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原位Sn-119穆斯堡尔谱仪

¥3,000.00

  • 型号: MFD-500AV-03
  • 商品库存: 有现货
  • 销量: 1

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原位Sn-119穆斯堡尔谱仪

主要功能

1) 可连续测试室温和650K,常压和2 MPa之间任何温度点和任意压力点,任意氧化还原气氛下的原位119Sn穆斯堡尔透射谱, 2) 可在室温或高温测试需要真空或特定气氛保护的不稳定性样品。

样品要求

1) 原位样品池直径为15 mm,厚度可达3mm; 2) 原位高温高压表征测量,推荐使用富集同位素119Sn制样; 3) 常规室温穆斯堡尔谱测量,锡在样品中的最佳吸收厚度推荐值为10 mg/cm2; 4) 邮寄样品重量(mg)不少于10mg/cm2除以样品中铁/锡的百分含量, 过少的样品量会影响测试效果,请尽量多备一些样品邮寄;

收费标准

请联系在线客服详细沟通

仪器信息

中文名称:原位Sn-119穆斯堡尔谱仪 英文名称:In-situ/Operado Sn-119 Mössbauer Spectrometer 生产厂家:Topologic Systems(日本) 型  号:MFD-500AV-03 穆斯堡尔谱技术是通过观测原子核对伽马射线的共鸣吸收现象而研究核外电子举动的科学,能量分辨率高,可观察穆斯堡尔核素的超精细相互作用,表征样品中的锡物相、锡的价态、配位结构和磁性等。 穆斯堡尔谱观测使用keV级的伽玛射线,在空气中衰减小,无需真空环境,可以在高温、高压及特定气氛下,以及外加磁场、微波、超声和光等作用诱发下观测,获得功能材料,如多相催化材料在真正工作状态下的电子的、结构的和磁性的演化信息。 本套原位装置是研究多相热催化含锡催化材料的构效关系和催化机理的理想选择。 原位系统可灵活安装和拆卸,提高仪器利用率,使其可兼顾进行室温表征。 穆斯堡尔仪器的竖式几何组装有利于固体粉末样品的原位表征测量,容易保持粉末样品平面均匀分散。 本套穆斯堡尔仪器的透射观测模式和反射观测模式可自由进行切换,透射谱主要得到的是样品体相中锡的状态信息,而反射谱主要得到的是样品表面的锡的状态信息,且可通过选择不同能量的电子探测而进行独特的深度选择表征,是表面科学研究不可多得的强有力工具。

技术参数

1) 特殊不锈钢材质原位池,结构设计独特,信号入射窗口和出射窗口间距离缩短至5 mm; 2) 高纯铍窗材料,氧化铝镀膜特殊工艺加工,透过率高和耐压能力好; 3) 四头加热棒高效升温,室温至650 K控温,常压至2 MPa变压,双系统随意切换,实现任意氧化还原气氛下的高温高压原位表征; 4) 超低振动,标准铁线宽0.28 mm/s; 5) 放射源、样品池和探测器竖式组装,原位系统可灵活拆卸; 6) Ca119mSnO3高质量单线放射源,出厂活度10 mCi; 7) Na(I)碘化钠闪烁晶体探测器,锡穆斯堡尔谱探测效率高;


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