Siemens Aktiengesellschaft

Gerhard Brandner

Peter Hoebel

Tanja Wegerer

Helmut Reichenberger

Wolfgang Blum

A method for manufacturing a stimulable luminescent storage screen, of the type used to store a latent x-ray image, with the image being read-out by excitation of the screen with radiation of a first wavelength, thereby causing the screen to emit radiation of a second wavelength, includes the step of using a transparent single crystal as the initial material for making the screen, and working the transparent single crystal to form the screen. Working of the transparent single crystal can be in the form of pressing the crystal, heating the crystal, or both.

Method for manufacturing a stimulable luminescent storage screen

A luminescent storage screen having a stimulable phosphor for the latent storage of x-ray images, of the type wherein the latent image is read-out by excitation of the stimulable phosphor with a read-out beam having a first wavelength, causing radiation of a second wavelength to be emitted, which is acquired by a detector, the storage screen having lateral faces of disposed at an angle with respect to one of the end faces of the storage screen which is less than 90.degree.. The end faces are transparent so that radiation of the second wavelength can exit the screen from the end faces.

Luminescent storage screen having a stimulable phosphor

A luminescent storage screen, in which a latent x-ray image is stored, is read-out using stimulating radiation at a first wavelength, which causes light at a second wavelength to be emitted by the screen. The stimulable phosphor is transparent in the range of the two wavelengths. The stimulable phosphor is a doped alkali halide, such as a thallium-doped rubidium-bromide.

Method for manufacturing a luminescent storage screen having a phophor

An x-ray radiator has an elongated cathode for emitting an electron beam having an elongated cross section, the electrons of the electron beam being accelerated onto an anode for generating x-radiation. The cathode is formed by a geometrical member completely filled with electron-emitting material, and the material of the cathode contains at least one element from the group of rare earths and at least one element from the group of precious metals or boron.

X-ray arrangement comprising an X-ray radiator having an elongated

A stimulable phosphor luminescent storage screen of the type used for the latent storage of X-ray images, wherein read-out of the stored image ensues by exciting the phosphor with radiation of a first wavelength thereby causing radiation of a second wavelength to be emitted by the phosphor, has at least one optical surface coat layer for reducing reflections. The stimulable phosphor is transparent.

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Zirndorf, Germany

Gerhard Brandner