- #1
Alfreds9
- 29
- 1
Hello,
I'd like to know which book or papers I'd read to understand, possibly without too rigorous mathematics knowledge, how do photons like X-rays or gamma ones reflect off surfaces and attenuate through solids or generally speaking, facts about how do they interact with the real world.
So far I've found this nice calculator which comes really handy to understand which percentage of X-rays at a certain keV will pass thru (http://web-docs.gsi.de/~stoe_exp/web_programs/x_ray_absorption/) and probably answers all my needs about attenuation, however I would also like to know how good/bad do they reflect off metallic surfaces in a lab setting, so that apart common sense I could guess what are the chances of X-rays entering from a slightly opened shielded door (left in that way by hasty colleagues) performing a radiograph in the next room onto a flat table.
Do they infiltrate into gaps like fluids or more likely bounce in straight lines like visible light?
Considering the same generator energy, would increasing mA (photon flux) for a certain time also increase image noise, or would it be equal to a lower photon flux in a longer time (so that mA * time yield the same result in both cases)?
Thank you
Allison
I'd like to know which book or papers I'd read to understand, possibly without too rigorous mathematics knowledge, how do photons like X-rays or gamma ones reflect off surfaces and attenuate through solids or generally speaking, facts about how do they interact with the real world.
So far I've found this nice calculator which comes really handy to understand which percentage of X-rays at a certain keV will pass thru (http://web-docs.gsi.de/~stoe_exp/web_programs/x_ray_absorption/) and probably answers all my needs about attenuation, however I would also like to know how good/bad do they reflect off metallic surfaces in a lab setting, so that apart common sense I could guess what are the chances of X-rays entering from a slightly opened shielded door (left in that way by hasty colleagues) performing a radiograph in the next room onto a flat table.
Do they infiltrate into gaps like fluids or more likely bounce in straight lines like visible light?
Considering the same generator energy, would increasing mA (photon flux) for a certain time also increase image noise, or would it be equal to a lower photon flux in a longer time (so that mA * time yield the same result in both cases)?
Thank you
Allison