Assistant Professor, Physics Department
Phone: 814-871-7740
Office: Z 220
conklin003@gannon.edu

  • Biography
  • Courses Taught
  • Educational History
  • Publications
  • Scholarship/Research

Biography

I have always been fascinated by how things work.  As a child, I loved taking my toys apart, and at one point I designed a pulley system so that I could open and close my bedroom door without getting out of bed.  I don't imagine anyone was surprised that I grew up to be a physicist.  I have completed my second year teaching at Gannon, and I'm having a lot of fun.  When I'm not teaching physics or doing research, I enjoy spending time with my wife, Janine, and our pets, especially our black lab, Keelie.

Courses Taught

  • General Physics 1 (Phys 105)
  • General Physics 2 (Phys 108)
  • General Physics 1 Lab (Phys 106)
  • General Physics 2 Lab (Phys 109)

Educational History

  • Ph.D., Pennsylvania State University, 2009
  • B.S., Grove City College, 2001

Publications

Peer-reviewed journal articles:
  • Y. S. Yoon et al. (2011), “Cosmic-Ray Proton and Helium Spectra From the First CREAM Flight,” The Astrophysical Journal, 728, pp. 122-130
  • H. S. Ahn et al. (2010), "Measurements of the Relative Abundances of High-Energy Cosmic-Ray
  • Nuclei in the TeV/Nucleon Region," The Astrophysical Journal, 715, pp. 1400-1407
  • H. S. Ahn et al. (2010), "Discrepant Hardening Observed in Cosmic-Ray Elemental Spectra," The Astrophysical Journal Letters, 714, pp. L89-L93
  • H. S. Ahn et al. (2009), "Energy Spectra of Cosmic-Ray Nuclei at High Energies," The Astrophysical Journal, 707, pp. 593-603
  • E. S. Seo et al. (2009), “Approaching the Spectral Knee in High Energy Cosmic Rays with CREAM,” Journal of the Physical Society of Japan A, 78, pp. 63-67
  • H. S. Ahn et al. (2009), "The Cosmic Ray Energetics And Mass (CREAM) Timing Charge Detector," Nuclear Instruments and Methods A, 602, pp. 525-536
  • H. S. Ahn et al. (2008), "Measurements of Cosmic-ray Secondary Nuclei at High Energies with the First Flight of the CREAM Balloon-borne Experiment," Astroparticle Physics, 30, pp. 133-141
  • E. S. Seo et al. (2008), "CREAM: 70 Days of Flight from 2 Launches in Antarctica," Advances in Space Research, 42, pp. 1656-1663
  • S. Wakely et al. (2008), "First Measurements of Cosmic-ray Nuclei at High Energy with
  • CREAM," Advances in Space Research, 42, pp. 403–408
  • P.S. Marrocchesi et al. (2008),"Preliminary Results from the Second Flight of CREAM,"
  • Advances in Space Research, 41, pp. 2002-2009
  • N. H. Park et al. (2007), "Beam Test of a Dual Layer Silicon Charge Detector (SCD) for the CREAM Experiment," Nuclear Instruments and Methods A, 581, pp. 133-135
  • H. S. Ahn et al. (2007), "The Cosmic Ray Energetics And Mass (CREAM) Instrument," Nuclear Instruments and Methods A, 579, pp. 1034-1053
  • M. Mangin-Brinet et al. (2007), "CHERCAM: A Cherenkov Imager for the CREAM Experiment," Nuclear Instruments and Methods A, 572(1), pp. 410-412
  • S. Coutu et al. (2007), "Design and Performance in the First Flight of the Transition Radiation Detector and Charge Detector of the CREAM Balloon Instrument," Nuclear Instruments and Methods A, 572, pp. 485-487
  • I.H. Park et al. (2007), "Silicon Charge Detector for the CREAM Experiment," Nuclear Instruments and Methods A, 570, pp. 286-291
  • N. H. Park et al. (2006), "The First Flight of the CREAM Silicon Charge Detector," Journal of the Korean Physical Society, 49, pp. 815-818
  • O. Ganel et al. (2006), "CREAM - Pushing the High Energy Frontier of Directly Measured Cosmic Rays," Czechoslovak Journal of Physics, 56, pp. A301-A312
  • I.H. Park et al. (2004), "Heavy Ion Beam Test Results of the Silicon Charge Detector for the CREAM Cosmic Ray Balloon Mission," Nuclear Instruments and Methods A, 535, pp. 158-161
  • P.S. Marrocchesi et al. (2004), "Construction and Test of a Tungsten/Sci-Fi Imaging Calorimeter for the CREAM Experiment," Nuclear Instruments and Methods A, 535, pp. 143
  • E. S. Seo et al. (2004), "Cosmic-ray energetics and mass (CREAM) balloon project," Advances in Space Research, 33, pp. 1777-1785

Scholarship/Research

My area of expertise is high-energy particle astrophysics, particularly cosmic rays.  Primary cosmic rays are largely composed of bare atomic nuclei (although there are a few electrons and photons in the mix) traveling near the speed of light.  When these particles encounter Earth’s atmosphere, they interact, causing cascades of secondary particles.  I am working with the Cosmic Ray Energetics and Mass (CREAM) experiment, which aims to study primary cosmic rays before they interact in the atmosphere by flying a detectors on large helium balloons.  Additionally, I am  working with a faculty member in the ECE department and several undergrad students on a much smaller balloon payload, also aimed at studying cosmic rays.