[Gate-users] Meaning of the positron annihilation distance?

[Park MinJae]

Dear gaters,

When I simulated positron range of F-18 using a very small F-18 in a large
sphere filled with water, I got a attached graph...

However, I wonder that the positron annihilation distance is positron range.

I can guess that positron annihilation distance is tracked distance or
tangential distance.

Thanks in advance
Cordially yours,
MJ

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