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Abstract

GRAPHITE IS AN IMPORTANT MATERIAL FOR WALL COMPONENTS IN FUSION MACHINES. THE REACTION OF GRAPHITE WITH OXYGEN, ONE OF THE MAIN IMPURITY COMPONENTS IN TOKAMAK PLASMA, AND THE RESULTANT OF FORMATION OF CARBON MONOXIDE, IS INVESTIGATED. MEASUREMENTS OF SPUTTERING AND REACTION PRODUCTS SHOW THE REACTION TO BE INDEPENDANT OF GRAPHITE TEMPERATURE OVER A WIDE RANGE OF IRRADIATION ENERGIES FROM 150 EV TO 20 KEV. PRACTICALLY ALL INCOMING OXYGEN IONS COMBINE WITH A CARBON ATOM TO FORM A CO MOLECULE WHICH LEAVES THE TARGET. THE REACTION PRODUCTS NEEDED CAREFUL REFERENCE MEASUREMENTS TO CANCEL SUPERPOSED REACTIONS OF THE RESIDUAL GAS WITH THE HOT GRAPHITE TARGET.

Additional information

Authors: HECHTL E PHYSIK DEPARTMENT TECHNISCHE UNIVERSITAET MUENCHEN BOHDANSKY J MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, MUENCHEN, D , PHYSIK DEPARTMENT TECHNISCHE UNIVERSITAET MUENCHEN;MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, MUENCHEN, D
Bibliographic Reference: JOURNAL OF NUCLEAR MATERIALS, VOL. 154, PP 201-203, 1988
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