Difference between revisions of "Shielding hut for GEM electronics"
From Hall A Wiki
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* First, we wanted to compare the gamma yields with Pavel Degtiarenko's to cross-check the overall normalization. | * First, we wanted to compare the gamma yields with Pavel Degtiarenko's to cross-check the overall normalization. | ||
| − | ** | + | ** These are the latest plots from Pavel's [https://userweb.jlab.org/~dasuni/GEM_Electronic_hut/st_e11000_th40cm_a1%281%29.pdf]. These simulations include exact GEp target configuration (40 cm Liquid H2 + Al walls). |
| − | ** And this is what we got by running our simulations [https://userweb.jlab.org/~dasuni/GEM_Electronic_hut/Yields_Compared_to_Pavels_NewSim_with_vacuum.pdf]. Each slide shows the results from g4sbs (on top - when the hall | + | ** And this is what we got by running our simulations [https://userweb.jlab.org/~dasuni/GEM_Electronic_hut/Yields_Compared_to_Pavels_NewSim_with_vacuum.pdf]. Each slide shows the results from g4sbs (on top - when the hall is filled with Air (left) and Vacuum (right) and on the bottom - results from Pavel's when the hall is in vacuum.) |
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** To do that, we defined a volume inside the hut and made it a sensitive detector. | ** To do that, we defined a volume inside the hut and made it a sensitive detector. | ||
** And filled it with air (and water), and calculate the dose based on energy deposited on that volume. | ** And filled it with air (and water), and calculate the dose based on energy deposited on that volume. | ||
| + | ** The total dose = <math>#sum</math> | ||
Revision as of 11:20, 8 September 2016
The main purpose of this study to determine the neutron-induced damage on electronics at the shielding hut for GEp.
Main drawings for the shielding hut are,
Few extra details from Alan Gavalya,
- The green boxes are cast steel 52" x 52" x 26".
- The distance between two green boxes are 96".
- There is a steel plates between two green boxes (bottom-2.5" thick & front-7.5" thick). The bottom plate allows for the front plates to match the height of the green blocks for stacking the top plates.
- And there is a steel plate (120" x 5" x 43") on the top (blue).
The drawings for the magnet support frame (by Alan) -[4]
The supporting frame and the shielding hut were added to the g4sbs/src/G4SBSHArmBuilder.cc - [5], See under MakeHCAL.
And here the shielding hut and supporting frame appear on the g4sbs at the moment - [6]
- First, we wanted to compare the gamma yields with Pavel Degtiarenko's to cross-check the overall normalization.
- These are the latest plots from Pavel's [7]. These simulations include exact GEp target configuration (40 cm Liquid H2 + Al walls).
- And this is what we got by running our simulations [8]. Each slide shows the results from g4sbs (on top - when the hall is filled with Air (left) and Vacuum (right) and on the bottom - results from Pavel's when the hall is in vacuum.)
- Next thing on the list is to calculate the energy deposited/dose/dose rate inside the shielding hut.
- To do that, we defined a volume inside the hut and made it a sensitive detector.
- And filled it with air (and water), and calculate the dose based on energy deposited on that volume.
- The total dose = <math>#sum</math>
![[1]](https://userweb.jlab.org/~dasuni/GEM_Electronic_hut/12GEp_Elevation.png){kind=link}
![[2]](https://userweb.jlab.org/~dasuni/GEM_Electronic_hut/12GEp_Iso.png){kind=link}
![[3]](https://userweb.jlab.org/~dasuni/GEM_Electronic_hut/12GEp_Plan.png){kind=link}