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The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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Lightbridge announces first U-Zr fuel rod samples extruded at INL
Lightbridge Corporation announced today that it has reached “a critical milestone” in the development of its extruded solid fuel technology. Coupon samples using an alloy of zirconium and depleted uranium—not the high-assay low-enriched uranium (HALEU) that Lightbridge plans to use to manufacture its fuel for the commercial market—were extruded at Idaho National Laboratory’s Materials and Fuels Complex.
E. Westerhof, J. A. Hoekzema, G. M. D. Hogeweij, R. J. E. Jaspers, F. C. Schüller, C. J. Barth, H. Bindslev, W. A. Bongers, A. J. H. Donné, P. Dumortier, A. F. van der Grift, D. Kalupin, H. R. Koslowski, A. Krämer-Flecken, O. G. Kruijt, N. J. Lopes Cardozo, H. J. van der Meiden, A. Merkulov, A. Messiaen, J. W. Oosterbeek, P. R. Prins, J. Scholten, V. S. Udintsev, B. Unterberg, M. Vervier, G. van Wassenhove
Fusion Science and Technology | Volume 47 | Number 2 | February 2005 | Pages 108-118
Technical Paper | TEXTOR: A Flexible Device | doi.org/10.13182/FST05-A692
Articles are hosted by Taylor and Francis Online.
TEXTOR is equipped with two gyrotrons at 110 and 140 GHz, respectively. Both share a single power supply and a confocal quasi-optical transmission line. They cannot be operated simultaneously. The 110-GHz gyrotron with limited power and pulse length (300 kW; 200 ms) has been used in a first series of experiments on electron cyclotron resonance heating (ECRH) and electron cyclotron current drive (ECCD) and for collective Thomson scattering (CTS) diagnostics of energetic ions. In the future the 110-GHz gyrotron will be operated exclusively for CTS diagnostics, while for ECRH and ECCD, the newly installed 140-GHz, high-power (800-kW), long-pulse (>3-s) gyrotron is now available. The highlights of first ECRH experiments with the 110-GHz gyrotron are reported. These include observations of internal transport barriers with ECRH on various target plasmas: in the current plateau phase of both ohmic and radiation improved mode (RI-mode) discharges. In addition, sawtooth control by localized ECRH is demonstrated. First results on CTS include the observation of the slowing down of energetic ions and of the redistribution of energetic ions in sawtooth crashes.