Dear experts,
I want to calculate the energy deposition due to electrons and gammas emitted from I-131 separately. I have used ISOTOPE card to define I-131. I do not want to use the AUXSCORE card, since it will fold the fluence to dose with a conversion factor. Is there any to score the deposited energy separately using any user defined routine with ICODE variable?
Regards,
Riya
The fluence to dose conversion is performed when you score DOSE-EQ, and in that case AUXSCORE allows you to change the conversion coefficient set. When you score ENERGY or DOSE, there is no folding involved, and AUXSCORE allows you, in fact, to filter as a function of the particle type, as you aim to do.
Nevertheless, note that such a disentangling is rather artificial, since in reality energy deposition is exclusively due to electrons, and the resulting fractions vary as a function of the adopted EM thresholds.
Dear @ceruttif ,
Thank you for the clarification. So I need to keep the Set as BLANK and Part = PHOTON/ELECTRON (as we want)) in AUXSCORE if USRBIN is scored with Part = ENERGY, right?
Also, my intention was to distinguish at the emission level, since you rightly pointed out that energy deposition is due the electron only in the end. So, if the goal is to distinguish at emission level, then two separate runs with source routines, one for gamma spectra and one for beta need to be employed. This is the only route. Please correct me if I am wrong.
Regards,
Riya
Right.
And your strategy is right too. I’d think of the use of the usrmed routine (triggered by the MAT-PROP card), killing [by WEE = ZERZER] either ‘primary’ electrons or photons as they enter your material (assuming for instance - if applicable to your case - a point source in a tiny vacuum sphere, allowing you to make the particle suppression on the sphere boundary).