View source for Tegan's HDGEANT and mcsmear questions

= New code = 
* Poisson statistics smearing still needs a value for the energy of one dark hit.
**Elton: 0.31 MeV, deposited at the center of the module, per pixel fired.  For 10 degrees, 1.0 V OB, and attenuated to the end of the module, 0.11 MeV or so.  This is [current code value]/6.
* The change to the data structure will be just adding 'incident_id="int"' to 'bcalTruthHit.'
**Should we also add EUP/EDN, tUP/tDN to the data structure?
**If we do not, we'll have to grab C_EFFECTIVE and ATTEN_LENGTH from the ccdb in mcsmear instead of doing it in hdgeant like usual.

*I've changed the data structure and tested the output of the new code.  With the old code, a hit would be up to 1 GeV or so, usually around 50 - 300 MeV.
**With the new code, I'm seeing numbers like 0.1 - 5 MeV.  I'm trying to figure out where in the code I might have messed up.

= Old code =
* We need to decide whether or not we want to keep this method available for people to choose to use.