[Ronja] Progress report

[Karel Kulhavy]

---- Silvije <discover at fly.srk.fer.hr> schrieb:
> 
> 
> Hi Clock,
> 
> please look at this 
> http://www.techlib.com/area_50/enricosprojects.htm#Worlds%20Smallest
> 
> and
> 
> http://www.techlib.com/science/ion.html
> 
> you are designing a new rx module with prebiased pin diode, all enclosed
> in metal box... what you may be getting from it is something similar to an
> ionization chamber

The old RX is also a prebiased pin diode in an enclosed metal box
- what's the difference?


> 
> therefore you might be picking some noise, if not from something 
> radiactive in close to rx module, than from cosmic radiation maybe?

If their geiger counter really works that means
if a particle strikes Ronja PIN diode it could make
a packet dropout. Can someone try putting something radioactive
next to the PIN and run a packetloss test?

Karel
> 
> Anyway I can confirm that simple darlington transistor as used in
> http://www.techlib.com/science/ion.html#Experimenters%20Chamber
> can sense radioactive source.
> 
> regards,
> s.
> 
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