Phosphor screens

For particle detection, electron microscopy, X-Ray and UV Imaging. The screen structure is shown in the image below. Not all layers shown must be combined.

GIDS GmbH offers phosphor screens in P43, P22, P46 and P47 that allow the two-dimensional, visual detection of electrons, protons, heavy ions, x-rays and UV-light. Our standard phosphor screens perfectly match with our MCPs with active diameter of 18, 25, 40 and 75 mm and those from other MCP suppliers. Custom specific types are developed and produced on request.


The phosphor coating is prepared by brushing process. The phosphor grains are agitated through a sieve or muslin gauze upon the plate which has been coated with some kind of binder. The phosphor is then brushed into the binder layer. The result in an adhesive bonding of the phosphor grains with high compressed density. Our brushing process leads to a very homogeneous layer structure.


The screens are stable under ultrahigh vacuum (UHV) conditions and can resist temperatures up to +200°C without problems. This stability is needed for the outgassing of a vacuum system to reach ultra high vacuum levels.