CODEPOSITION OF HYDROGEN WITH BERYLLIUM, CARBON AND TUNGSTEN

The trapping of energetic deuterium codeposited with beryllium, carbon and tungsten has been measured on a silicon collector probe at room t emperature. The subsequent release of the trapped deuterium at elevate d temperatures was determined by thermal desorption spectroscopy. At r oom temperature, deuterium codeposits both with carbon and BeO with a ration of 0.41 D-atoms/C-atom and 0.38 D-atoms/BeO, respectively. No c odeposition of deuterium with tungsten is observed. The thermal releas e of codeposited hydrogen from BeO begins at 400 K. All hydrogen is re leased at temperatures above 800 K.