ORTEC radEAGLE - Page 133

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radEAGLE User Manual Troubleshooting

b) After calibration, the instrument should have the potassium 1460 keV line well

within ±0.25 (between 1457 keV and 1463 keV).

c) Using an external cesium calibration source: Place the source in front of the de-

tector at a minimum distance of 10 cm. Enter calibration check and wait for the

threshold sum of the peak counts to be collected. The system will then show

you the report of the peak properties. The resolution should not be greater

than 7.3 %. The peak position deviation should not be greater than 0.5 % af-

ter startup, corresponding to a shift of ±3.3 keV around the target value of

661.6 keV.

d) If the peak position deviates, press Cal to calibrate the instrument. Repeat

the acquisition of the cesium reference in calibration mode and wait until new val-

ues for the peak assessment appear. The peak should be positioned well within

0.2 %, ±1.7 keV of the target peak position of 661.6 keV.