, 2008; 10.1126/science.1165572.
bulletM. Ziegler, B.M. Baughman, R.P. Johnson, W.B. Atwood,  A Search for Radio Quiet Gamma-Ray Pulsars in EGRET Data Using a Time Differencing Technique,  Ap.J. 680, 620-626, 2008.
bulletE.A. Baltz et al., Pre-Launch Estimates for GLAST Sensitivity to Dark Matter Annihilation Signals, JCAP 10.1088/1475-7516/2008/07/013.
bulletW. Atwood et al., Design and Initial Tests of the Tracker-Converter of the Gamma-ray Large Area Space Telescope, Astroparticle Physics 28, 422-434, 2007.
bulletW.B. Atwood, M. Ziegler, R.P. Johnson, B.M. Baughman, A Time Differencing Technique for Detecting Radio-Quiet Gamma-Ray Pulsars, Ap.J. 652, L49-L52, 2006.
bulletL. Baldini et al., Fabrication of the GLAST Silicon Tracker Readout Electronics, IEEE Trans. Nucl. Sci. 53, 3013-3020, 2006.
bulletL. Baldini et al., The Silicon Tracker Readout Electronics of the Gamma-Ray Large Area Space Telescope, IEEE Trans. Nucl. Sci. 53, 466, 2006.

Full Bibliography