beta gage

beta gage

[′bād·ə ‚gāj]
(nucleonics)
A penetration-type thickness gage that measures the absorption of beta rays in the sample. Also known as beta-absorption gage.
Mentioned in ?
References in periodicals archive ?
For example, one can say a variation of 3% is obtainable when what is meant is that the variation between spiral ports on the die is [+ or -] 3%, while over the full die a total variation of [+ or -] 7% can be measured by a Beta gage.
As a rule of thumb, the percent variation using a Beta gage is twice that of a mechanical gage.
Measurement method: 25 microns LDPE film; two sigma statistical limits; Beta gage on-line measurement; 10-millisecond time constant; fine line sensing; minimum software filtering.