A new method of mounting stripper foils
Résumé. 2014 Une méthode est proposée pour le montage des feuilles d’épluchage de charge utilisant une grille de tungstène à haute transmission. Cela permet de subdiviser la feuille en un grand nombre de feuilles indépendantes, le mauvais fonctionnement de l’une d’elles n’affecte pas les autres. Il est donc possible d’utiliser une grande feuille que l’on déplace dans le faisceau afin de prolonger sa durée d’utili- sation. Des résultats sont décrits ainsi qu’un mécanisme prototype pour l’exploitation de ce concept. Abstract. 2014 A method of mounting stripper foils is proposed using a high transmission tungsten grid. This enables the foil to be subdivided into a large number of independent foils, failure of any one of which does not effect the rest. It is thus possible to use a large foil moved across the beam to obtain a very long life. The results are shown and a prototype mechanism to exploit this concept is described.
USE OF CARBON FOILS FOR HEAVY-ION STRIPPERS.
Abstract The lifetime of carbon foils when bombarded by high-density heavy-ion beams is increased if the foil is kept at a high temperature.
Variations common to the interplanetary magnetic field, the zonal atmospheric circulation and the earth's rotation
A study of the cyclic fluctuations in the earth's rotation, the geomagnetic field, the global atmospheric circulation and solar activity reveals the existence of 50-day and 120-day oscillations common to all. Our results, as well as the results obtained by radiometric measurements from the satellites Nimbus-7 and the Solar Maximum Mission (Wilson 1982; Pap 1985), suggest that their origin lies in the physical processes in the sun. The mechanism remains unexplained but from this work it follows that the role of the interplanetary magnetic field could very well be important.