PLATAN BTN-NEUTRON MATRYOSHKA-R

 
homepage
INTERNATIONAL SPACE STATION
EXPERIMENTS AND RESEARCHES
SCIENCE RESEARCH ON ISS RUSSIAN SEGMENT
STUDY OF COSMIC RAYS
BTN-Neutron EXPERIMENT
Research Supervisor: Doctor of Sciences
(Physics/Mathematics) I.G. Mitrofanov

russian
   

SCIENCE HARDWARE USED:

  • Electronics unit BTN-ME
  • Spare BTN
  • BTN unit

SUPPORT ITEMS:

  • Platform with locks
  • Cable set
  • Cable holder
  • Cable reel with cable.
 

PURPOSE:

  • Building a physical model for generation of charged and neutral particles during solar flares.
  • Developing a physical model of neutron albedo of the earth atmosphere with regard to helio- and geophysical environment, measurement point longitude and altitude effects, time of the day and lighting conditions, atmosphere conditions.
  • Developing a physical model of neutron background in the vicinity of the ISS in different flight conditions, as well as recording space gamma bursts.

OBJECTIVE:

  • Mounting the onboard neutron telescope, cable routing inside and outside the pressurized compartment and conducting photo (video) imagery of their location during EVA
  • Measuring direct and scattered fluxes of high-energy neutrons of solar flares with energies from 10 to 15 MeV.
  • Measuring neutrons resulted from nuclear reactions induced by space rays in the earth’s upper atmosphere in the range of thermal (0.001 – 0.1 eV), epithermal (0.1 – 1.0 eV), resonance (1 – 0.3 eV) and fast (0.3 – 15 MeV) energies.
  • Measuring gamma radiation in energy ranges between 30 keV to 100 MeV.

EXPECTED RESULTS:

Experimental spectrometric investigations of neutron fields on the ISS will allow to

  • Clarify the on-orbit radiation environment models
  • Clarify neutron source models in near-earth space environment and evaluate their contribution in a complete radiation dose received by cosmonauts during EVA
  • Obtain data on high-energy neutron fluxes with energies up to 16 MeV coming from powerful solar flares with regard to albedo radiation of the earth
  • Build an operational model of neutron background environment on the station
  • Clarify existing solar activity models
  • Obtain data on fluxes of rigid electromagnetic space rays component

EXPERIMENT RESULTS:

  • Measurement data on spatial and time distributions of radiation characteristics of space ionizing radiation (neutron and gamma components) outside the Service Module of the ISS RS;
  • Correlation data on radiation environment parameters outside the Service Module of the ISS RS obtained through calculation with the results of measurements made by science hardware BTN-M1 and results of other Russian and international experiments;
  • Measurement data on solar flare parameters in neutron and gamma range.
 

 

 

 

 

Official WEB-site of S.P.Korolev RSC Energia
E-mail:mail@rsce.ru