[en] Using a meticulous setup procedure in which repeated portal films were taken before each treatment until satisfactory portal verifications were obtained, a high degree of precision in patient positioning was achieved. A fluctuation from treatment to treatment, over 11 treatments, of less than +-0.10 cm (S.D.) for anatomical points inside the treatment field was obtained. This, however, only applies to specific anatomical points selected for this positioning procedure and does not apply to all points within the portal. We have generalized this procedure and have suggested a means by which any target volume can be consistently positioned which may approach this degree of precision. (orig.)

No abstract available

[en] Attention is paid to the role of numerical data when predicting the development of radiation technology

[en] This invention concerns a quick process for defining high resolution sub-miniature geometrical figures in a radiation sensitive layer, in which a network of radiation beams is made to form. This beam network is so directed as to strike the surface of the layer, so as to appear on it as a network of radiation traces distant from each other. These traces are then displaced together so as to make a screen sweep of the surface

[en] This patent application describes a device for localized diathermy which also includes the potential for simultaneous localized radiation therapy. The device includes tubular element of electrically conductive material in the form of a woven braid. An electrical insulator is positioned adjacent and abutting the element such that the diathermy treatment associated with electrical current passing through the element is localized to that portion of the element which is uninsulated. Preferably at least one radioactive isotope is positioned within the uninsulated portion of the element such that both the diathermy and the radiation are simultaneously localized. (author)

No abstract available

[en] Published in summary form only

No abstract available

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No abstract available