CLEARPASS
Full-Body Security Screening System
OPERATION
MANUAL
Identification
ADN190.00.00.000 OM2
Revision
1
Date
02.2022
Page
18 of 52
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Accumulated reference effective dose per 12-month period
In case the accumulated reference effective dose per individual
reaches 250 μSv (25
mrem) over a 12-month period – no more scans are permitted for this individual.
The system allows you to preset the mode of operation –
0.1 μSv (10 μrem) per scan
(optional).
For Limited-use System (Category 2)
In case the radiation output in the preset mode of operation exceeds the limits specific
to general-use systems, the system falls under Category 2. The “limited-use” label on the op-
erator’s screen will indicate the Category 2 system.
The reference effective dose is in the range of 0.25 μSv
– 4.0
μSv (
25
μrem
– 0.4 mrem)
per screening (withing range 3..5 sec of scanning time). The reference effective dose received
by individuals from one facility does not exceed 250 μSv (25 mrem) over a 12
-month period.
The following records are kept as part of administrative controls:
-
Number of screenings received by any individual per 12-month period
-
Accumulated reference effective dose per 12-month period
In case the accumulated reference effective dose per individual reaches 250 μSv
(25 mrem) over a 12-month period – no more scans are permitted for this individual (optional).
Table 2.1. Standard modes of operation and dose per scan according to operation mode
Mode name
Generator
mode
Scanning time
HVL
Max. effective dose
Low
160kV@
0.22mA
2.7 .. 3.0 sec
8,1 mm Al
≤ 0.25 µSv
Medium
160kV@
2.0mA
2.7 .. 3.0 sec
8,1 mm Al
≤ 2.0 µSv
High
160kV@
2.0mA
5.0 .. 5.5 sec
8,1 mm Al
≤ 4.0 µSv
