Search found 7 matches

by Ahmed_Naceur
Mon Aug 02, 2021 1:18 pm
Forum: Gamma transport
Topic: Dose rate vs. Dose (Geant4-Serpent2)
Replies: 4
Views: 484

Re: Dose rate vs. Dose (Geant4-Serpent2)

This is exactly what was used in this study. I finally used mt -12, after a massive tests of other available options.
by Ahmed_Naceur
Fri Jul 23, 2021 4:07 pm
Forum: Gamma transport
Topic: Dose rate vs. Dose (Geant4-Serpent2)
Replies: 4
Views: 484

Re: Dose rate vs. Dose (Geant4-Serpent2)

Thank you so much Ana for your reply. And so sorry for the delayed response. It is just a normalization error made in my post-treatment (sorry). We report an excellent agreement between Geant-4 and Serpent-2 in a multi-slab 3D reactor benchmark (MOX/UOX/Gd) and in medical physics (Rogers and Mohan m...
by Ahmed_Naceur
Sat Jan 30, 2021 10:29 pm
Forum: Gamma transport
Topic: Dose rate vs. Dose (Geant4-Serpent2)
Replies: 4
Views: 484

Dose rate vs. Dose (Geant4-Serpent2)

Dear Community, I have a very simple problem, an isotropic source (slab source) in front of a multi-slab geometry (cuboid here), and I compared Serpent's "x" dose profile to that of Geant-4. With dr -200 , Serpent gives, after normalization by the volume of the detector, and converting hour to secon...
by Ahmed_Naceur
Sat Jan 30, 2021 9:50 pm
Forum: Gamma transport
Topic: Options for photon transport
Replies: 3
Views: 6287

Re: Options for photon transport

Thank you Ana for your response. Will keep trying..
by Ahmed_Naceur
Sat Jan 30, 2021 9:48 pm
Forum: Gamma transport
Topic: Differences in dose calculation
Replies: 3
Views: 589

Re: Differences in dose calculation

Dear Ana, Thank you so much for your response. I tested what you advised me to do. Please, find attached to this message, 1. For 18MeV and 1MeV, the dose rate profile based on dr -200 [ METHOD 1 ], dr -26 [ METHOD 2 ], dr NIST -12 (What you advised) and dr -248 (for liquid water), dr -208 (bone cort...
by Ahmed_Naceur
Thu Dec 03, 2020 5:44 am
Forum: Gamma transport
Topic: Differences in dose calculation
Replies: 3
Views: 589

Differences in dose calculation

Dear Community, I am currently running a photon transport simulation on a slab geometry (water [1-4] cm/bone [4-6] cm/lung [6-13] cm/water [13-31] cm). Here, gamma source is a linear source. I tried three dose calculation methods with Serpent. The first using dr -200 (Serpent's dose rate) , the seco...
by Ahmed_Naceur
Thu Dec 03, 2020 1:12 am
Forum: Gamma transport
Topic: Options for photon transport
Replies: 3
Views: 6287

Re: Options for photon transport

Dear Toni and Community, As it was possible to study the TTB effect with " set ttb 0 ", is there any equivalent option to study the annihilation effect "like set ann 0 " ? If not, can you advise me how to test it manually ? I would like to ask the same question on the relaxation effect, i.e. an opti...