TREK: A cosmic-ray experiment on the Russian space station MIR |
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| Authors: | P B Price D M Lowder A J Westphal R D Wilkes R A Brennen V G Afanasyev V V Akimov V G Rodin G K Baryshnikov L A Gorshkov N I Shvets O S Tsigankov |
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| Institution: | (1) Physics Department and Space Sciences Laboratory, University of California, Berkeley, CA, USA;(2) Space Sciences Laboratory, University of California, Berkeley, CA, USA;(3) Department of Mechanical Engineering, University of California, Berkeley, CA, USA;(4) Soviet Space Research Institute, Moscow, Russia;(5) NPO Energiya, Moscow, Russia |
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| Abstract: | The goals of the TREK experiment, now in place on the MIR Space Station, are to resolve and measure the composition of both odd-Z and even-Z cosmic-ray nuclei up to uranium, to measure the isotopic composition of Fe-group nuclei, and to search for transuranic nucleic and exotic particles such as strangelets. To collect tracks of ultraheavy cosmic rays, exterior panels holding an array of BP-1 phosphate glass 1.2m2 in area and 16 plates thick are now mounted outside the Kvant-2 module on MIR. Heaters and relays regulate the temperature of the glass at 25°±5°C. The detectors will record  103 cosmic-ray tracks withZ 50 during 2.5 years. An interior panel consisting of an array 0.09 m2 in area and 32 plates thick and mounted on the inside wall of the Soyuz spacecraft (attached to the Space Station) will collect tracks of about 13000 Fe and 500 Ni nuclei. |
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