Journal
PHYSICA SCRIPTA
Volume T138, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0031-8949/2009/T138/014053
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Deuterium retention in different tungsten (W) grades was investigated for various incident ion energies ranging from 3 to 200 eV per deuterium atom and fluences ranging from 1 x 10(23) m(-2) to 2 x 10(25) m(-2). Irradiation temperatures were 320 and 500 K. The retained amount was determined by ion beam analysis and thermal desorption spectroscopy. For irradiation at 320 K, deuterium retention in plasma-sprayed tungsten (PSW) is higher compared to polycrystalline W for all investigated energies. For irradiation at 500 K, the deuterium retention for polycrystalline W increases strongly with fluence in contrast to PSW. The highest deuterium inventory was found for ITER grade W irradiated with 200 eV per deuterium at 500 K.
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