perveance

perveance

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