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首页> 外文会议>2001 conference of Waste Management (WM);Annual Waste Management Symposium >ASSESSMENT OF NUCLEAR POWER SCENARIOS ALLOWING FOR MATRIXBEHAVIOR IN RADIOLOGICAL IMPACT MODELING OF DISPOSAL SCENARIOS
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ASSESSMENT OF NUCLEAR POWER SCENARIOS ALLOWING FOR MATRIXBEHAVIOR IN RADIOLOGICAL IMPACT MODELING OF DISPOSAL SCENARIOS

机译：处置情景的辐射影响建模中允许矩阵行为的核动力情景评估

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Under the provisions of the 1991 French radioactive waste management law, various fuel cycle scenariosrnwill be assessed and compared in terms of feasibility, flexibility, cost, and ultimate waste radiotoxicrninventory. The latter criterion may be further broken down into “potential radiotoxic inventory” (thernradiotoxic inventory of all the radionuclides produced) and “residual radiotoxic inventory” (the radionuclidernfraction reaching the biosphere after migration from the repository).rnThe innovative scientific contribution of this study is to consider a third type of radiotoxic inventory: thernpotential radiotoxic inventory after conditioning, i.e. taking into account the containment capacity of thernradionuclide conditioning matrices. The matrix fraction subjected to alteration over time determines thernpotential for radionuclide release, hence the notion of the potential radiotoxic inventory after conditioning.rnAn initial comparison of possible scenarios is proposed by considering orders of magnitude for thernradionuclide containment capacity of the disposal matrices and for their mobilization potential. All thernscenarios investigated are normalized to the same annual electric power production so that a legitimaterncomparison can be established for the ultimate wasteforms produced per year of operation.rnThis approach reveals significant differences among the scenarios considered that do not appear when onlyrnthe raw potential radiotoxic inventory is taken into account. The matrix containment performance has arndecisive effect on the final impact of a given scenario or type of scenario. Pu recycling scenarios thusrnreduce the potential radiotoxicity by roughly a factor of 50 compared with an open cycle; the gain rises to arnfactor of about 300 for scenarios in which Pu and the minor actinides are recycled. Interestingly, the resultsrnobtained by the use of a dedicated containment matrix for the minor actinides in a scenario limited to Purnrecycling were comparable to those provided by transmutation of the minor actinides.rnThese comparisons were established for steady-state scenarios based on annual production. Arncomprehensive assessment must also take into account the waste backlog produced during the interimrnphases, the feasibility of the fuel cycle reprocessing and fabrication facilities, and the capital and operatingrncosts.
机译：根据1991年法国放射性废物管理法的规定，将评估各种燃料循环方案，并从可行性，灵活性，成本和最终废物放射性毒性清单方面进行比较。可以将后一个标准进一步分解为“潜在放射性毒性清单”（所有产生的放射性核素的放射性放射性毒性清单）和“残留放射性毒性清单”（从储存库迁移到生物圈后到达生物圈的放射性核素馏分）。考虑第三种放射毒性清单：调节后的潜在放射性清单，即考虑到放射性核素调节基质的容纳能力。随时间变化的基质部分决定了放射性核素释放的潜力，因此确定了条件处理后潜在的放射性毒性清单的概念。建议通过考虑处置基质的放射性核素遏制能力及其动员量级，对可能的方案进行初步比较。潜在。所有调查的情景均被归一化为相同的年发电量，因此可以对每年运营中产生的最终废料形式进行合理的比较。这种方法揭示了在认为仅采用原始潜在放射性毒性清单时不会出现的情景之间的重大差异。考虑在内。矩阵遏制性能对给定方案或方案类型的最终影响具有决定性影响。与开放式循环相比，Pu回收方案将潜在的放射毒性降低了约50倍。在Pu和次the系元素被回收的情况下，增益提高到大约300。有趣的是，在仅限于Purnrecycling的情况下，对次the系元素使用专用遏制矩阵所获得的结果与对次act系元素进行provided变所提供的结果相当。这些比较是针对基于年产量的稳态情况而建立的。全面的评估还必须考虑到过渡阶段产生的积压废物，燃料循环后处理和制造设施的可行性以及资本和运营成本。

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