Ah i see so the P type is negatively charged because some of the electrons from the N type have filled the holes on that side.
But why does the alpha particle only have to interact with the silicon atoms in the depletion region and not everywhere else in the diode? I read somewhere that there...
Ah i think its more that the alpha particle enters the diode which is placed so its n and p sides are laying on top of one another and not side by side. The alpha particle effectively creates turmoil pulling off electrons and making electron-hole pairs all the way through which are then forced...
So are you saying that the alpha particle is interfering with the movement of electrons from the negative to positive causing the holes to progress towards the positive? That seems to make sense to me. But.. what happens if the alpha particle hits the positive side instead wouldn't it have the...
i am writing a lab report into an experiment i did using a photodiode to detect alpha particles. I am curious however as to how a photodiode actually works. The alpha particles are emitted from the source, they hit the diode and then what happens? Its somehow changed into an electrical signal...
Ah yes thankyou, i knew it was the derivative but didn't think to put the delta-r on the RHS.. i should have spotted this. I probably didn't because i was looking at websites that were taking the force at the front (d-r) of the object minus the force at the rear (d+r) and using this to calculate...
I've been trying to derive the Roche Limit and have been successful for the most part but out of curiosity i was wondering how the tidal force equation was derived to be: -2GMmr/d^3 ??
Also on a related note i always get the constant at the front of the Roche Limit equation to be the cube...