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SUMMARY:Biological protection calculation of the elextron accelerator MT-2
 5 FLNR JINR by using FLUKA software package
DTSTART;VALUE=DATE-TIME:20220715T103000Z
DTEND;VALUE=DATE-TIME:20220715T105000Z
DTSTAMP;VALUE=DATE-TIME:20260912T200141Z
UID:indico-contribution-616@events.sinp.msu.ru
DESCRIPTION:Speakers: Yeldos Bolatkazyyev (JINR)\nPhysical experiments to 
 study collinear cluster tri-partition are planned on the cyclic electron a
 ccelerator MT-25. This is a new type of multibody decay that requires\, du
 e to the small cross-section of the reaction\, work at the maximum intensi
 ty of the electron beam for research.\nThe purpose of this work is to stud
 y the radiation fields that occur at the maximum intensity of the electron
  beam outside the biological protection of the microtron at an energy of 2
 5 MeV.\nIn the course of the work\, measurements of the dose rate of neutr
 on and bremsstrahlung radiation were carried out. Beyond the biological pr
 otection of electron accelerators\, they are the main components of radiat
 ion hazard. For measurements\, a mobile measuring stand was used\, the mai
 n elements of which are neutron and gamma radiation dosimeters UDBN-01 and
  UDBG-01.\nAccording to the results of measurements at elevated beam curre
 nts\, significant excess of the dose rate of braking radiation was detecte
 d at some points of the existing protection. Protection calculations were 
 performed to eliminate weaknesses using the FLUKA software package created
  for Monte Carlo simulation of physical processes. At the same time\, one 
 of the tasks was to conduct a comparative analysis of the measured and cal
 culated data\, since there is practically no work on experimental verifica
 tion of the reliability of the results of the specified software package f
 or electron accelerators in the energy range up to 25 MeV.\nBased on the r
 esults of calculations\, a new project of local protection around the brak
 ing target assembly is presented. The measurement results carried out with
  the installed new protection showed that outside the microtron room\, the
  power of the equivalent dose of braking radiation coincides with the calc
 ulation results and does not exceed the maximum permissible value of 1.2mS
 v/hour (according to the rules of NRB-99/2009).\n\nhttps://events.sinp.msu
 .ru/event/8/contributions/616/
LOCATION: Физический ф-т\, ауд. 5-42
URL:https://events.sinp.msu.ru/event/8/contributions/616/
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