Forschungszentrum Julich Gmbh

Kernforschungsanlage Julich Gesellschaft MIT Beschrankter Haftung

UniversitÄt Zu Koln

Eurisis Measures

Universilata

Eurisys Mesures

Hans Kammerling

Rainer M Lieder

Walter Renftle

Jurgen Eberth

Marc Berst

Herbert M Jager

Siegfried Forster

Peter Quell

Hubert Jaegers

A process for producing an encapsulated detector operating in an ultra high vacuum (UHV) for gamma (.gamma.) spectroscopy, wherein a detector is placed into a detector chamber portion of a detector containment pot and a lid is placed into the containment pot and both are joined by electron beam welding under vacuum at their top in such a way, that the detector is not exposed to excessive heat and that the vapors generated during welding are condensed before they can reach the detector chamber, whereby a detector capsule capable of maintaining an ultra high vacuum can be produced.

Process of producing an encapsulated detector

In a capsule for a detector operating in an ultra high vacuum suitable as a gamma radiation spectrometer, there is provided a detector chamber in which the detector is mounted and a getter chamber in which a getter element is mounted and the getter chamber is separated from the detector chamber by a thermal protection structure to prevent heating of the detector when the getter element is heated for conditioning. The getter element serves to maintain an ultra high vacuum in the detector chamber over a long period of operation.

Capsule for a detector operating in an ultra-high vacuum

A process and an arrangement for the formation of an ignitable mixture from iquid fuel and combustion air, wherein preheated combustion air is conducted with a flow chamber along a surface which is moistened with fuel for take-up of fuel. In the process and arrangement, combustion air is conveyed into the flow chamber in the flow direction of the fuel which streams off the surface moistened by the fuel under the effect of gravity. Achieved hereby is an intensive contacting between the combustion air and the fuel. The fuel is dosed in excess so as to constantly afford a sufficient quantity of fuel for vaporization. During the through flow of the combustion air, there is formed, in the contact with the fuel, a saturated fuel-air mixture in conformance with the temperature of the preheated combustion air and the temperature of the fuel. Concurrently, care is taken that the trickling film of the fuel which is formed by gravitation as well as the drag effect exerted by the combustion air passing through the flow chamber can freely exit from the flow chamber at the foot of the surface moistened by fuel, to the extent in which the fuel is not taken up through vaporation by the combustion air in the flow chamber.

Process and arrangement for the formation of an ignitable mixture from

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Eschweiler, Germany

Hans Kammerling