MODEL 2350-1 Data Logger
11
2. CALIBRATION ROUTINES
KEYSTROKES
SKB ENTER
5e-4 ENTER
15e-3 ENTER
C ENTER
C ENTER
C ENTER
RESPONSE
The Model 2350-1 will show the calibration
constant/dead time routine with background
subtract control display with a prompt to set the
low cal point.
This will set the lower calibration point at
500
m
R/hr, then a prompt will appear for the hi cal
point.
This will set the high calibration point at 15
mR/hr, then a prompt will appear to take a
background sample.
This will initiate the scaler to take a
background reading, then a prompt will appear to
take the low sample count. Place a 1
m
Ci
137
Cs
check source on the end of the detector.
This will initiate the scaler to take a count
with the low sample source, then a prompt will
appear for the hi sample count. Place a 5
m
Ci
137
Cs
check source on the end of the detector.
This will initiate the scaler to take the hi
sample reading.
The following example will calculate the cal constant and dead time of a Model 44-2
Gamma Scintillator in R/hr.
NOTE: The SSK command initiates the same routine as stated above except
that the background count is not taken or considered when determining
the calibration constant and dead time of the system.
ADDITIONAL PARAMETERS
1. The background count should be less than 2% of the low sample count.
2. The low sample count should have at least 15,000 counts.
3. The high sample should be at least 100 times the low sample and produce
between 30 - 60% dead time loss.
Содержание 2350-1
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