Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Varghese Anto Chirayath"'
Publikováno v:
Acta Physica Polonica A. 137:87-90
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a8c7bc40b1aece8425326599c4957cf
https://doi.org/10.12693/aphyspola.137.87
https://doi.org/10.12693/aphyspola.137.87
Autor:
A. J. Fairchild, Philip A. Sterne, E. Perez, Ali R. Koymen, Alex H. Weiss, S. Lotfimarangloo, R. W. Gladen, Varghese Anto Chirayath
Publikováno v:
Acta Physica Polonica A. 137:81-86
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::804ca3662240b6953a174e7c7123e4b1
https://doi.org/10.12693/aphyspola.137.81
https://doi.org/10.12693/aphyspola.137.81
Autor:
Philip A. Sterne, Varghese Anto Chirayath, Alex H. Weiss, A. J. Fairchild, R. W. Gladen, Ali R. Koymen, S. Lotfimarangloo, M. T. Manry, T. N. Shead
Publikováno v:
Acta Physica Polonica A. 137:101-104
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c92e44502fc256c3bc0c16a96fd2a68
https://doi.org/10.12693/aphyspola.137.101
https://doi.org/10.12693/aphyspola.137.101
Autor:
A. J. Fairchild, Alex H. Weiss, Q. Dong, Robert Bartynski, K. Shastry, Steven L. Hulbert, R. W. Gladen, Sushant Kalaskar, Wolfgang S. M. Werner, Varghese Anto Chirayath, P.V. Joglekar
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 235:16-22
We report the first measurement of the full energy spectrum (down to 0 eV) of electrons emitted from the surface of Ag(100) as a result of the N3VV Auger transition. A comparison with a Monte-Carlo model was used to obtain an estimate of the contribu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f87cc32e89a187f023c69acfeadb9247
https://doi.org/10.1016/j.elspec.2019.06.006
https://doi.org/10.1016/j.elspec.2019.06.006
Autor:
Alex H. Weiss, A. J. Fairchild, Varghese Anto Chirayath, M. T. Manry, R. W. Gladen, A. R. Koymen
We describe here an efficient machine-learning based approach for the optimization of parameters used for extracting the arrival time of waveforms, in particular those generated by the detection of 511 keV annihilation γ -rays by a 60 cm3 coaxial hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8f613cfeb3326d2940d99bbc9c51480
http://arxiv.org/abs/2004.00008
http://arxiv.org/abs/2004.00008
Direct evidence for low-energy electron emission following O LVV Auger transitions at oxide surfaces
Autor:
Alex H. Weiss, A. J. Fairchild, A. R. Koymen, Philip A. Sterne, Varghese Anto Chirayath, R. W. Gladen
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
Oxygen, the third most abundant element in the universe, plays a key role in the chemistry of condensed matter and biological systems. Here, we report evidence for a hitherto unexplored Auger transition in oxides, where a valence band electron fills
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f4574426079829a7dbcfd78ef9006fc
http://arxiv.org/abs/2003.02975
http://arxiv.org/abs/2003.02975
Autor:
Alex H. Weiss, A. R. Koymen, Philip A. Sterne, R. W. Gladen, A. J. Fairchild, Varghese Anto Chirayath
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 251:147095
We have applied positron annihilation induced Auger-gamma coincidence spectroscopy to identify important mechanisms responsible for the emission of low energy electrons following the sudden creation of holes in bilayer graphene on copper substrate. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe54df50600c49771b763b50bb68f1ca
https://doi.org/10.1016/j.elspec.2021.147095
https://doi.org/10.1016/j.elspec.2021.147095
Autor:
A. R. Koymen, N. K. Byrnes, Alex H. Weiss, A. J. Fairchild, R. W. Gladen, Varghese Anto Chirayath
Preliminary results are presented from a new positron beam system currently under development at the University of Texas at Arlington for the coincident energy measurement of Doppler-shifted annihilation quanta and positron-induced Auger electrons. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d580d8ceae71a02c2d8f8f6c09125856
http://arxiv.org/abs/1907.10582
http://arxiv.org/abs/1907.10582
Publikováno v:
25TH INTERNATIONAL CONFERENCE ON THE APPLICATION OF ACCELERATORS IN RESEARCH AND INDUSTRY.
In this paper, we present the simulations of an electrostatic quadrupole quadruplet (EQQ) lens system that will be used in a new sub-micron multi-ion beam for radiobiological studies. The new sub-micron beam will be used to carry out fine controlled
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbd1bf36183ca37756cce0bd85d7d13b
https://doi.org/10.1063/1.5127677
https://doi.org/10.1063/1.5127677
Autor:
A. J. Fairchild, Alex H. Weiss, M. D. Chrysler, Varghese Anto Chirayath, R. W. Gladen, A. R. Koymen
Positronium (Ps) formation on the surface of clean polycrystalline copper (Cu), highly oriented pyrolytic graphite (HOPG) and multi layer graphene (MLG) grown on a polycrystalline copper substrate has been investigated as a function of incident posit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48c7d63c1977125d6188250d2dc3d97c