About NEC(National Electrostatics Corp.)

美国NEC公司介绍

---The world leader in Megavolt accelerator technology兆伏加速器技术的世界***

National Electrostatics Corporation (NEC) is the world's leader in the manufacture of electrostatic ion beam accelerator systems. A private， employee-owned company， NEC was incorporated in Middleton， Wisconsin in 1965 and now has over 90 employees including electrical and mechanical engineers， ion beam system technicians， craftsmen， and other skilled workers. Five of our employees hold doctorates in fields related to ion beam research and design.

NEC是世界上**的制造静电离子束加速器系统公司，公司于1965年成立于美国米德尔顿，威斯康辛州。目前拥有90名员工，其中包括电气工程师和机械工程师，离子束系统技术，工艺和其他技术工人，我们有五位员工持有离子束研究和设计相关领域的博士学位。

NEC employees pride themselves on making a wide variety of Pelletron ® accelerator systems to meet customers' needs. To date we have manufactured about 175 Pelletron systems with sales in 44 countriesthroughout the world. These systems produce ion beams of essentially all stable nuclei with energies ranging from a few keV to hundreds of MeV. The Pelletron is still the world's only commercially available accelerator which incorporates an all metal and ceramic acceleration tube with no organic material in the vacuum volume.

为了满足客户的需求，我们在做各种多种的Pelletron®加速器系统，这些都让NEC的员工引以自豪。迄今为止，在全球44个国家，我们已经制造并销售了 175套Pelletron的系统。这些系统到目前为止都能稳定的产生几keV到几百MeV不等的离子束。NEC公司的Pelletron 仍然是目前世界上**在市销售的包含一个全金属和陶瓷加速管没有有机材料在真空卷的商用加速器。

Pelletron systems range in size and configuration from the highly versatile 25 million volt tandem Pelletron at the Oak Ridge National Laboratory (the world's highest voltage accelerator)， to dedicated analytical instruments using MeV ion beam technology. MeV ion beam instruments are available for standard RBS analysis， channeling RBS， PIXE， micro PIXE and micro RBS， very high-sensitivity accelerator mass spectrometry (AMS) and a wide variety of other materials analysis techniques.

NEC公司的高灵敏度和宽配置范围的25万伏串连式静电加速器系统目前应用于橡树岭国家实验室（世界**电压加速器），采用高能离子束技术，专业分析MeV的离子束的RBS分析，窜RBS，PIXE，微PIXE和微RBS，NEC在这些测试方面拥有非常高的灵敏度加速器质谱（AMS）和各种各样的其它材料的分析技术。

The Pelletron gets its name from the metal pellet charging chainswhich are highly efficient， provide long life， need little maintenance and provide extremely stable terminal voltage conditions.

Pelletron使用寿命长，需要很少的维护，并提供极其稳定的终端电压条件。Pelletron由金属颗粒充电链的高效而因此得名。

NEC specializes in custom-made， one-of-a-kind ion beam systems.

NEC专业定制的、****的离子束系统。

初期应用于考古学的C₁₄ 记年的加速质谱仪，如今被用于测量例如铍，铝，氯，钙等众多元素的同位素比值。它被应用于地质物理学，海洋学，

环境和古气候探究，生物医学，生化动力学，材料研究，监控，原子核，原子物理学和微量元素的分析等诸多领域。