fertieg95
Dołączył: 23 Wrz 2010 Posty: 397
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Wysłany: Czw 3:57, 25 Lis 2010 Temat postu: technology |
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U.S. National Aeronautics and Space Administration plans to launch in August 2011, \Detectors will be in October 2013 flew by Jupiter, Earth's gravity, is expected to reach the orbit of Jupiter in 2016 to investigate the existence of Jupiter on the ice core; to determine the content of Jupiter Sheung Shui; ammonia content in the atmosphere; of Jupiter's atmospheric convection and the origin of Jupiter's magnetic field and polar magnetosphere, tasks scheduled for the end of October 2017. Detectors will be subjected to intense cosmic rays, where the irradiation of intensity within the solar system apart from the sun than any probe other than the place visited.
detectors are testing
Artesyn Technologies compile
when the Galileo probe in 1995 and 2003 to visit Jupiter, the electronic device by a special radiation shielding device . Even so, the Galileo probe was not so severe to survive under conditions of the radiation field, however, the detector can be Juno. But Juno does not rely on radiation detectors in the vault, engineers also set a specific detector around the wooden track, after Jupiter's polar regions, thus minimizing the equatorial radiation belts of Jupiter and the rings of contact time . Also used the Mars radiation environment has been used in anti-radiation measures, of course, although the radiation environment of Mars than the Earth to the serious, but not Jupiter so cruel, drawing on the Martian radiation environment, technology, help to strengthen the anti-detector radiation technology maturity. Jet Propulsion Laboratory when the vault radiation during the test simulated the real Jupiter radiation environment to ensure that the original design to meet the conditions of space flight and the Jupiter environment. In addition, anti-radiation device on the detector will be tested through the emission of gamma rays of cobalt particles, the experimental results for Juno, the radiation detector to provide a more reliable measure.
5 19, in the elevated Lockheed Martin clean room,[link widoczny dla zalogowanych], lifting the arch anti-radiation detector module to promote, further system integration testing. Assembly and test process is to include the installation of solar panels,[link widoczny dla zalogowanych], the entire testing process will continue until next spring, the detector is expected to launch in August 2011. According to Lockheed Martin program director 蒂姆罗加斯 Parrini (Tim Gasparrini) Description: Juno detector subsystem assembly process is progressing well, a lot of flight test data unit and aviation electronic components installed in succession radiation testing on the dome, after which, microwave radiometer will be installed as the first device in place. Lockheed Martin Space Systems in Denver is being assembled detector. Italian Space Agency is also involved in the project, providing part of the IR and radio experiments.
Juno probe in orbit flight simulation map
Jupiter and its moons in the formation of high energy particles near the field, this magnetic field strength ratio around the Earth's magnetic field strength is weaker, so that Jupiter can resist the stream of charged particles from the sun. Electrons, protons, ions near Jupiter by Jupiter under the influence of high-speed rotation, accelerated to nearly the speed of light. Jupiter's radiation belts, a large donut shape, around the perimeter at the equator and extends forward through the Europa Europa, Jupiter's atmosphere by the outward expansion of about 650,000 km.
\\As we all know, when we check X-rays should be the protection of other organs, however,[link widoczny dla zalogowanych], the detector should also be Juneau central processing equipment to its proper protection. Ao Xinan Institute in San Antonio, the detector project chief scientist Scott Bolton (Scott Bolton) that: \Juno central processor through the detector near Jupiter may be out of control. \. In the selection, other materials can be made into good radiation isolation zone, but the engineers have chosen titanium as a raw material, which is due to its relatively soft texture, appear able to withstand vibration during launch, and other materials not in Under such circumstances continue to maintain stability. Each titanium radiation shielding device area of about one square meter, the thickness of one centimeter, 18 kg. Made into a whole by a titanium mesh size of the radiation shielding a SUV, the central control system of the detector and data processing equipment, power and other electronic equipment units of about 20 modules tightly to cover up, the quality of the vault about 200 kg. Of course, the vault can not block the radiation from Jupiter for each electron, ion or proton, but the radiation detector device can minimize the impact of slowing the aging equipment, to ensure completion of tasks, even extend the life of the detector.
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