Barium Tungsten Electrode

Barium tungsten electrode is a high intensity discharge lamp electrode material. It is produced for improve the properties of tungsten electrode which is changing the low electrons emission ability of pure tungsten electrodes, increasing electrons and electron current density, improving gas discharge lamp ignition speed, reducing electrode working temperature so it can apply in different fields. Barium tungsten electrode has high electron emission capability, low work function, high electron emission electron current density, good gas discharge lamp ignition speed, low working temperature and other good performances. In addition, the barium tungsten electrode is a non-radioactive poison electrode and has anti-poisoning ability.

Because barium tungsten electrode having the above excellent performances often used in optoelectronic products, navigation mark identification, target tracking, laser mercury pump, medical positioning light treatment and military weapons field and so on. For example, because it having low work function (φ = 1.6 ev), high current density (10A / cm2), good starting performance, large power output and other characteristics, are widely used in HID lamps. In addition, barium tungsten electrode having low work function, so often used to make electric vacuum and laser device in which the electron emission performance of light products can be achieved from low to high repetition rate (1 ~ 40 times / sec). The start-up performance of stroboscope lamp has been significantly improved which is produced by barium tungsten electrode. On the other hand, because current density of the electrode is high, so the luminance of stroboscope lamp increases by about 15%. At the same time, using barium tungsten electrodes to produce high frequency stroboscope lamp has long service life, up to 500 million times. Besides, during working there are not occur leakage flash, chain lightning and other problems.

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