Forced collisions variance reduction technique - #407

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nglaser3 wants to merge 22 commits into

mcdc-project:devfrom

nglaser3:forced-collisions

Commits on Apr 17, 2026

create forced collision object
nglaser3
committed
c4598b1
add notion for forced_collision_distance
nglaser3
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2b924d3
first pass at implementation of forced-collisions
nglaser3
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9367217
Merge branch 'readd-ww' into forced-collisions
nglaser3
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4255ec6
rely on roulette to kill particles instead of tracking only surface crossings
nglaser3
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f2e7817
error throwing on the object for forced collisions
nglaser3
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05cc1b1
attempt at forced collision cell test
nglaser3
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36ae825

Commits on Apr 18, 2026

set active to be true when called...
nglaser3
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4517cf9
add copy particle runtime state to particle module
nglaser3
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83dd219
update forced collision to generate collided and transmitted properly
nglaser3
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d92ce79
factor out tracklength score procedure in simulation, score transmitted particle
nglaser3
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d4cc65f
add regression test for forced collisions
nglaser3
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3190953
remove unit test for in cell check for forced collisions
nglaser3
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388d564
add docstrings to all added methods
nglaser3
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f64c85d
back in black
nglaser3
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41ff45a
add python api line for forced collisions
nglaser3
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4c4ccdc
fix various typos and bugs causing tests to fail
nglaser3
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575f1e2

Commits on Apr 30, 2026