Hologic Faxitron Path - Radiographic Survey

FAXITRON PATH USER MANUAL | HOLOGIC | REVISION 024
S
ECTION
S
chedule of
Maintenance
8
8 - 6
Radiographic Survey – to be performed at least annually or if device has been
dropped or damaged.
The following pages can be printed and used as instructions for performing the Radiogrpahic
Survey.
Record results under “Radiographic Survey” on the Periodic Maintenance Record – Faxitron
Path, located at the end of the Section.
The manufacturer recommends that a radiographic survey be performed at least annually* to
ensure radiation emissions are within the required limits. If the machine is damaged in any way
after installation, the radiographic survey should be conducted prior to putting the machine back
into use at the facility.
Required Tools
 Radiographic Survey Meter with Check Source (recommended ionization chamber type
survey meter like Inovision 451B, check source comes with device)
 1 gallon (4 liter) plastic jug of water.
Verify Survey Meter Operation
1. Calibration date: Verify that the survey meter calibration is current.
2. Battery Check: Check for proper battery condition. Replace batteries if required.
3. Check Operation: (If check source if available). Note: The following steps apply to the
Inovision 451B or similar Ion Chamber Survey Meters. Follow manufacturers’ instruction
s
for other meters.
 Open the sliding Beta Shield on the bottom of the Survey Meter.
 Set the meter down on the Check Source and monitor for 30 seconds.
 Survey Meter should read within tolerance listed on Calibration label.
 Enter the reading on the Periodic Maintenance Record.
 Close the meter’s Beta Shield.
Important Notes
1. All radiation measurements are taken with the radiation Survey Meter no more than 2 inches
(5cm) from the surface of the Faxitron Path unit.
2. When recording the radiation measurements, they may need to be multiplied by 0.1 to
convert the reading from uSv/hr to mR/hr. For example, 12 uSv/hr is equal to 1.2 mR/hr.
8.8.2
Radiographic
Survey