燈絲式陰極 的英文怎麼說
中文拼音 [dēngsīshìyīnjí]
燈絲式陰極
英文
filament-type cathode- 燈 : 名詞1. (照明等用的發光器具) lamp; lantern; light 2. (燃燒液體或氣體用來對別的東西加熱的器具) burner 3. (俗稱電子管) valve; tube
- 式 : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
- 陰 : Ⅰ名詞1 (中國古代哲學認為宇宙中通貫物質和人事的兩大對立面之一) (in chinese philosophy medicine ...
- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
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However, the most commonly used x - ray sources didn " t change much no matter in structure or theory, still using thermionic cathodes as electron sources. such conventional x - ray tubes have some defaults, such as big volume, low frequency response, demanding for supply to cathode that was also brittle
目前使用的x光源的基本特點是採用熱電子發射形式即採用熱燈絲作為電子發射源,在高壓加速下轟擊陽極產生x射線,這樣的光源體積較大,需要加熱陰極的電源,且對頻率響應慢。
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