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SUMMARY:Development of the low-energy nuclear physics in Russia and projec
 t of the Universal Compton Radiation Source
DTSTART;VALUE=DATE-TIME:20261027T123000Z
DTEND;VALUE=DATE-TIME:20261027T130000Z
DTSTAMP;VALUE=DATE-TIME:20261021T015353Z
UID:indico-contribution-6129@cern.ch
DESCRIPTION:Speakers: Leonid Grigorenko (Flerov Laboratory of Nuclear Reac
 tions\, JINR\, Dubna)\nDevelopment of the low-energy nuclear physics in Ru
 ssia is discussed with special emphasis on the project of the Universal Co
 mpton Radiation Source (UCRS). \n\nThe construction of the UCRS accelerato
 r complex was proposed as one of the first large-scale scientific project 
 of the Russian National Center of Physics and Mathematics (Sarov) [1]. The
  construction started in the beginning of 2026 and the commissioning is pl
 anned for 2031. The complex consists of two electron accelerators with max
 imum energies $E_e = 120$ MeV (120 MeV LINAC) and $E_e = 2.0$ GeV (200 MeV
  LINAC + booster synchrotron) and two storage rings operational in the ene
 rgy ranges $E_e \\sim  70-120$ MeV and  $E_e \\sim  0.5-2.0$ GeV. The (qua
 si)monochromatic gamma and X-ray quanta are generated by the inverse Compt
 on scattering of laser photons with  $E_{ph} \\sim  0.1-3.3$ eV by relativ
 istic electrons. Energy of generated photons  $E_{\\gamma}$ continuously c
 overs the range from 10 keV to 1.5 GeV providing a broad scientific univer
 salism of the complex. \n\nThe main research objectives of the complex are
  the fundamental problems of nuclear photonics in the energy range  $E_{\\
 gamma} \\sim 0.5-60$ MeV [2]: photonuclear reactions\, photofission\, nucl
 ear spectroscopy\, high-precision study of the regions of giant dipole res
 onance and pygmy dipole resonance\, reactions relevant to nuclear astrophy
 sics\, etc. X-ray radiation with $E_{\\gamma} \\sim 10-700$ keV is planned
  to be used for materials science\, non-destructive testing and biology. T
 he availability of high-energy gammas with $E_{\\gamma} \\sim 60-1500$ MeV
  opens scientific opportunities in the field of hadron photonics and high-
 energy nuclear physics (Compton scattering on nucleons and nuclear matter\
 , meson degrees of freedom in nuclear matter\, etc.). Electron bunches wit
 h a maximum energy up to $E_{e} \\sim 2$ GeV can be used for generation of
  intense ultrashort pulses of gamma radiation for studies of fast processe
 s\, and in combination with the planned terawatt laser for research in the
  field of high-energy density physics (e.g. nonlinear electrodynamics\, et
 c.). \n\n[1] https://ncphm.ru/science/infrastructure/megascience/iki\n\n[2
 ] L.V. Grigorenko et al.\, Scientific program of INOK – Compton source o
 f the monochromatic gamma-quanta at NCPhM\, FIZMAT 3-4 (2023) 121-259 (in 
 Russian) [https://fizmat-journal.ru/issues/2023/3].\n\nhttps://indico.part
 icle.mephi.ru/event/626/contributions/6129/
LOCATION:Sevastopol hotel Conference Hall 2
URL:https://indico.particle.mephi.ru/event/626/contributions/6129/
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