Description
The LM1 monitoring system consists of a SD220N gamma scintillation detector with SDA3E preamplifier/SCA unit, local RM1W display and control unit, LS44 liquid sampler, liquid pumping system, and local cables to interconnect the system electronics. The detector will continuously measure the gamma energies from the liquid sample stream and provide nuclear pulses to the preamp/SCA.
The preamplifier/SCA unit can be set to operate in differentiate mode measuring up to three regions of interest, or it can be operated in integrate mode measuring gross gamma activity. The LM1 liquid monitoring system will achieve a lower limit of detection of 2.7E-8 uCi/cc of Cs137 in a 10uR/hr Cs137 gamma background with ten minutes integration time and two standard deviations of background.
