Ulysses HISCALE Pages
Document Source: James Tappin and Dennis Haggerty
4.12.1 Numerical Simulation of HISCALE Response to Galactic Cosmic Rays
This simulation models isotropic flux through a cylindrical detector. The dimensions of the detector are: radius = 5652 mm, thickness = 200 mm. The simulation determines the distance traveled in the detector for each randomly entering particle. For clarity the results have been placed in three separate categories. They are:
Case 1 - Top entering particles leaving through the detector side.
Case 2 - Top entering particles leaving through the bottom.
Case 3 - Side entering particles leaving through a side.
The energy deposition due to these particles can be determined by the equation:
Energy = 0.466 keV/Micron * Penetration distance
The slope of the graph is approximately 3.
Figure 4.84 Cosmic ray case 2 (top) and case 3 (side)
Figure 4.85 Cosmic ray case 1 (oblique) and total
Figure 4.86 Calculations of penetration geometry, part I
L=T tan g
|A=L cos q
B=L sin q
A=T tan g cos q
B=T tan g sin q
|If r' > r
Else r' <= r case 2
Figure 4.87 Calculations of penetration geometry, part II
CASE 1: Projection through side
CASE 2: Projection through bottom
Next: 4.13 Summary of HISCALE 4-pi Viewing and Sectoring Relationships
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Updated 4/23/09, T. Hunt-Ward
Figure reconstruction by T. Manweiler.