Tracerco NORM Monitor IS User Manual

14 MN1007-C
The NORM Monitor-IS Geiger Müller probe is calibrated with response factors for lead-210 and radium-226.
Selection of the appropriate nuclide for the particular NORM samples allows the user to set PASS/FAIL criteria is
summarised as follows.
Table 4 – Alarm options when using Bq/cm
2
for NORM assessment
3.2.3 Dose rate
Legislative requirements, typically in the US, require operators to assess NORM on the basis of the direct radiation
dose rate which would be experienced by a worker at the nearest “accessible” location to the contaminated item.
This requirement is satisfied with the Scintillation Probe which can take measurements in units of µSv/h or µR/h.
The NORM Monitor IS dose rate output is calibrated by Tracerco against a traceable Cs-137 source.
[See Section 10.3]
Table 5 – Alarm options when using dose rate for NORM assessment
3.2.4 Specific activity
Specific activity in Bq/g is used as the fundamental measure of NORM activity. This measurement is performed by
Tracerco in laboratory conditions using highly complex measurement instrumentation.
Contact radiation.monitors@tracerco.com for further details regarding radionuclide spectrum analysis of NORM
samples.
Operating mode Alarm type Description
Bq/cm
2
Level Alarm activated when Bq/cm
2
exceeds user-configured level
Operating mode Alarm type Description
Dose rate Level Alarm activated when total dose rate exceeds user-configured level
Dose rate minus
background
Level Alarm activated when dose rate above background dose rate
exceeds user-configured level
Dose rate minus
background
Factor Alarm activated when a multiple of background dose rate is exceeded.

Tracerco NORM Monitor IS Specifications

General

Brand	Tracerco
Model	NORM Monitor IS
Category	Monitor
Language	English