4 ms·
You don't need to block gamma radiation completely to increase the electronics reliability :) Maybe you could improve the system availability considerably by a
by arijo 2y ago
You don't need to block gamma radiation completely to increase the electronics reliability :)
Maybe you could improve the system availability considerably by a bit of gamma radiation protection combined with some more parallelism of the components ..
- adastra22 2y agoUsually partial blockage is worse, because you end up with a spray of secondary particles instead of a single ray.
- arijo 2y agoMakes intuitive sense, thanks for the insight. A second layer blockage for the secondary particles wouldn't have to be as dense or am I missing important physics? (I guess a lot of gamma radiation would still reach this second layer so please ignore my question :)
- adastra22 2y agoKeep adding layers until you get to 1.3 feet of lead and it’ll work.
- arijo 2y agohaha thanks for the correction - I was under the Turtles All the Way Down mindset :)
- numpad0 2y agoIsn't that more like how you make bombs than armors more effective - with backside spalling and secondary fragmentations?
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- exe34 2y agocan you block a hemisphere? the other 2pi steradians are shielded by the earth...
- m4rtink 2y agoMaybe the secondaries could be blocked by different/lighter materials ? Basically a Whipple Shield for radiation. :)
- adastra22 2y agoStopping power is basically correlated with mass.
- quailfarmer 2y agoThis may be true for high energy particles, but the majority of TID damage is done by higher flux lower energy, for which shielding is often viable!
- adastra22 2y agoThe point is that shielding turns a single high energy particle that would otherwise strike and probably destroy a single transistor, into a veritable spray of lower energy particles causing bit flips or worse all over the circuit. This spray of particles can be stopped... with 1.3 feet of lead shielding.
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