Cassette for x-ray storage phosphor plate

A cassette for an x-ray storage phosphor plate, the cassette comprising:

• a first cassette portion and a second cassette portion,
• the first cassette portion having a rectangular panel forming the top of the cassette, the panel having two opposite sides and two opposite ends, three edge walls located along the two opposite sides and one end of the panel, the edge walls each having a groove for receiving the two sides and one end of the panel, and the edge walls each having a projection beneath the panel for engaging the second cassette portion,
• the second cassette portion having a second rigid rectangular panel forming the bottom of the cassette, the second panel having a groove in side walls of the panel located to receive the projection on the edge walls of the first cassette portion so that the second cassette portion can slide into and out of the first cassette portion to close and open the cassette, an x-ray storage phosphor plate permanently secured to the upper surface of the second panel so that the plate is between the panels when the cassette portions are closed, the second cassette portion having an edge wall attached to the second panel and extending between the two edge walls on the opposite side walls of the first panel when the cassette portions are closed, and
• latching means carried by the first and second cassette portions for latching the cassette portions together when the cassette is closed.