Apr. 1997

Article Contents

Article Navigation > High Power Laser and Particle Beams > 1997 > 09(04): 0-

Abstract

Ａ　ＬａＢ６　ｃａｔｈｏｄｅ　ｏｆ　ＲＦ　ｅｌｅｃｔｒｏｎ　ｇｕｎｈａｓ　ｂｅｅｎ　ｄｅｓｉｇｎｅｄ　ａｎｄ　ｍａｄｅ．Ｔｈｅ　ｅｌｅｃｔｒｏｎｃｈａｒａｃｔｅｒｉｓｔｉｃｓ　ｏｆ　ＬａＢ６（１００）、（１１０）、（１１１）ｃｒｙｓｔａｌ　ｏｒｉｅｎｔａｔｉｏｎｓ　ａｒｅ　ｓｔｕｄｉｅｄ，ｒｅｓｐｅｃｔｉｖｅｌｙ．ＬａＢ６（１００）　ｃｒｙｓｔａｌ　ｏｒｉｅｎｔａｔｉｏｎｉｓ　ｕｓｅｄ　ｆｏｒ　ｔｈｉｓ　ｅｍｉｔｔｅｒ　ａｎｄ　ｒｈｅｎｉｕｍｓｕｂｓｔｒａｔｅ　ｉｓ　ｓｅｌｅｃｔｅｄ，ｔｈｅ　ｅｌｅｃｔｒｏｎ　ｃｕｒｒｅｎｔｄｅｎｓｉｔｙ　ｉｓ　３０Ａ／ｃｍ２．Ｗｈｅｎ　ｔｈｅ　ｃａｔｈｏｄｅ　ｉｓｈｅａｔｅｄ　ｔｏ　１８２３Ｋ，ｕｎｄｅｒ　５×１０－５Ｐａ　ｐｒｅｓｓｕｒｅ，ｉｔｓ　ｌｉｆｅ　ｉｓ　ｏｖｅｒ　１００００　ｈｏｕｒｓ．
- lab６ thermionic cathode,
- work function．