12
For further information on these tests, please contact Aribex.
Handheld as Safe as Wall Mount?
Due to the design of the NOMAD, operators using the device tend to experience an
average monthly radiation dose about 28 times lower than that of operators using wall-
mounted systems.
1
Not only is the NOMAD as safe as a wall-mount device, in some cases
it appears to be even safer.
2.3 Usage and Duty Cycle
As a safety feature, the NOMAD Pro 2 will not emit X-rays with insufficient voltage (low
battery).
The NOMAD Pro 2 is also designed to avoid damage from overheating. The minimum duty
cycle rating for maximum exposure (the relationship between duration and frequency of
exposures taken during a rolling 60 second period) is 1:60. This duty cycle is programmed
into your NOMAD Pro 2. The following table shows examples of optimal use:
Exposure Duration 0.09 sec 0.20 sec 0.40 sec 1.00 sec
Hypothetical Time
Between Exposures
6 seconds 12 seconds 24 seconds 60 seconds
Exposures Per Minute >10 >8 >2 1
1 “Dental Staff Doses With Handheld Dental Introral X-ray Units,” JE Gray, ED Baily, JB Ludlow, Health Physics Society
102.2 (2012), P. 137-142.
Vertical Plane, Significant Zone of
Occupancy: 60 cm x 200 cm
Horizontal Plane, Significant Zone of
Occupancy: 60 cm x 60 cm
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