1 / 3

Exercise 7: Importance biasing

Exercise 7: Importance biasing. Beginners FLUKA Course. Exercise 7: Importance biasing. Concrete: (mass fraction) Hydrogen 0.01 Aluminum 0.034 Carbon 0.001 Silicon 0.337 Oxygen 0.529 Potassium 0.013 Sodium 0.016 Calcium 0.044

ilyssa
Download Presentation

Exercise 7: Importance biasing

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Exercise 7: Importance biasing Beginners FLUKA Course

  2. Exercise 7: Importance biasing Concrete:(mass fraction) Hydrogen 0.01 Aluminum 0.034 Carbon 0.001 Silicon 0.337 Oxygen 0.529 Potassium 0.013 Sodium 0.016 Calcium 0.044 Magnesium 0.002 Iron 0.014 Density:2.42g/cm3 • Create a new directory ex7 and download the ex5.inp, renamed it to ex7.inp • Step 1: • change targets back to H2O/Al/Pb • add a 240 cm thick concrete shield around the target • calculate neutron fluence inside the shield • in region-independent mesh (USRBIN) create a contour plot with FLAIR Step 2: • split lateral shield into 6 layers of 40 cm thickness each and assign region importance factor to each layer such that the importance increases between adjacent layers by a factor of two • calculate again the neutron fluence inside the shield, create contour plot and compare to case without region importance biasing • Tip: you can create a #define BIAS variable and enclose the BIASING cards with #if BIAS…#endif cards. Then create a second run in the Run Frame with the BIAS disabled 250 Concrete shield 240 10 Pb Al -60 -50 50 60 H2O

  3. Exercise 7 – Importance biasing Result

More Related