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In 1983 Garibian, together with his disciple Yang Chi, published a monograph: “X-Ray
Transition Radiation” which summarized data collected during years of theoretical and experimental research on transition radiation appearing as a result of fast charged particles passing through the boundary between
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Garibian's main scientific achievement was the discovery of X-Ray
Transition Radiation and the development of the Theory of Transition Radiation. He also showed the feasibility of a functional Transition Raditation Detector (TRD) - a tool for identification of high energy ultrarelativistic particles.
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In the beginning of the 1960s the first experiment on the registration of TR generated by muons of cosmic rays was conducted on Mount
Aragats. The research of TR became more powerful after the Yerevan Synchrotron started its work in 1967. Here, theoretical investigation of TR headed by Garibian was
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in 1946, where the theoretical existence of transition radiation was predicted. The new type of radiation appearing as a result of charged particle passing through the boundary between two layers of matter. In 1959, Garibyan discovered x-ray transition radiation, the intensity of which had a linear
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In the end of the 1940s and the beginning of the 1950s, the main points of interest of the researchers at the
Yerevan Institute of Physics were cosmic rays and the physics of elementary particles. One of the problems bothering experimental physicists working with cosmic rays at that time were
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from 1951 to 1964 (on the topics of classical and quantum electrodynamics, theory of electrons and theory of relativity) and from 1970 to 1973 (on the topic of the passage of fast particles through matter). In the years 1965-1969 he worked also as a Chief of the
Theoretical Department of
293:, Armenian AS. Under his leadership many of his disciples achieved their Doctoral degrees and became prominent scientists. He was also interested in documenting the history of progress of physics in Armenia. One of his papers on this topic was co-authored with physicists
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measurements of very high energies of the relativistic particles in the cosmic radiation, as with the increase of energy levels of the particles the available methods of registration of their energies were becoming less and less effective.
236:. All his life he worked at the Yerevan Physics Institute consecutively as researcher, scientific secretary of the institute, deputy director and head of laboratory. He actively participated in the creation of the Yerevan
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and
Jelepov and was dedicated to the Artyom Alikhanian's 60th birthday. From 1966 Garibian worked also as an Executive Editor of the journal "Proceedings of the Academy of Sciences of the Armenian SSR. Physics ".
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of the particle. Due to this feature, x-ray transition radiation received immediate practical implementation, as it made it possible to identify ultra-relativistic charged particles and to measure their energies.
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R A Sardaryan, Y.G. Shahnazaryan, Yang Chi "Gregory
Markarovich Garibian", AS of ASSR, Matherials to the Bibliography of Scientists of the ASSR, v.40, p.31-32, Publisher AS ASSR, Yerevan, 1987 (in Russian and
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200:. Physical science was Garibian's passion in life. Even at a very young age he followed news in the world of physics and was very excited when in 1942 he learned about the Alikhanian brothers’ expedition to
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R A Sardaryan, Y.G. Shahnazaryan, Yang Chi "Gregory
Markarovich Garibian", AS of ASSR, Matherials to the Bibliography of Scientists of the ASSR, v.40, p.35, Publisher AS ASSR, Yerevan, 1987 (in Russian and
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In following years
Garibian with his disciples continued the development of the Theory of Transition Radiation. Their theoretical works stimulated experimental research on transition radiation in Armenia.
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correlated with the experimental research headed by A. Alikhanian. Those studies played a decisive role in prompting similar work throughout the world: in the
Brookhaven National Laboratory (by prof.
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L A Vardanyan “Gregory Markarovich Garibian”, AS of ASSR, Matherials to the Bibliography of Scientists of the ASSR, v.40, Publisher AS ASSR, Yerevan, 1987 (in Russian and Armenian)
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Garibian tried to develop methods that would help to resolve that problem. As a starting point of his research, he used results published in the article written by
180:(1973–1991). He is known for developing the Theory of Transition Radiation and showing the feasibility of functional transition radiation detectors (TRDs).
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During his life Garibian, besides being a scientist, was also an educator: he lectured to students at the Physical Mathematical Department of
176:(December 13, 1924 – June 8, 1991) was a Soviet Armenian physicist, academician-secretary of the Department of Physics and Mathematics of the
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204:(Armenia) in order to search for protons in cosmic rays. Garibian was accepted into the Department of Physics and Mathematics of
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196:(Azerbaijan) where Garibian got his general education. In 1943 he graduated from school in Baku and went to
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Garibian G M, Yang Chi “X- Ray Transition Radiation” Publisher Academy of Sciences of ASSR, Yerevan, 1983
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Luke C.L. Yuan, Brookhaven National Laboratory, p. 2, Upton, New York, USA and CERN, Geneva, Switzerland
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Garibian G M, Yang Chi “X- Ray Transition Radiation” Publisher AS ASSR, Yerevan, 1983 (in Russian)
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442:"THEORY OF RADIATION GENERATED BY CHARGED PARTICLES PASSING THROUGH CONTINUOUS PERIODIC MEDIUM"
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Academician-Secretary of Department of Physics and Mathematics of AS, Armenian SSR (1973–1991)
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431:,"Health Physics Division annual progress report", Oak Ridge National Laboratory, p.137,1959
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192:, Georgia) in a family of a Medical Doctor and a homemaker. Eventually the family moved to
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and also in the establishment of high-altitude cosmic ray stations on Mount Aragats.
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567:"Transition Radiation from Relativistic Electrons Crossing Dielectric Boundaries"
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1966-1991 - Head of Laboratory of Interaction of Charged Particles with Matter
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in 1943. After that time Garibian dedicated himself to scientific research in
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Peterson, Department of Physics and Astronomy, p. I-3, Univ.Hawaii, Honolulu
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Garibian, G. M.; Yang, C. (1986). "Quasi-Cherenkov radiation in crystals".
544:, Nuclear Instruments and Methods in Physics Research A326 (1993) 434-469
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557:,"Nuclear Instruments and Methods in Physics Research", A522 2004
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Nuclear Instruments and Methods in Physics Research Section A
531:, JETP (USSR) 37 (1959) 527-533; Sov.Phys.JETP 10 (1960) 372
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608:"Some New Developments on Transition Radiation Detectors"
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which he graduated from in 1948 immediately to leave for
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Artsimovich L A, Migdal A B, Zhelepov V P, Garibian G M,
522:"Transition Radiation Effects in Particle Energy Losses"
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Candidate of Physical and Mathematical Sciences (1952)
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Development of the Theory of Transition Radiation, TRD
502:"Contribution to the Theory of Transition Radiation"
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Garibian died on June 8, 1991, in Yerevan, Armenia.
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Recipients of the Order of the Red Banner of Labour
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Corresponding Member of the AS, Armenian SSR (1963)
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Doctor of Physical and Mathematical Sciences (1961)
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620:"Development of the Transition Radiation Detector"
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398:"Specialists re-evaluate transition radiation"
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588:, Cabinet of Physics СПбАППО (in Russian)
346:Full member of the AS, Armenian SSR (1971)
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291:Institute of Radiophysics and Electronics
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324:1959-1965 - Scientific Deputy Director
174:Gregory Markari (Markarovich) Garibian
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645:,"УФН 95 385-388",1968 (in Russian)
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368:Order of the Red Banner of Labour
313:Work at Yerevan Physics Institute
178:Armenian Academy of Sciences (AS)
569:, Phys. Rev. 142, 272–276 (1966)
542:"Transition radiation detectors"
444:,"Nasa Technical Documents",1973
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321:1952-1958 - Scientific Secretary
555:"TRDs for the third Millennium"
681:Moscow State University alumni
579:"Garibian Gregory Markarovich"
419:"Garibian Gregory Markarovich"
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643:"Artyom Isakovich Alikhanian"
400:, CERN Courier, Dec. 4, 2001
118:Order of Red Banner of Labour
476:10.1016/0168-9002(86)90493-6
150:Armenian Academy of Sciences
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214:Yerevan Physics Institute
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286:Yerevan State University
489:"PHENIX TRD Simulation"
332:Degrees and Nominations
226:Quantum electrodynamics
216:, which was founded by
206:Moscow State University
98:Moscow State University
318:1948-1951 - Researcher
440:Garibian G.M, Chi Y.,
234:High energy particles
279:Stanford Accelerator
706:Theoretical physics
691:Armenian physicists
468:1986NIMPA.248...29G
224:, in the fields of
222:Theoretical physics
584:2021-05-06 at the
527:2019-04-10 at the
507:2020-10-02 at the
275:Luke Chia-Liu Yuan
260:dependence on the
701:Soviet physicists
540:Boris Dolgoshein
218:Artyom Alikhanian
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162:Isaak Pomeranchuk
126:Scientific career
45:December 13, 1924
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462:(1): 29–30.
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375:Publications
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142:Institutions
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61:(1991-06-08)
59:June 8, 1991
676:1991 deaths
671:1924 births
553:P.Spinelli
295:Artsimovich
238:Synchrotron
230:Cosmic rays
84:Citizenship
74:Nationality
665:Categories
385:References
41:1924-12-13
632:Armenian)
598:Armenian)
184:Biography
136:physicist
582:Archived
525:Archived
505:Archived
253:Ginzburg
78:Armenian
464:Bibcode
306:media.
210:Yerevan
190:Tbilisi
67:Yerevan
49:Tbilisi
491:, 2003
357:Awards
299:Migdal
277:), at
232:, and
198:Moscow
132:Fields
114:Awards
257:Frank
255:and
194:Baku
148:and
88:USSR
56:Died
35:Born
472:doi
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