Model G10 Gamma Beam Irradiator
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The Model G10 Gamma Beam Irradiator provides a horizontal radiation beam for calibrating radiation detection instruments and irradiating personnel dosimetry. The irradiator system includes the following:	Model G10 Gamma Beam Irradiator with optional LPS (X, Y, Z, and R axes) and Instrument Camera
One or two Cesium-137 sources (10 mCi to 2200 Ci) Shielded enclosure Beam collimator Safety Interlocks Electronic Control Panel
Optional equipment includes the following:
Attenuators Linear Positioning System (LPS) Computer control Instrument Camera Laser Alignment System
Radioactive Sources
Doubly encapsulated, hermetically sealed, special form Cesium-137 Fully surrounded by lead and tungsten in the shielded position Tungsten shielding above and below the source limit axial radiation Tungsten shielding between sources in dual source systems to minimize cross-talk Pneumatic exposure control mechanism Stainless steel and tungsten control rod Position continuously monitored by sensors on the pneumatic system Standard sizes: 10, 50, 100, or 500 mCi; 1, 5, 10, 20, 30, 50, 100, 200, 450, 1200, or 2200 Ci
Shielded Enclosure	Computer Control System
Steel encased lead shielding surrounds path to exposed position as well as shielded position Beam centerline 1 meter above floor Tungsten rectangular collimator confines beam to 30º solid angle Exposure rate less than 5 mR/hr at 12" (30 cm) from the shield surface Shield size depends on source(s); overall system size 30" (76 cm) wide x 18" (46 cm) deep x 70" (178 cm) tall; 65" (165 cm) tall for single source systems
Safety System
Safety interlock system prevents exposure unless all safeguards are satisfied Status panels show radiation conditions at a glance Entire system meets or exceeds ANSI Standards N43.3 and NCRP 88
Control Panel	Electronic Control Panel
Controls for Expose, Return, Emergency Off Keyed Power Switch Electronic Control System includes the following: Indicators for Exposure Time and System Status Keypad to set Exposure Time and System Parameters Up to 900,000 seconds (10.4 days) exposure time Computer Control System includes the following: Automated control of Linear Positioning System (LPS) On-screen indicators for Exposure Time, System Status, LPS Position Keyboard and Mouse (optional Touch-screen) inputs Exposure Rate Calculator Automated Irradiator Calibration Database for Exposure history
Ancillary Equipment	0 - 8000x Attenuator Set
Linear Positioning System (LPS) with any combination of up to four axes: X - parallel to the beam - up to 10 meters (33 feet) Y - horizontal perpendicular to the beam Z - vertical R - rotary Collimators for custom beam configuration Attenuators: the standard computer-controlled set of four lead attenuators (x2, x4, x10, x100) provides 16 different levels of attenuation from None to 8000x
Installed Example(s): University of Wisconsin
Hopewell Designs, Inc. 5940 Gateway Drive, Alpharetta, GA 30004 770-667-5770 / FAX 770-667-7539 sales@hopewelldesigns.com