| 摘要 |
PURPOSE:To enable the formation of a number of dose detecting sections along with varied light fields, by covering an electromagnetic wave acceptor layer provided on the surface of a support substrate with a phosphor layer to eliminate interference between fluorescences. CONSTITUTION:For example, a slurry comprising 80pts.wt. of CaWO4 phosphor with the average particle size of 3mum and 20pts.wt. of nitrocellulose is applied on a polyethylene terephthalate sheet 400mm long and wide and 25mum thick at a coat density of 15mg/cm<2>. Then, an a(amorphous)-Si film with the thickness of 1mum is formed at two points of an identical sheet by evaporation and an aluminum lead is extended therefrom. Then, these sheets adhere to each other through a double-side adhesive tape with the polyethylene terephthalate sheet as base material and fixed on an acrylic resin plate with the thickness of 2.5mm. Then, the work is cut by 354mm square and covered entirely with a carbon- kneaded polyester film 75mum thick for shielding light to complete a head.
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