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SUMMARY:Development of a project for a universal trap for storing ultracol
 d neutrons
DTSTART;VALUE=DATE-TIME:20241024T133000Z
DTEND;VALUE=DATE-TIME:20241024T140000Z
DTSTAMP;VALUE=DATE-TIME:20260809T192451Z
UID:indico-contribution-4239@cern.ch
DESCRIPTION:Speakers: Alexey Fomin (NRC "Kurchatov Institute" - PNPI)\nThe
  project assumes that in one installation two traps are installed on the s
 ame axis: material and magnetic. By rotating the trap system around an axi
 s\, it is possible to carry out gravitational capture of UCNs either into 
 a material or into a magnetic trap. Thus\, on one installation it is possi
 ble to compare the material and magnetic storage of UCNs under the same co
 nditions. It is also important to note that these two measurement methods 
 differ methodically: in a material trap\, the neutron lifetime is obtained
  as a result of extrapolation\, while in a magnetic trap it is measured di
 rectly. Such a measurement scheme will make it possible to get rid of a nu
 mber of systematic uncertainties in measurements with different traps and 
 is proposed for the first time. The gravitational capture of UCNs in a mag
 netic trap proposed in the project is a fundamentally new approach that ha
 s never been implemented before. Possible systematic effects due to neutro
 n depolarization and the turbine effect in a magnetic trap are considered.
  The experiment can be carried out on the ultracold neutron source under c
 onstruction at the PIK reactor. The design of the installation and the pla
 n for its location in the main reactor hall have been developed. The study
  has been carried out with the support from the Russian Science Foundation
 \, grant no. 23-22-00169\, https://rscf.ru/project/23-22-00169/.\n\nhttps:
 //indico.particle.mephi.ru/event/436/contributions/4239/
LOCATION:Hotel Intourist Kolomenskoye 4*
URL:https://indico.particle.mephi.ru/event/436/contributions/4239/
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