Van Hook R I, Herbert E T
Health Phys. 1971 Dec;21(6):845-50. doi: 10.1097/00004032-197112000-00014.
Cesium-137 retention was determined for brown crickets, Acheta domesticus, which had been irradiated with 0, 1000, 2500 and 5000 rad gamma radiation and maintained at 20, 25 and 30 degrees C. Parameters examined for temperature and dose effects were (1) per cent 137Cs assimilated into body tissues (p2), (2) rate of isotope passage through the gut (k1) and (3) rate of elimination of assimilated 137Cs (ks). Increases in temperature and gamma dose resulted in a general decrease in per cent 137Cs assimilated pe day (p2). The first-component elimination coefficient (k1) was not significantly affected (P less than or equal to 0.05) by either temperature or dose changes. Biological elimination coefficients for assimilated 137Cs (k2) increased with increasing temperature between doses of 0 and 2500 rad. Above 2500 rads however, increases in temperature had no noticeable effects on the rate of assimilated 137Cs excretion. At higher dose levels, radiation was the dominant factor influencing the parameter k2.
测定了经0、1000、2500和5000拉德伽马辐射并分别饲养于20、25和30摄氏度环境下的家蟋蟀（Acheta domesticus）体内铯 - 137的滞留情况。研究温度和剂量效应所检测的参数包括：（1）被吸收到身体组织中的铯 - 137的百分比（p2）；（2）同位素通过肠道的速率（k1）；（3）被吸收的铯 - 137的消除速率（ks）。温度和伽马剂量的增加导致每天被吸收的铯 - 137的百分比（p2）总体下降。第一组分消除系数（k1）并未因温度或剂量变化而受到显著影响（P≤0.05）。在0至2500拉德剂量范围内，被吸收的铯 - 137的生物消除系数（k2）随温度升高而增加。然而，在2500拉德以上，温度升高对被吸收的铯 - 137的排泄速率没有显著影响。在较高剂量水平下，辐射是影响参数k2的主要因素。
