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collimators

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Published: 01 January 1986
Fig. 1 Basic methods of collimating x-rays. (a) Slit and pinhole collimation. (b) Kratky collimation using beam stops B1, B2, and B3. (c) Curved mirror focusing camera. Source: Ref 5 More
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001763
EISBN: 978-1-62708-178-8
... Abstract This article presents the experimental and theoretical aspects of small-angle scattering, and discusses specific applications used in the characterization of metals, glasses, polymers, and ceramics. The basic methods of collimating x-rays, the cause of smearing from a line source...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006455
EISBN: 978-1-62708-190-0
... of plates, cylinders, and flanges. The article discusses various control methods, including the use of lead screens; protection against backscatter and scatter from external objects; and the use of masks, diaphragms, collimators, and filtration. The radiographic appearance of specific types of flaws is also...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006448
EISBN: 978-1-62708-190-0
...: use of lead screens; protection against backscatter and scatter from external objects; and use of masks, diaphragms, collimators, and filtration. The article concludes with a discussion on image conversion media, including recording media, lead screens, lead oxide screens, and fluorescent intensifying...
Image
Published: 15 December 2019
Fig. 11 Schematic diagrams of (a) double-crystal topography with a curved sample in which only a small part of the sample fulfills the Bragg condition, and (b) curved collimator topography in which the collimator curvature is adjusted to compensate for sample curvature, resulting in the whole More
Image
Published: 01 January 2001
Fig. 35 Comparison of radiography and computed tomography (a) Conventional projection radiography. (b) CT using slit collimation More
Image
Published: 01 August 2018
Fig. 32 Example of an in-motion radiography facility showing (a) the facility, (b) a closeup of the source robot, and (c) the collimator and slits More
Image
Published: 01 August 2018
Fig. 35 Comparison of radiography and computed tomography. (a) Conventional projection radiography. (b) Computed tomography using slit collimation More
Image
Published: 01 January 2001
Fig. 32 Example of an in-motion radiography facility showing (a) the facility, (b) a close-up of the source robot, and (c) the collimator and slits More
Image
Published: 15 June 2020
Fig. 5 Schematic of laser-based directed-energy deposition head. A transmissive focusing optic focuses an incoming collimated beam for processing. More
Image
Published: 15 June 2020
Fig. 5 Three-dimensional-printed selective-laser-melted tungsten preclinical x-ray system collimator. Courtesy of M&I Materials More
Image
Published: 15 December 2019
Fig. 12 Schematic diagram illustrating the general configuration of a scanning monochromator. The monochromator is comprised of a concave mirror to collimate the incident light onto a plane grating, a second concave mirror to focus the dispersed light onto the secondary slit More
Image
Published: 01 January 1986
Fig. 8 Geometry of the Bragg-Brentano diffractometer. F, line source of x-rays from the anode of the x-ray tube; P, soller slits (collimator); D, divergent slit; A, axis about which sample and detector rotate; S, sample; R, receiving slit; RP, receiving soller slits; SS, scatter slit More
Image
Published: 15 December 2019
Fig. 10 Geometry of the Bragg-Brentano diffractometer. F, line source of x-rays from the anode of the x-ray tube; P, Soller slits (collimator); D, divergent slit; A, axis about which sample and detector rotate; S, sample; R, receiving slit; RP, receiving Soller slits; SS, scatter slit More
Image
Published: 01 January 1986
Fig. 7 Wavelength-dispersive x-ray spectrum of AISI type 347 stainless steel. Philips PW-1410 sequential x-ray spectrometer; molybdenum x-ray tube, 30 kV, 30 mA; P-10 flow proportional detector; LiF(200) analyzing crystal; fine collimation; 100 kcps full scale More
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Published: 15 December 2019
Fig. 12 Wavelength-dispersive x-ray spectrum of AISI type 347 stainless steel. Philips PW-1410 sequential x-ray spectrometer; molybdenum x-ray tube, 30 kV, 30 mA; P-10 flow-proportional detector; LiF(200) analyzing crystal; fine collimation; 100 kcps full scale More
Image
Published: 15 June 2020
) tungsten x-ray collimator, (g) super duplex stainless steel petrochemical flange, and (h) titanium implant More
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005630
EISBN: 978-1-62708-174-0
... used. These lens elements can be reflective or transmissive. Collimator focal lengths of 60, 75, 100, 120, 150, and 200 mm are common. Focus lenses range from 100, 125, 150, 200, 250, to 300 mm. Even longer focal lengths are used in remote welding ( Ref 6 ). The economic availability of these optics...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006583
EISBN: 978-1-62708-290-7
... systems Selective laser melting (SLM) Mo Hardness and compressive strength can match the properties of material produced by conventional PM Tensile/bending strength severely limited by microcracks ++ ++ + Commercial production W ++ ++ + X-ray collimators in production Microparts demonstrated...
Image
Published: 01 August 2018
cannot be employed in a valid manner. By way of comparison, in the case of SLAM, because collimated energy is used, the edge effect is minor and limited only by diffraction of the illumination wave at the edges (also shown in side view, upper figure, and top view, lower figure). More