Thermo Scientific SAM12, Manual

Page: 70 / 176

Operating Instructions Issue: 1.0
5-30 SAM12 User Manual Thermo Fisher Scientific
Note that this menu option is only displayed if the CCM
Enabled option is ticked in the Options page - see
Options
(page 5-6) .
Select CCM|Setup to select the
parameters for the CCM Channel
Note that this section is set by at production and should only be
changed in consultation with Thermo Fisher Scientific.
Description of options:
Field Name Description
Coincidence
Threshold (mV) This is the high threshold for summed pulses.
Coincidence Period
(ns) This is an estimate of the Coincidence Period set in
nanoseconds.
Select CCM|Information to view
the status information for the
CCM Channel
Description of options:
Field Name Description
MDA (default units)
Note that this is a view only field.
The Minimum Detectable Activity (MDA) is a
value derived by the SAM12 and is the smallest
activity that can be statistically accurately detected
with the current settings and background. The
MDA is calculated using the probability of
detection, probability of false alarm, monitoring
time and the average background etc. Dashes are
shown if this value is not available.
Detection Limit (cps)
Note that this is a view only field.
This is the MDA expressed in counts per second
CCM Menu
CCM Setup
Information