X-ray or gamma ray systems or devices – Specific application – Diffraction – reflection – or scattering analysis
Patent
1982-07-09
1984-11-20
Smith, Alfred E.
X-ray or gamma ray systems or devices
Specific application
Diffraction, reflection, or scattering analysis
378 34, 378 49, 378 53, 378119, G01T 136, G01T 700, G01N 2320, H01J 3902
Patent
active
044843399
ABSTRACT:
Apparatus for providing X-rays (11) to an object (12) in air. A lens (13) directs energy (14) from a laser (27) onto a target (15) to produce X-rays (11) of a selected spectrum and intensity. A substantially fluid-tight first enclosure (16) around the target (15) has a pressure therein substantially below atmospheric pressure. An adjacent substantially fluid-tight second enclosure (18) contains helium (24) at about atmospheric pressure. A wall (19) has an opening (20) large enough to permit X-rays (11) to pass through and yet small enough that gas (21) can be evacuated from the first enclosure (16) at least as fast as it enters through the opening (20) at the desired pressure. Intermediate enclosures (34, 34') at logarithmically increasing air pressures have similar openings (20', 20") in line with the opening (20) and a transparent portion (36) in the near wall (35) of the second enclosure (18). The target (15) is located close to the opening (20) and emits a substantial portion of the X-rays (11) through the opening (20) and (via 20',20",36) on toward the far wall (22) of the second enclosure (18) having a portion (25) that is highly transparent to them, so that the object (12) to which the X-rays (11) are to be provided may be located outside the second enclosure (18) and adjacent thereto and thus receive the X-rays (11) substantially unimpeded by air or other undesired intervening matter.
REFERENCES:
patent: 2899556 (1959-08-01), Schopper et al.
patent: 2908821 (1959-10-01), Schumacher
patent: 3585349 (1971-06-01), Kalbfell
patent: 4185202 (1980-01-01), Dean et al.
Epstein Harold M.
Mallozzi Philip J.
Battelle Development Corporation
Dunson Philip M.
Grigsby T. N.
Smith Alfred E.
LandOfFree
Providing X-rays does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Providing X-rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Providing X-rays will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2193964