Gamma Irradiator Systems

Hopewell Designs, Inc. offers several industry-leading gamma beam irradiators. These easy-to-use systems will measurably increase efficiency and accuracy in a variety of user applications. Each irradiator produces gamma radiation beams of variable intensity for exposing objects to gamma rays from Cesium-137 and Cobalt-60 sources. These systems are available with manual operation using electronic controllers, or with full automation that includes computer control, auto set-up, automated irradiator calibration and more.

Model G10 Gamma Beam Irradiator

The Model G10 Gamma Beam Irradiator is well suited for health physics instrument calibration. The horizontal free-in-air radiation beam provides uniform and precision dose rates. The ISO-4037 collimator minimizes scatter. With 2 sources and the attenuator set, the dose rate can range over six orders of magnitude.

A simple design and quality manufacturing assure this system will operate reliably for decades**. The system may be controlled by a computer or an electronic controller (PLC+HMI). There are six configurations to choose from based on source quantity and size.

**Highly reliable calibration system that is field-proven through tens of thousands of hours of use without failure.

Model GC 60 Gamma Beam Irradiator

The Model GC60 Gamma Beam Irradiator is well suited for instrument calibration. The horizontal free-in-air radiation beam provides uniform and precision dose rates. The ISO-4037 collimator minimizes scatter. With a capacity for 6 sources, it offers the maximum flexibility in configuration and future expansion. Sources can easily be added and changed at a future date. The system may be controlled by a computer or an electronic controller (PLC). Three configurations are available based on source size.

Model DS20 Panoramic Irradiator

The Model DS20 Panoramic irradiator provides a 360° radiation field for irradiating personnel dosimetry. A Cesium-137 source is available from 50 mCi to 10 Ci. The system comes complete with radiation sources, shielded enclosure, exposure position, rotating turntable, and control panel.

Model GI-AM241 Irradiator

The Model GI-Am241 irradiator is used for testing instruments at low energy. The Am-241 source has an energy at 60 kV as opposed to Cs-137 at 662 kV or Co-60 at 1.2 MeV.

The Am-241 source capsule is shaped as a disc, similar to a coin, to optimize the dose rate for this low energy gamma emitter. The Model GI-Am241 gamma beam irradiator can hold a single Am-241 source or an array of multiple sources on a source rod that is raised vertically to lift it out of its shield to the exposed position.

While the Model GI-AM241 irradiator is offered as a stand alone system, it is typically mounted at the opposite end of our linear positioning system from the primary irradiator system (G10, GC60, etc.) and is controlled by the primary irradiator’s control system. For computer controlled systems, selecting the Am-241 source flips the positioning track’s reference scale to show the distance from the center of the instrument platform to the center of the Am-241 source

Model WI-90 Well Irradiator

The Model WI90 Well Irradiator provides a vertical radiation beam for quickly calibrating radiation detection instruments. When high instrument throughput is required, the WI-90 gives an easy and quick access to instruments for adjustment, while keeping exposure rates low to personnel. The system comes complete with radiation source, shielded enclosure, source elevator, attenuator, safety interlocks, and control panel.

Model G100 Teletherapy Level Irradiator

The Model G100 Teletherapy Level Gamma Beam Irradiator is a therapy-level irradiation system for performing measurements and calibrations. The G100 replaces several legacy systems which are no longer supported. The G100 combines the well-known and understood capabilities and features of legacy systems with numerous state-of-the art design upgrades including a horizontal beam for flexible measurement options, pneumatically-actuated source exposure, and a fail-safe, easily maintainable design.