Hallo everyone, I have a question about X-Ray shielding in a scanning electron microscope and I hope you can help me! The topic is that when electrons hit the specimen, characteristic radiation up to 10keV is generated. This radiation is blocked/decelerated my the surrounding tower and chamber that are shielded with mu-metal (how thick is this coating). If I would just use pure Aluminium the X-Ray shielding wouldn't be enough. So far, is this correct? Because Aluminium has a half-value thickness of about 112mm for 10keV x-radiation. I am a bit concerned that some new-built parts of our SEM-chamber-cover aren't enough to shield the generated x-radiation. They are made out of alluminium with a thin mu-metal coating. It may be enough for magnetic field but I don't know if it is enough for the x-rays.. Can anyone tell me if my concerns are legitimate or is the X-radiation easily shielded with such layers? Thank you for your help!