Aea Technology Qsa Gmbh

Aea Technology Osa Gmbh

Helmut Menuhr

Eberhard Fritz

Horst Petersen

Mark Shilton

Dave Hunt

The invention relates to a process for producing a radiation flood source by printing a radioactive solution, and a radioactive printing solution used in this method. The present invention also relates to a flood source for quality testing and assurance of radiation detecting devices obtained by said process.

Radiation flood source and method for producing the same

A flexible, radioactive radiation source in the form of a wire or other elongated shape, comprising a matrix of a ductile and/or plastic binder material and a radioactive and/or activatable material. The elastic binder material is preferably a metal, a metal alloy, or a radiation resistant plastic material, or a mixture of these, and the radioactive material, or activatable material once activated, is a &bgr;-emitter, a &ggr;-emitter, or an x-ray emitter. The source may be contained, for example, within a tube, capsule, or coating. The flexible, radioactive radiation source may be used for intravascular radiation treatment of cancer, tumor, non-malignant cell growth, scar tissue, or to prevent restenosis.

Radiation source for endovascular radiation treatment in form of a wire

A radioactive or activatable seed for use in brachytherapy, and a method for producing the seed, the seed comprising a closed and self-supported casing consisting of (a) a radioactive or activatable metallic material selected from the group consisting of a metal, an alloy and a metal composite or mixtures thereof, optionally in combination with (b) a non-radioactive, non-activatable metallic material; wherein (a) comprises a radioactive nuclide selected from the group consisting of Pd-103, Tm-170, Sr-90, Y-90, Yb-169, P-32, Ge-71, Se-75, Cl-36, Ta-182, Tl-204, Re-188, W-188, Ce-144, Pr-144, Sn-123, Ru-106, Rh-106 and mixtures thereof, and/or an activatable precursor nuclide thereof selected from the group consisting of Pd-102, Rh-103, Tm-169, Y-89, Yb-168, P-31, Ge-70, Se-74, Cl-35, Ta-181, Tl-203, W-186, Sn-122 and mixtures thereof, excluding metallic Pd with natural abundance of Pd-102.

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Braunschweig, Germany

Helmut Menuhr