PREX/CREX Apr 11, 2018 10:00am

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  1. FLUKA summary: Victoria slides
    • VO: work mainly for design around collimator region.
    • VO: simplified geometry but all materials needed were included and this was deemed sufficient for our purpose
    • VO: we took the worst case scenario for the simulation (no poly)
    • VO: we never get to larger than 1rem to need fencing (even if we multiply by a factor of 2)
    • VO: will upload data and tech note to docDB and put the code on GitHub.
    • KP: how about the off-axis doses? VO: slide 15 shows that result we have about 50 mrem after one week and downstream of the septum we have a factor of 2 less. The on-contact for the DS flange seems a larger difference.
    • KP: CREX production running is 35 vs 25 that you ran. VO: I don’t expect a large difference, but will rerun
    • BM: we need to plan carefully the target region with these dose. KP: agreed. we need to be very careful about the design
  2. Dump shielding: Ciprian slides
    • CG: our shielding may be useful for APEX so Bogdan is trying to get it done so that it can be installed before APEX.
    • KP: the design on this is in a list that is being worked on so it’s very useful to have Bogdan looking at this.


Dave G, Ciprian G, Adam, Bob M, Caryn, Chandan G, David A, Devi A, Eric K, Jay B, Paul S, Ryan R, Tao Y, Victoria O, Seamus R, KK, Amali P, Kent P, Cameron C, Jinlong Z, Tyler K,


Sanghwa P,