Guides
Reference material
A test procedure states what to do; the standard it belongs to states what passes. These guides cover what sits underneath both, and applies whichever instrument class you are evaluating — which quantity is being measured, which reference field the measurement was made in, what the uncertainty is doing, and how to read the result.
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Type testing, calibration and routine checks
Three activities that are easy to confuse because they use the same reference fields, and the different question each one answers.
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Ambient and directional dose equivalent
Which operational quantity an instrument declares determines its reference quality and every relative response computed from it.
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Reference radiation qualities
The reference fields the tests are performed in, how they are designated, and why mean energy alone does not identify a quality.
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Detector technologies in photon dose rate meters
How each detector type converts radiation to an indication, and which type tests it typically finds hardest.
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Measurement uncertainty in the evaluation
What the ± value alongside each result represents, how it propagates, and its deliberate exclusion from the acceptance decision.
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Environmental and electrical influence quantities
The non-radiological conditions that change an instrument's indication, and how their effect is tested and reported.
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Dose rate meters in pulsed radiation fields
The pulse structure that defeats counting detectors, the arithmetic of the ceiling it imposes, and the evidence an instrument needs before use in such a field.