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perveance

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perveance [′pər·vē·əns]
(electronics)
The space-charge-limited cathode current of a diode divided by the ³⁄₂ power of the anode voltage.


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The operating conditions were chosen as: He pressure of 20-3 0 mTorr, cathode voltage of 7-11 kV, cathode current of 30-40 mA (regulated) to enhance the beam perveance.
 
 
 
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