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10:56 pm
March 28, 2010
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Luke Maurits
| | Adelaide, Australia | |
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Main CLLARE workgroups: Mission Planning, Navigation and Guidance. I do maths, physics, C, Python and Java.
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6:00 am
March 29, 2010
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Rocket-To-The-Moon
| | Altus, Oklahoma, USA | |
| Member | posts 685 | |
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Lots of good information on that page. The draw of using a lightweight carbon fiber CM is somewhat offset by its lack of radiation shielding. I don't know if carbon fiber + shielding would be lighter than an aluminum CM.
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Main Workgroups: Propulsion & Spacecraft Engineering
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11:26 pm
March 29, 2010
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brmj
| | Rochester, New York, United States | |
| Member | posts 402 | |
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Wonderful find! It's good to see some real information on this, since we'd essentially been going off of generalizations and guesswork on this topic.
I wish we could just stick a GNU/Linux box with ECC memory in an analogous radiation environement and see just how big an issue this is in practice.
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Main work groups: Propulsion (booster), Spacecraft Engineering, Computer Systems, Navigation and Guidance (software)
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7:41 am
April 2, 2010
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Luke Maurits
| | Adelaide, Australia | |
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| posts 1483 | |
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brmj said:
Wonderful find! It's good to see some real information on this, since we'd essentially been going off of generalizations and guesswork on this topic.
I wish we could just stick a GNU/Linux box with ECC memory in an analogous radiation environement and see just how big an issue this is in practice.
Random, not-at-all-thought-out idea: how high does one have to get before the radiation environment becomes roughly like that of LEO? If most of the shielding that makes life at ground level so possible is provided by the atmosphere, and the atmosphere gets quite thin quite quickly (which it does, by my understanding), can we do meaningful radiation testing by floating stuff up on balloons? I am sure we have all seen those "balloon to the edge of space" projects that are so popular at the moment (and which don't really get at all close to the edge of space, using the 100 km definition!) – could we use something like that to test electronics?
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Main CLLARE workgroups: Mission Planning, Navigation and Guidance. I do maths, physics, C, Python and Java.
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12:04 pm
April 2, 2010
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brmj
| | Rochester, New York, United States | |
| Member | posts 402 | |
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I think the primary radiation problem comes from the Van Allen belts, rather than LEO in general. I expect we could test for the LEO radiation environment using a baloon, though, so that ought to be excellent for testing cubesats and components there of, if not stuff for CLLARE.
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Main work groups: Propulsion (booster), Spacecraft Engineering, Computer Systems, Navigation and Guidance (software)
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