A. Apyan
Northwestern University
10 Papers
31 Citations
A. Apyan is an academic researcher from Northwestern University. The author has contributed to research in topics: Photon & Bremsstrahlung. The author has an hindex of 5, co-authored 10 publications.
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Papers
Improved Crystal Method for Photon Beam Linear Polarization Measurement at High Energies
TL;DR: In this article, a method for photon linear polarization determination based on the measurement of the asymmetry of pairs produced by polarized photons in single crystals within the optimal intervals of pair particles energies is proposed.
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Proposal to study the use of a crystal as a "quarter-wave plate" to produce high energy circularly polarized photons
A. Apyan,P. Sona,P Kasper,S Trentalange,K Piotrzkowski,Yu Konotets,Cristina Biino,J. Saborido,V. M. Strakhovenko,K.A. Ispirian,S. Luitz,J P Friedel Sellschop,P. Cenci,S. Ballestrero,Tjeerd Ketel,A. Gianoli,Simon Henry Connell,Zabulon Vilakazi,A Perego,Benedetto Gorini,R.O. Avakian,A. Lopez,U. Mikkelsen,E. Menichetti +23 more
- 13 Jul 1998
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Na59 Experiment at CERN
G. Unel,A. Apyan,R.O. Avakian,S. Ballestrero,Cristina Biino,Cristina Biino,P. Cenci,Simon Henry Connell,S. Eichblatt,T. Fonseca,A. Freund,A. Gianoli,R. Groess,Benedetto Gorini,K.A. Ispirian,Tjeerd Ketel,A. Lopez,S. Luitz,U. Mikkelsen,E. Menichetti,A Perego,B. van Rens,J.P.F. Sellschop,P. Sona,V. Strakhovenko,E. Uggerhøj,M. Velasco,Zabulon Vilakazi,O. Wessely +28 more
TL;DR: The Na59 Experiment at CERN-SPS aims to obtain circularly polarized high energy photons (100GeV) starting from an unpolarized electron beam by using crystals for high energy photon polarimetry.
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Computer simulation of coherent interaction of charged particles and photons with crystalline solids at high energies
TL;DR: In this article, a Monte Carlo simulation code has been developed and tested for studying the passage of charged particle beams and radiation through the crystalline matter at energies from tens of MeV up to hundreds of GeV.
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•Posted Content
Coherent Pair Production by Photons in the 20-170 GeV Energy Range Incident on Crystals and Birefringence
A. Apyan,R.O. Avakian,B. Badelek,S. Ballestrero,Cristina Biino,Inanc Birol,P. Cenci,Simon Henry Connell,S. Eichblatt,T. Fonseca,Andreas K. Freund,Benedetto Gorini,R. Groess,K.A. Ispirian,Tjeerd Ketel,Yu.V. Kononets,A. Lopez,A. Mangiarotti,B. van Rens,J.P.F. Sellschop,M. Shieh,P. Sona,V. Strakhovenko,E. Uggerhøj,Ulrik I. Uggerhøj,Gokhan Unel,M. Velasco,Zabulon Vilakazi,O. Wessely +28 more
TL;DR: In this paper, the cross section for coherent pair production by linearly polarised photons in the 20-170 GeV energy range was measured for photon aligned incidence on ultra-high quality diamond and germanium crystals.
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