Detectors for Moon Investigations
Research and Design of X-g-rays and Neutron Detectors (GRAND) for Space Experiments and Moon Surface Investigation with Neutral Particle Beams.
Tech Area / Field
- INS-MEA/Measuring Instruments/Instrumentation
3 Approved without Funding
NIIIT (Pulse Techniques), Russia, Moscow
- MIFI, Russia, Moscow
- Astrophysikalisches Institut Potsdam Sonnenobservatorium Einsteinturm, Germany, Potsdam\nMcDonnel Douglas Space System Co, USA, MO, St Louis
Project summaryResearch and design of X-gamma-rays and neutron detectors (GRAND) for space experiments and Moon surface investigation with Neutral Particle Beams".
The aim of this project proposed by RIPT and MEPhI is design and production of instruments for X-rays, neutrons and gamma-rays detection in space experiment sand astrophysical measurements in space.
The focus of work in the project will be on the development of instruments for the international program "PHOTON", concerning the Sun researches. The technology and techniques, however, have wide-ranging applicability, as demonstrated by the interest shown in the work by the US company McDonnell-Douglas for the "Double-Eagle" program, connected with the Moon surface investigations with neutral particle beams.
The project "PHOTON", including in the Russian Federal program of Space Researches, is an international program for observation of the Sun during the next solar-flare cycle in 1998. The specific aims of "PHOTON" mission are:
- study of a temporal behavior of the energy spectra of hard electromagnetic radiation in the wide energy band from 20 keV up to 2000 MeV;
- fast timing of the hard X-radiation in flares;
- measurement of the linear polarization of a hard X-radiation from the flares;
- observation of neutrons with energy E > 5 MeV and the measurement of their energy spectrum in the region 20–300 MeV;
- study of energy spectra, charge mass composition of ions accelerated in flares;
- registration of energy spectrum of energetic electrons;
- registration of electrical and magnetic fields in the orbit.
Data from PHOTON mission and from other space laboratories (YOKHO, ULISS et al) will provide full Sun observations in the next activity cycle and give information on Sun flares energy nature. Received data will be used for the following Sun activity and geo-biophvsical Earth processes correlations research.
Russian-Indian experiment with "Natalia-2M" and "RT-2" te-lescopes will be carried during the PHOTON mission.
German scientists from Astrophysical Institute, Potsdam, will participate in the PHOTON mission.
Research and design of scintillation spectrometer is planned for gamma-rays and neutron registration.
The instrument "Natalia-2M" includes two spectrometers: upper and lower one with area 1350 cm2. The upper spectrometer is surrounded by plastic scintillation dome and counter. Energy resolution is 13% on 0.662 MeV, 6% on 6 MeV, 12% on 1000 MeV.
For the Moon surface fluorescence elements analysis the X-detector on the base of scintillating counters is planned to be designed. This detector will have high sensitivity in X-energy range (1-100) KeV, high registration rate - order million pps and energy resolution better than 10% for E = 5.9 KeV.
For realization this project RIPT and MEPhI have necessary production facility and scientific personal with large experience in development detectors for space researches.
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