Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno

Nucletron B.v.

Godefridus Hendricus Maria Gubbels

Rinse Alle Terpstra

Joost Petrus Gerardus Maria Van Eijk

Johannes Coenradus Theodorus Van Der Heijde

Harrie Gorter

Hendrik Willem Brinkman

Johann Kindlein

Frank Simonis

Johannes Petrus Zijp

Evert Hendrik Agterhuis

A miniature X-ray source device for effecting radiation therapy at least comprising a vacuum tube containing a cathode and an anode spaced apart at some distance from each other; emitting means for emitting free electrons from the cathode; electric field generating means for applying during use a high-voltage electric field between the cathode and the anode for accelerating the emitted free electrons towards the anode, as well as an exit window for X-ray radiation being generating at the anode. The present invention provides an improved miniature X-ray source device, that can also properly be used in treating skin cancer and which is easy to handle. The anode is provided with a flat X-ray emitting surface. In particular, the cathode exhibits a concave shaped surface having a center part surrounded by an upright circumferential edge, wherein the center part of the concave shaped surface is provided with an electron emitting material.

Miniature X-ray source device for effecting radiation therapy

Device for generating X-rays, comprising:

Device for generating X-rays and use of such a device

The exchanger is made from a number of tubes sealingly connected to a pipe plate which is further connected to an enclosure. The pipe plate is realized by positioning enclosure and tubes in a mould and pouring a ceramic slurry which is subsequently sintered.

Method for producing an exchanger and exchanger

Method for producing a high temperature resistant exchanger. The exchanger is made from a number of tubes sealingly connected to a pipe plate which is further connected to an enclosure. The pipe plate is realised by positioning enclosure and tubes in a mould and pouring a ceramic slurry which is subsequently sintered.

Method for producing an exchanger

Growing community of inventors

Helmond, Netherlands

Godefridus Hendricus Maria Gubbels