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酰胺荚醚对Am(Ⅲ)和Eu(Ⅲ)的萃取行为研究 Ⅱ萃取势力?… 总被引:1,自引:0,他引:1
以40%辛醇/煤油为稀释剂,研究了3种荚醚:N,N,N^’,N^’-四丁基-3-戊二酰胺(TBOPDA)、N,N,N^’,N^’-四异丁基-3-氧-戊二酰胺(TiBOPDA)和N,N,N^’,N^’-四丁基-3,6-二氧-辛二酰胺(TBDOODA)在硝酯介质中对Am(Ⅲ)和Eu(Ⅲ)的萃取热力学。TBOPDA、TiBOPDA和TBDOODA萃取镅的反应焓变分别为:-80.54、-81.99和-75 相似文献
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铀氢锆堆物理计算及燃料管理软件包 总被引:3,自引:1,他引:2
建立了一套铀氢锆堆物计算软件包,首先考虑氢化锆中的热化特殊性,按WMS格式制作 了氢化锆 氢的69群群常数并入WIMS-D/4数据库中,形成了WIMS-N1库和WIMS-N2库;应用WIMS-N2库和国际通用的WIMS-D/4程序包计算了铀氢锆堆各类栅元的群常数,应用差分程序CITATION和六角形节块和SIXTUS进行扩散计算,同时在SIXTUS-2程序的基础上编制了燃料管理程序和XPR-ICF 相似文献
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硝酸铀酰与TDD配合物合成及性质研究 总被引:1,自引:1,他引:0
在氯仿-甲醇混合剂中,合成了N,N,N'N'-四苯基-3,6-二氧杂辛二酰胺(TDD)与硝酸铀酰的固体配合物,其分子式为[UO2(NO3)2(TDD)]。通过元素分析、红外光谱、热分析、^1HNMR谱和摩尔电导率对该配合物进行了表征。 相似文献
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硝酸铀酰与TDD配合物的合成及性质研究 总被引:1,自引:0,他引:1
在氯仿-甲醇混合溶剂中,合成了N,N,N’N’-四苯基-3,6-二氧杂辛二酰胺(TDD)与硝酸铀酰的固体配合物,其分子式为[UO_2(NO_3)_2(TDD)]。通过元素分析、红外光谱、热分析、 ̄1HNMR谱和摩尔电导率对该配合物进行了表征。 相似文献
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中国评价核数据库第二版(CENDL-2),包含从H到中的54个重要核的全套评价中子核数据,中子能区为10-520MeV。它是在CENDL-1基础上,进行更新评价、扩展能区、扩充核素和数据种类;按国际标准格式建立计算机化核数据库;改进和发展理论计算、评价处理的有关方法和技术,研制配套相应的计算程序和基准检验程序系统;评价分析和理论计算细致,部分核的评价有自己的特色,较国际上先进的评价核数据库有所改进,有些评价数据还被这些先进库所采用。国际原子能机构已把CENDL-2作为国际上最先进的5个主要评价核数据库之一向世界各国发行,提供使用。 相似文献
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核聚变实验装置HT-7U及大厅活化分析 总被引:4,自引:2,他引:2
使用一维SN离散坐标法输运程序ANISN、活化计算程序AFDKR并使用一维球几何模型对HT-7U装置米要部件及混凝土屏蔽墙的活化进行了计算和分析,给出了中子能谱、γ能谱、大厅内外剂量率空间分布及放射性水平的时间分布,对HT-7U装置的主要中子学参数及周围居民接收剂量水平给出了定量的分析。 相似文献
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The whole superconducting HT-7U Tokamak is a high-cost and large-scale compli-cated device.The assembly requiremem of HT-7U device is arduous and strict.At present,therehave been no guiding principle for the assembly of the device,but assembly simulation can help theengineer plan and make decision by an intuitional and visual way before its actual assembly.The 相似文献
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The cryostat of HT-7U tokamak is a large vacuum vessel surrounding the entire basic machine with a cylindrical shell,a dished top and a flat bottom.The main function of HT-7U cryostat is to provide a thermal barrier between an ambient temperature test hall and a liquid helium-cooled superconducting magnet.The loads applied to the cryostat are from sources of vacuum pressure,dead weight,seismic events and electromagnetic forces originated by eddy currents.It also provides feed-through penetrations for all the conecting elements inside and outside the cryostat.The main material selected for the cryostat is stainless steel 304L.The structural analyses including buckling for the cryostat vessel under the plasma operation condition have been carried out by using a finite element code.Stress analysis results show that the maximum stress intensity was below the allowable value.In this paper,the structural analyses and design of HT-7U cryostat are emphasized. 相似文献
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翁佩德 《等离子体科学和技术》2002,4(6):1579-1584
HT-7U is a superconducting tokamak. which is being constructed in Institute of Plasma Physics, Chinese Academy of Sciences. The mission of the HT-7U project is to develop a scientific and engineering basis of the steady state operation of advanced tokamak.The engineering design of the device has been optimized. The R&D program is going on. Short samples of the conductor and a CS model coil were tested. All the TF and PF coils will be manufactured and tested in Institute of Plasma Physics. Therefore, a 600-meter long jacketing line for cable-in-conduit conductors along with two winding machines, a set of VPI equipment and a test facility for the TF and PF coils are ready in ASIPP now. In this paper, the recent progress of the HT-7U is described. 相似文献
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Q.P. Yuan B.J. Xiao R.R. Zhang M.L. Walker B.G. Penaflor D.A. Piglowski R.D. Johnson 《Fusion Engineering and Design》2012,87(12):1912-1916
In order to improve the synchronization, flexibility and expansibility of the plasma control on HT-7, a new plasma control system (HT-7 PCS) was constructed. The HT-7 PCS was based on a real-time Linux cluster with a well-defined, robust and flexible software infrastructure which was adapted from DIII-D PCS. In this paper, the hardware structure and system customization details for HT-7 PCS are reported. The plasma position and current control, plasma density control and off-normal event detection, which were realized in separated systems originally, have been integrated and implemented in such HT-7 PCS. All these control algorithms have been successfully validated in the last several HT-7 experiment campaigns. Good control performance has been achieved and the experiment results are discussed in the paper. 相似文献
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Total radiation losses in ohmically heated plasma have been investigated in the HT-7 tokamak after different wall conditionings. Discharges after siliconization and boronization have been studied by using bolomitric measurements. Not only low-Z impurities but also high-Z impurities are reduced obviously after wall conditioning. The fraction of the total radiation loss to the ohmic input increases with increasing line-averaged central electron density. But it decreases with increasing the plasma current IP after wall conditionings. It is slightly lower for a boronized wall than that for a siliconized wall. 相似文献
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Multi-element doped graphite,GBST1308 has been developed as a plasma facing material(PFM) for high heat flux components of the HT-7U device.The thermal performance of the material under steady-state(SS) high heat flux was evaluated under actively cooling conditions,the specimens were mechanically joined to copper heat sink with supercarbon sheet as a compliant layer between the interfaces.The experiments have been performed in a facility of ACT (actively cooling test stand) with a 100kW electron gun in order to test the suitability and the loading limit of such materials.The surface temperature and bulk temperature distribtuion of the specimens were investigated.The experimental results are very encouraging that when heat flux is not more than 6 MW/m^2,the surface temperature of GBST1308 is less than 1000℃,which is the lowest,compared with IG-430U and even with CX-2002U(CFC),The primary results indicate that the mechanically-joined material system by such a proper design as thin tile.Super compliant layer,GBST as PFM and copper-alloy heat sink,can be used as divertor plater for HT-7U in the first phase. 相似文献
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