Transient pyroelectric currents are generated by single-crystal triglycine sulfate, in response to keyed X-band energy. The pyroelec¬tric signal rises to a sharp peak as the sample temperature is increased from 24 to 50°C, then decreases rapidly above 50°C. A first-order theory is developed which shows good agreement with the pyroelectric signals obtained for thin samples of TGS, but is less adequate for thick samples. A thermal conductivity, oT = 1.64 X 10 cal/cm/sec °C, and thermal diffusivity, h2 = 4.19 X 10-3 cm2/sec, are calculated for TGS.
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