Author:
Mambetova K.M.,Shandarov S.M.,Arestov S.I.,Orlikov L.N.,Elchaninov A.A.,Burimov N.I.,Aksenov A.I.
Abstract
Abstract
We describe here an experimental prototype designed for
registration of nanosecond discharge current pulses with an
amplitude of up to 600 mA and a negative/positive polarity in the
air gap between the +Z surface of a pyroelectric lithium niobate
crystal and a flat copper electrode during the crystal
heating/cooling cycles. The experiments were carried out in air at
atmospheric pressure using a cylindrical lithium niobate sample with
a diameter of 13 mm and a thickness of 7 mm. With the temperature
varying from 20 to 80 °C, there were registered over 50
discharge pulses for heating as well as for cooling stage. Their
parameters testify to pyroelectric generation of pulsed electron
beam with a current at maximum from 45 mA to 600 mA, duration of
about 15 ns, rise time from 1 to 1.9 ns, and transferred charge
from 0.95 to 5.7 nC.
Subject
Mathematical Physics,Instrumentation