tall, by 24 inches wide, and 60 inches long.
2.9.1.4
X-Ray Tube
Output from the X-ray tube shall be able to penetrate steel up to 3.2 mm
1/8 inch thick.
2.9.1.5
Electrical
The article surveillance/X-ray device shall operate from the power source
shown.
2.9.1.6
Safety
The article surveillance/X-ray device shall include dual lead-lined
curtains at the entrance and exit to the conveyer system package scanning
region. The radiation exposure to operator for each package inspection
shall be not more than 0.2 milliroentgen. The article surveillance/X-ray
device shall not adversely affect magnetic storage media as it is passed
through the device.
2.9.1.7
Display
The display system shall use a standard 525 line television monitor to
present X-ray data to the article surveillance/X-ray device operator. The
article surveillance/X-ray device shall be designed and configured to
provide at least 64 gray scale shades or at least 64 distinct colors. The
article surveillance/X-ray device shall also provide image enhancement,
zoom, pan, split screen, and freeze-frame capabilities.
2.9.1.8
Conveyor
The article surveillance/X-ray device shall have a conveyor system with
foot switch controls. The conveyor shall be reversible and suitable for
intermittent operation with a minimum speed range of 0 to 0.18 m/s 0 to 35
feet per minute.
2.9.1.9
Material Identification and Resolution
The article surveillance/X-ray device shall be able to detect and identify
the full range of ferrous and non-ferrous metals, plastics, plastic
explosive compounds, drugs, and other contraband as required. The
resolution of this device, including its display, shall be sufficient to
identify a 30 AWG solid copper wire.
2.9.2
Metal Detector
The Contractor shall provide a walk through type metal detector. The metal
detector shall be interfaced to the system's local processors and shall
function as a sensor/detector subsystem. The metal detector shall be
designed so that it may be incorporated into entry booths as required, and
when incorporated as a subsystem of the entry booth shall be connected to
the entry booth local processor subsystem. The metal detector shall be
designed for continuous operation. The metal detector shall use an active
pulsed or continuous wave induction type detection field. The design of
the metal detector shall create a field detection pattern with no holes or
gaps from top to bottom and across the passage area, and shall provide 100
percent Faraday shielding of the sensor coil. The metal detector shall
incorporate measures to minimize false alarms from external sources. A
SECTION 13720A
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