کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9698846 | 1461341 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Using static charge on pyroelectric crystals to produce self-focusing electron and ion beams and transport through tubes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Using static charge on pyroelectric crystals to produce self-focusing electron and ion beams and transport through tubes Using static charge on pyroelectric crystals to produce self-focusing electron and ion beams and transport through tubes](/preview/png/9698846.png)
چکیده انگلیسی
Static charge in and on the surface of pyroelectric crystals of LiNbO3 and LiTaO3 in a dilute gas has been shown to ionize gas molecules via electron tunneling. The released electrons and positive ions are focused and accelerated according to the sign of the static uncompensated charge. The uncompensated charge is produced when the temperature of the crystal is changed from any initial temperature between about 500 and about 15 K. It may be either polarization charge that is inside the crystal surface or compensation charge that is on the surface. The direction of temperature change and the polarity of the base of the crystal determine whether electrons or positive ions are accelerated toward or away from the crystal. The ionization, focusing and acceleration may continue for more than 15 days following a single change in temperature from â¼20 to â¼160 to â¼20 °C. Electron and ion transport through tubes is demonstrated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electrostatics - Volume 63, Issues 3â4, March 2005, Pages 249-259
Journal: Journal of Electrostatics - Volume 63, Issues 3â4, March 2005, Pages 249-259
نویسندگان
James D. Brownridge, Stephen M. Shafroth,