Self-supporting or supported phosphor screen or panel

A method for preparing a screen comprising a self-supporting or supported phosphor layer with phosphor particles (PP) dispersed in a polymeric binder (B) comprising the steps of:

• (i) dispersing said phosphor particles and said binder in a solvent (S),
• (ii) applying said dispersion on a support to form a panel or screen and
• (iii) drying said panel or screen, characterised in that said phosphor particles (PP) are present in said binder (B) in a volume ratio PP/B of at least 80/20 and said polymeric binder comprises at least one polymer (P) having a T.sub.g .ltoreq.0.degree. C., said polymer (P) has an average molecular weight (MG.sub.avg) between 5000 and 10.sup.7 and is soluble in ethylacetate for ar least 5% by weight (% wt/wt) and that a self-supporting layer of said polymer P comprising 82% by volume of phosphor particles and having a thickness so has to comprise 100 mg of phosphor particles per cm.sup.2, has an elongation at break of at least 1%.