4 ms·
> Radiation (since you were basically looking into a beta-radiation emitter). This is completely wrong while technically correct. Sure, electron guns throw ele
by formerly_proven 5y ago
> Radiation (since you were basically looking into a beta-radiation emitter).
This is completely wrong while technically correct. Sure, electron guns throw electrons around. So you are looking at a beta-emitter. But those electrons can't leave the tube. Even if they could - CRTs have, depending on size and application, an acceleration voltage of somewhere between 10 and 30 kV - this translates to a range of a few centimeters in air at best.
CRTs do produce radiation, namely X-rays by way of bremsstrahlung due to the electrons getting, well, bremsed at the screen. This is part of the reason why CRTs are heavy (aside from faceplate structural integrity); leaded glass is heavy.
> Flashing
Visible flicker is obviously undesirable, but low duty cycle displays are preferable for moving images.
- GekkePrutser 5y ago> CRTs do produce radiation, namely X-rays by way of bremsstrahlung due to the electrons getting, well, bremsed at the screen. This is part of the reason why CRTs are heavy (aside from faceplate structural integrity); leaded glass is heavy. True, I didn't want to get into that level of complexity. The electrons are also quite easy to capture with conductive glass. But the bremsstrahlung can be significant.