PAMELA (Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics)
Study cosmic rays to look for dark matter and antimatter
The mission is the liability of Roscosmos, the launch date was on June 15, 2006 and the mission ended in December 2009.
The space mission PAMELA, part of the RIM (Russian-English-Missions) is currently the most advanced observatory for the study of cosmic rays. The results of the mission are the liability of Roscosmos, the launch date was on June 15, 2006 and the mission ended in December 2009.
PAMELA instrument was installed onboard the satellite RESURS DK1 of TsSKB-Progress (Russia) and entered June 15, 2006 on an orbit at a height between 350 and 600 km by a Soyuz launcher class. The PAMELA satellite-borne experiment was launched from the Baikonur cosmodrome and it is collecting data since July 2006. The instrumental apparatus PAMELA is composed of a permanent magnet, a tracking system consists of 6 floors silicon microstrip, a trigger system and measuring the time of flight plans consisting of three double and segmented scintillation counters, a calorimeter image consists of 22 planes of tungsten and 44 planes of silicon, a system of scintillation counters for anticoincidence, a neutron detector realized with 36 3He detectors placed on two levels, a scintillation counter for triggering particles high energy.
The primary scientific objective of the mission PAMELA is the search for evidence of exotic matter, that of non-baryonic matter, which is not expected in the Standard Model of elementary particle physics, and the search for antinuclei.
Other important scientific purposes are to study the dependence of the average life of cosmic rays in our Galaxy, the study of transport models and secondary production of cosmic radiation in the Galaxy, the monitoring of solar activity over a long period.
Are measured energy spectra of antiprotons, positrons, protons and electrons up to several hundred GeV and the nuclear and isotopic components of cosmic rays, especially with regard to the recognition of antinuclei.
Having provided the instrument PAMELA for installation on the satellite, the activities’ main course are related to the control of the mission for the part about the experiment itself, receiving data from the satellite Pamela Resusr DK1, data analysis and communication and dissemination of results.
Some of the international agreements are presented in the following. It is the program agreement specifically between ASI and INFN, inserted within the Framework Convention. The experiment is conducted by an International Collaboration, led and composed by the INFN of Bari, Florence, Naples, Tor Vergata and Trieste, by the National Laboratories of Frascati, Institutes Russians MEPhI and FIAN Lebedev of Moscow and Ioffe of St. Petersburg, the University of Siegen in Germany and the Royal Technical Institute in Stockholm.
The mission is carried out in the framework of an agreement-contract between INFN and Roscosmos for the integration of the payload on the satellite Resurs DK1, the launch and the downlink of 10 Gigabytes of data per day.
There is also a collaboration agreement for Pamela between INFN and the RAS, which provides an international committee mixed INFN-RAS to follow the mission Pamela.