Cold Cathodes for Electron Spectroscopy

小行星9361179比茨 冷电子发射体技术的发展有可能广泛影响电子光谱学的快速发展领域。 诸如俄歇光谱仪的市售仪器通常采用负离子电子源，这通过灯丝加热效应和灯丝上气体的热裂解来限制它们的使用范围。 这些仪器也不能在亚秒级上执行时间分辨现象。 一个强大的冷发射器能够高频脉冲操作的发展不仅解决了这些问题，但更重要的是，它将使革命性的新发展，在建设极高速，高灵敏度的电子光谱仪器采用傅立叶变换（FFT）飞行时间测量技术。 在第一阶段，先进技术材料公司（ATM）将确定使用新型金刚石结基极发射体制造冷阴极电子源的可行性。 冷阴极源将进行评估，并在第二阶段将采用在一个原型FFT俄歇光谱仪的建设。 在第三阶段，冷阴极电子束枪的商业化生产预计将用于各种电子光谱和UHV仪器应用。 ***

9361179 Beetz The development of cold electron emitter technology has the potential for broadly impacting the rapidly growing area of electron spectroscopy. Commercially available instrumentation such as Auger spectrometers typically employ thermionic electron sources which restrict their scope of use through filament heating effects and thermal cracking of gases on filaments. These instruments are also not capable of performing time resolved phenomena on the sub second level. The development of a robust cold emitter capable of high frequency pulsed operation would not only solve these problems but more importantly, it would enable revolutionary new development in the construction of extremely high speed, high sensitivity electron spectroscopic instrumentation employing Fas Fourier Transform (FFT) time of flight measurement techniques. In Phase I, Advanced Technology Materials, Inc (ATM) will determine the feasibility of fabricating a cold cathode electron source using a novel diamond junction base emitter. The cold cathode source will be evaluated and in Phase II be employed in the construction of a prototype FFT Auger spectrometer. In Phase III commercial production of cold cathode electron beam guns is anticipated for use in a variety of electron spectroscopy and UHV instrumentation applications. ***