Assertion: gamma ray's source | /r/HasProperty | less than 10mm
Facets:
value: due to attenuation in air
type: CAUSE
value: from the detector
type: OTHER
Source sentences:
text: The efficiency reduction for alpha is due to the attenuation effect of the end window, though distance from the surface being checked also has a significant effect, and ideally a source of alpha radiation should be less than 10mm from the detector due to attenuation in air.
text: The efficiency reduction for alpha is due to the attenuation effect of the end window, though distance from the surface being checked also has a significant effect, and ideally a source of alpha radiation should be less than 10mm from the detector due to attenuation in air.