Radiation Safety Considerations

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Presentation transcript:

Radiation Safety Considerations Ambient dose equivalent rate at a transverse distance of 50cm to the beam axis: cooling times in hours at the dump: < 200 mrem/h average in the aisle: < 1 mrem/h

Radiation Safety Considerations Cooling time scaling factors: cooling time scaling factor (hours) 0.1 1.0 0.2 0.75 0.5 0.39 1.0 0.26 10 0.11 100 0.005

Radiation Safety Considerations Exchange of samples: 4 days of continuous operation at 100 W 6 minutes of cooling time duration dose rate accumulated dose 1. Access to dump 1 minute 1 mrem/h 0.017 mrem 2. Exchange of samples 20 seconds 200 mrem/h 1.1 mrem 3. Exit from dump 1 minute 1 mrem/h 0.017 mrem Total accumulated dose (one person) : 1.2 mrem (Two sample exchanges are expected per day.) (to be reviewed for radiation safety)

Radiation Safety Considerations Removal of dump: 4 days of continuous operation at 100 W 10 hours of cooling time duration dose rate accumulated dose 1. Access to dump 1 minute 0.1 mrem/h 0.0017 mrem 2. Removal of dump 10 minutes 20 mrem/h 3.3 mrem 3. Exit from dump 1 minute 0.1 mrem/h 0.0017 mrem Total accumulated dose (one person) : 3.3 mrem (to be reviewed for radiation safety)