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SUMMARY:COMPTON GAMMA-RAY SOURCE BASED ON 500 MEV ELECTRON ACCELERATOR: UN
 IQUE PARAMETERS AND POSSIBLE APPLICATIONS
DTSTART;VALUE=DATE-TIME:20220715T070000Z
DTEND;VALUE=DATE-TIME:20220715T072000Z
DTSTAMP;VALUE=DATE-TIME:20260912T195038Z
UID:indico-contribution-200@events.sinp.msu.ru
DESCRIPTION:Speakers: Aleksander Kuznetsov (Skobeltsyn Institute of Nuclea
 r Physics\, Lomonosov Moscow State University\, Russia\; Faculty of Physic
 s\, Lomonosov Moscow State University\, Russia)\nThe perspectives and the 
 program of experimental research in the field of nuclear physics on the pr
 ojected source of monoenergetic gamma-quanta based on the Compton backscat
 tering effect of laser radiation from a linear electron accelerator with a
 n energy of 500 MeV are discussed. It is planned to create a facility with
  a high-intensity beam of monoenergetic gamma-quanta with energies from a 
 few to 30 MeV. \nThe outstanding parameters of the facility\, primarily in
  terms of monochromatization and beam intensity\, will make it possible to
  obtain new unique data in the field of the structure of atomic nuclei\, t
 he physics of photonuclear reactions\, including the photofission reaction
 \, and will make it possible to implement methods of both direct measureme
 nts and induced activity at a qualitatively new level. New data obtained u
 sing monoenergetic photons will make it possible to obtain new reliable in
 formation about a number of fundamental problems of electromagnetic intera
 ctions of atomic nuclei\, primarily\, such as the collective modes of nucl
 ear excitations\, the relationship between various decay channels of highl
 y excited states of nuclei\, the mechanisms of reactions with the emission
  of various the number of nucleons. The main problems that will be studied
  at the facility are the structure of the giant dipole resonance (GDR)\, t
 he parameters of nuclear deformation\, and the characteristics of such GDR
  formation processes as isospin and configurational splitting of the GDR. 
 The implementation of the induced activity method with the beam parameters
  that are planned to be achieved will make it possible to obtain data on t
 he cross sections of partial photoneutron reactions with high accuracy and
  reliability and solve the long-standing and well-known problem of signifi
 cant discrepancies in the results of different photonuclear experiments. \
 nThe unique parameters of the gamma-quantum beam at the facility will also
  make it possible to advance significantly in the field of research in nuc
 lear astrophysics. For the first time\, it will be possible to measure the
  cross sections of photonuclear reactions in the region of the correspondi
 ng energy thresholds on bypassed nuclei\, which are necessary for studying
  the currently unresolved scientific problem of the origin of such nuclei.
  A separate program of research on the projected gamma-radiation source wi
 ll be devoted to the study of nuclear photofission. Using a beam of quasi-
 monoenergetic photons with high resolution\, mass\, charge\, and energy de
 pendences of photofission fragments corresponding to decays of well-define
 d excited states in different minima between fission barriers will be stud
 ied.\n\nhttps://events.sinp.msu.ru/event/8/contributions/200/
LOCATION: Физический ф-т\, ауд. 5-42
URL:https://events.sinp.msu.ru/event/8/contributions/200/
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