Lead-paint detector

Details Lead-paint detector Lead-paint detector

1993-07-23

1995-02-14

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Fluorescence

378 44, 378 50, G01N 23223

Patent

active

053902297

ABSTRACT:
A new type of X-ray fluorescence detector of lead paint is disclosed that utilizes the measured intensities of fluorescent L.sub..alpha. and L.sub..beta. x-ray lines of lead to determine the absolute concentration of lead in mg/cm.sup.2, independent of either the thickness or the nature of the covering layers non-lead paint. The lead-paint detector uses a source of initiating photons whose energy is in a specific range, a detector of the characteristic lead L x-rays with sufficient energy resolution to detect the L.sub..alpha. and L.sub..beta. rays separately, a signal processor, and an appropriate read-out. The lead-paint detector will improve the rapidity and accuracy of lead paint measurements in a very cost-effective manner.

REFERENCES:
patent: 4845729 (1989-07-01), Rosen et al.

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