XEP-140 Xenon Beta/Gamma Probe
	This self contained xenon gas proportional, wide (140 cm2 active) area probe is used when large areas need to be surveyed for low concentrations of beta and gamma activity. The gamma efficiency for 6 % for I-125. The beta is efficiency is 20% for C-14, 26% for Tc-99, 49% for Cl-36, 53% for Sr-90/Y-90. The operation voltage is is 1360 to 1600 volts.

DS-XEP-140 Probe