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Sellafield is a nuclear fuel reprocessing and decommissioning site, close to the village of Seascale on the coast of the Irish Sea in Cumbria, England. The site is served by Sellafield railway station. Sellafield incorporates the original nuclear reactor site at Windscale, which is currently undergoing decommissioning and dismantling, and Calder Hall, another neighbour of Windscale, which is also undergoing decommissioning and dismantling of its four nuclear power generating reactors. == Ownership and facilities == Sellafield was previously owned and operated by the United Kingdom Atomic Energy Authority (UKAEA) and then, following the division of UKAEA in 1971, British Nuclear Fuels Ltd (BNFL). Since 1 April 2005, it has been owned by the Nuclear Decommissioning Authority (NDA) and is now operated by Sellafield Ltd. In 2008 the NDA awarded Nuclear Management Partners (NMP) the position of Parent Body Organisation of Sellafield Ltd. under their standard management model for NDA sites. This consortium, composed of US company URS, British company AMEC, and AREVA of France, was initially awarded a contract for five years, with extension options to 17 years.〔(【引用サイトリンク】title=NMP Company Profile )〕 On 13 January 2015, the NDA announced that NMP would lose the management contract for Sellafield Ltd. as the "complexity and technical uncertainties presented significantly greater challenges than other NDA sites", and the site was therefore "less well suited" to the NDA's existing standard management model.〔(【引用サイトリンク】title=UK to change way Sellafield is managed )〕 The new structure will see Sellafield Ltd. become a subsidiary of the NDA, with involvement from a strategic partner company. Activities at the Sellafield site primarily support decommissioning of historic plants, and reprocessing fuel from UK and international nuclear reactors. Decommissioning projects include the Windscale Piles, Calder Hall, historic reprocessing facilities, waste stores, as well as other clean-up projects on the site. Reprocessing plants include the THORP nuclear fuel reprocessing plant, the Magnox nuclear fuel reprocessing plant, and the Waste Vitrification Plant. The site contains several nuclear waste stores, with the Low Level Waste Repository 6 km away at Drigg. The UK's National Nuclear Laboratory also has its Central Laboratory on the Sellafield site. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sellafield」の詳細全文を読む スポンサード リンク
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