Ludlum Measurements 3003, Руководство пользователя

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Model 3003 and 3003i Multi-Detector Survey Meter / SCA
Section 7
Ludlum Measurements, Inc. Page 7-2 September 2020
Units
Depending on the chosen display units, different features will affect the
value of the reading. The following table lists the features that apply to each
of the display units.
R to Sv Conversion
The R to Sv conversion is a setting available in Lumic Calibration software.
It defines the conversion factor between R and Sv. Since the calibration
constant is directly tied to R (counts per R), calibrating Sv requires a correct
setting of both calibration constant and R to Sv conversion.
The rem unit is also affected by the R to Sv conversion. A rem is
defined in firmware as being 100x the value of Sv.
Example: An R to Sv conversion factor of 0.0106 will cause a reading of
10.6 mSv/h while in a 1 R/hr field.
Unit Feature
cpm
cps
counts
Dead time correction
Bq
dpm
disintegrations
Dead time correction
Efficiency
Bq/cm
2
Dead time correction
Efficiency
Active area
R/h
R
Dead time correction
Calibration constant
Sv/h
Sv
rem/h
rem
Dead time correction
Calibration constant
R to Sv conversion
These apply to all modes.