|Message: RE: Filtering optical photons and counting them||Not Logged In (login)|
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You may want to use G4SDParticleWithEnergyFilter, which allows you to specify both particle type(s) and upper and lower kinetic energy limits. Please consult to the header file of this filter class. > -----Original Message----- > From: Hugo Rivera [mailto:email@example.com] > Sent: Monday, June 11, 2007 1:46 PM > To: publichypernews > Subject: Filtering optical photons and counting them > > *** Discussion title: Hits, Digitization and Pileup > Email replies to PublicHyperNews@slac.stanford.edu must include: > In-Reply-To: <"/hitsdigits/155"@geant4-hn.slac.stanford.edu> > Subject: ...change this to be about your reply. > > Hello: > I am trying to simulate a Cerenkov water tank detector and I > need to count > the number of optical photons arriving at my PMT per event, > but only those > photons with energies lower than 4.0 eV and higher than 2.2 > eV. I implemented > a primitive counter with a filter using ExN07 as guide, but I > can only filter between > particle types and not energy ranges; in other words, how can > I count the > number of photons with energies inside a given energy range > arriving at my > PMT? > Thanks in advance for your help, and my apologies if this > question is silly, but I am > confused on how to create Sensitive Detectors in GEANT4. > > Hugo >
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