Construction:
Material:
Single circuit board for high reliability
o mounted between two acrylic plates
o plastic plates coated with a high quality EMI shield
o top surface is covered with durable alignment template
Dimensions:
55.88 cm wide by 31.12 cm long by 4.27 cm thick.
Weight: 5.7 kg.
Mounting:
o Pivot hole in bottom acrylic plate, directly below center detector (9.525 mm diameter, 9.525 mm deep)
o “1/4-20” threaded holes surrounding the array in the bottom plate (in the 4 corners of a centered “20 inch x 4.125 inch” rectangle, 0.375 inch from the top edge. Array center is 2.512 inch from top edge, 11.000 inch from left and right sides.)

System Requirements:
Operating System: Windows 98 or higher

Cables Included:
Power/Data: 25 meter, 8pin DIN connector on both ends
Serial: 2 meter, 9 pin D (M/F) and 2 meter USB 2.0
Line Power: 2 meter, USA style 3 prong male on one end, IEC 320 plug on other end

Firmware:
Operates out of Flash Memory; upgradeable through PC.

Power Supply:
Type: “Desktop”, Switching.
Input: 100 or 240 VAC, 47/63 Hz; General Purpose IEC 320 socket, Class I Power Inlet for straight cable entry.
Output: +18 VDC, 1 Amp, 2.5mm center positive plug.
Dimensions: 8.65 cm long by 4.7 cm wide by 3.2 cm high.
Weight: 0.173kg

Dosimetry Detectors:
Quantity: 223 solid state detectors
Type: Radiation hardened diodes
Sensitivity: 32 nC/Gy
Active Detector Size: 0.8 mm x 0.8 mm

Spacing:
4 mm on Y axis
5mm on X axis
8mm on “off axis arrays”

Array length:
Y = 9.8 cm
X = 53.0 cm
Off axis orthogonal to X axis, length =:
9.8 cm at X = ±5, ±10, ±15 cm, and
8.0 cm at X = ±19 cm

Inherent Buildup:
Acrylic plate, Mylar overlay, Diode packaging
0.77 cm distance from overlay top to active diode junction
1.0 g/cm2 water equivalent

Backscatter:
Acrylic, 2.3 cm

Radiation Measured:
Photon, Co-60 to 25 MV
Electron, 6 MeV to 25 MeV

Beam Limits:
Maximum dose, 350 cGy

Calibration:
Wide Field method employing rotation and translation substitution analysis, provided in the Windows PC application.