From: <48...@la...> - 2007-09-17 22:08:05
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Check this out: http://en.wikipedia.org/wiki/Radiation_hardening There is a movie (The Manhattan Project) based on some kid building a nuclear bomb. The detonation control is built using various electronic components from common devices. The culmination of the movie indicates that the timer starts increasing at an exponential rate. This is BS, though, since radiation causes either complete malfunction or sporadic behavior. (Just a little related trivia...) > eek yeah that is a lot and lead would be heavy too. Too much to launch > for such a small computer. I'm curious about what makes a device > radiation hardened? I wonder how long an aluminum foil wrapped gumstix > would last :-? > > On 9/17/07, cro...@fi... <cro...@fi...> wrote: >> Wow...thank you for the information. Ok, I'm entering a >> pico-satellite/cubesat design competition. The website sais the >> satellite will be launched into "low-earth orbit." This orbit is defined >> at a height of 200 - 2000 km above the earth surface. The reason why >> Gumstix peaked my interest for this was because I'm using it for a UAV >> project at my school, so the learning curve would be none. Also, The >> size of the Gumstix/Robostix package is perfect for the 10cm X 10cm X >> 10cm size restriction of a pico-satellite. To my understanding 1cm of >> lead reduces gamma radiation 50 percent. That means 3 cm would be around >> 94%...that is alot of lead...but thank you all...it seems I won't be >> able to use gumstix but instead should look into already radiation >> hardened devices. >> >> ------------------------------------------------------------------------- >> This SF.net email is sponsored by: Microsoft >> Defy all challenges. Microsoft(R) Visual Studio 2005. >> http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > |