Sample module with sample stream spaced from window, for...

Details Sample module with sample stream spaced from window, for... Sample module with sample stream spaced from window, for...

2009-02-24

2011-11-01

Yun, Jurie (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Fluorescence

Reexamination Certificate

active

08050382

ABSTRACT:
An x-ray analysis system with an x-ray source for producing an x-ray excitation beam directed toward an x-ray analysis focal area; and a sample chamber for presenting a fluid sample to the x-ray analysis focal area. The x-ray excitation beam is generated by an x-ray engine and passes through an x-ray transparent barrier on a wall of the chamber, to define an analysis focal area within space defined by the chamber. The fluid sample is presented as a stream suspended in the space and streaming through the focal area, using a laminar air flow and/or pressure to define the stream. The chamber's barrier is therefore separated from both the focal area and the sample, resulting in lower corruption of the barrier.

REFERENCES:
patent: 3980882 (1976-09-01), Carr-Brion et al.
patent: 7072439 (2006-07-01), Radley et al.
patent: 7477724 (2009-01-01), Meier et al.
patent: 0916940 (2004-09-01), None
patent: 1482302 (2004-12-01), None
patent: 11-211679 (1999-08-01), None
PCT International Search Report and Written Opinion of the International Searching Authority for International Application No. PCT/US2009/034982, dated Oct. 15, 2009.

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