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000010649 0247_ $$2DOI$$a10.1016/j.jnucmat.2010.12.038
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000010649 084__ $$2WoS$$aMaterials Science, Multidisciplinary
000010649 084__ $$2WoS$$aNuclear Science & Technology
000010649 084__ $$2WoS$$aMining & Mineral Processing
000010649 1001_ $$0P:(DE-HGF)0$$aStamp, M.F.$$b0
000010649 245__ $$aMeasurements of beryllium sputtering yields at JET
000010649 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2011
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000010649 440_0 $$03620$$aJournal of Nuclear Materials$$v415$$x0022-3115$$y1
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000010649 520__ $$aThe lifetime of the beryllium first wall in ITER will depend on erosion and redeposition processes. The physical sputtering yields for beryllium (both deuterium on beryllium (Be) and Be on Be) are of crucial importance since they drive the erosion process. Literature values of experimental sputtering yields show an order of magnitude variation so predictive modelling of ITER wall lifetimes has large uncertainty. We have reviewed the old beryllium yield experiments on JET and used current beryllium atomic data to produce revised beryllium sputtering yields. These experimental measurements have been compared with a simple physical sputtering model based on TRIM.SP beryllium yield data. Fair agreement is seen for beryllium yields from a clean beryllium limiter. However the yield on a beryllium divertor tile (with C/Be codeposits) shows poor agreement at low electron temperatures indicating that the effect of the higher sputtering threshold for beryllium carbide is important. (C) 2011 EURATOM. Published by Elsevier B.V. All rights reserved.
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000010649 7001_ $$0P:(DE-HGF)0$$aKrieger, K.$$b1
000010649 7001_ $$0P:(DE-Juel1)VDB3199$$aBrezinsek, S.$$b2$$uFZJ
000010649 773__ $$0PERI:(DE-600)2001279-2$$a10.1016/j.jnucmat.2010.12.038$$gVol. 415, p. S170 - S173$$pS170 - S173$$q415<S170 - S173$$tJournal of nuclear materials$$v415$$x0022-3115$$y2011
000010649 8567_ $$uhttp://dx.doi.org/10.1016/j.jnucmat.2010.12.038
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