High Energy Electrons in Radiation Therapy

Radiotherapy using fast electrons, whether alone or in combination with high-voltage, has met with increasing interest in the last few years. This book provides a useful account of the present state of knowledge and critically discusses where an improvement of results is certain or prob able - in contrast to results with radiotherapy using photons alone. The work also considers additional improvements which might be expected to accrue from past experience~ and particular attention is paid to the nature and possible dangers of electron therapy. Bern, August 1980 A. Zuppinger Contents Opening Address A. Zuppinger . . . . . . . . . . . . . . . . . . . . . . ........... . . . . . . . . . . Physical Section Introduction J .L. Minchole . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Computer Treatment Planning of Lung Radiation by Means of High Energy Electrons G. Poretti, F. Ionesco-Farca, and P. Veraguth. . . . . . . . . . . . . . . . . . . . . . 6 Electron Beam Quality Parameters and Absorbed Dose Distributions from Therapy Accelerators A. Brahme and H. Svensson. . . . . . . . . . . . . . . . . . . . . . . . . . . 12 . . . . . . . Surface Dose in Electron Beams and Association with High Energy X-Ray Beams J.C. Ro senwald. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 . . . . . . . . . . Electronic Wedge Filter for the Asklepitron 45 R. Hilnig, A.v.Arx, and A. Scholz. . . . . . . . . . . . . . . . . . . . . . . . 25 . . . . . . Magnetic Field Modification of Electron Beam Dose Distributions in Inhomogeneous Media B.R. Paliwal and A.L. Wiley, Jr. . . . . . . . . . . . . . . . . . . . . . . . . 28 . . . . . . . Conclusions of the Physical Section J.C. Rosenwald. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 . . . . . . . . . . Clinical Section Clinical Radiobiology A. Zuppinger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 . . . . . . . . . . Indications for Electron Beam Therapy J.P.Bataini ............................................ 37 Contents VIII The Electron Beam Therapy for Malignant Tumors: Indications and Limitations E. Scherer and M. Bamberg. . . . . . . . . . . . . . . . . . . . . . . . . . . 39 . . . . . . . Electron Therapy for Cutaneous Epitheliomas H. Pourquier. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 . . . . . . . . . .