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fluorescent intensifying screens

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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...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006459
EISBN: 978-1-62708-190-0
.... Moreover, radiation safety dictates viewing through leaded glass or indirectly by mirrors. Because of these limitations, other methods have been developed to improve safety and to amplify the images from fluorescent screens. One of the early systems (1950s) involved the development of image-intensifier...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003238
EISBN: 978-1-62708-199-3
... inspection involves viewing of a real-time image on a fluorescent screen or image-intensifier, the radiographic process is termed “real-time inspection.” When electronic, nonimaging instruments are used to measure the intensity of radiation, the process is termed “radiation gaging.” Tomography, a radiation...
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
.... The graininess of the images that are produced at high photon energies makes the inherently fine-grain films such as types 1 and 2 particularly useful at photon energies of 1 MeV or more. Another source of graininess occurs in radiography using fluorescent intensifying screens. The graininess seen...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005341
EISBN: 978-1-62708-187-0
..., an emulsifier is needed (following application of the penetrant) to make the penetrant soluble in water. Solvent-removable: These also have an oil base and employ a solvent for both precleaning and removal of excess penetrant. Each of the aforementioned systems uses either a visible or a fluorescent...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... laser scanning technology, where dimensional features of parts can be quickly digitized, quantified, and analyzed for variations due to deformation, denting, or other causes. Digitized images from optical laser scanning systems also extend to other NDE techniques, such as fluorescent penetrant...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001473
EISBN: 978-1-62708-173-3
... sections are thick, but at the sacrifice of image definition. Speed can be increased by replacing lead-intensifying screens that are in contact with the film with fluorescent ones, but this will result in a loss of definition. The radiographs are viewed as negatives. The highest contrast is attained...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.9781627081788
EISBN: 978-1-62708-178-8
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004215
EISBN: 978-1-62708-184-9
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006423
EISBN: 978-1-62708-192-4
... of lubricant pressure in the die inlet zone: (a) film height for hypothetical pressurized and unpressurized inlet zone; (b) drawing configuration model. Source: Ref 53 Passive action of the dies and active pressurizing of the lubricant with pressure intensifiers are used to increase static pressure...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001118
EISBN: 978-1-62708-162-7
... for specialty applications with unique and/or cost advantages over domestic products Word competition for scrap units will intensify based on the relative costs and availability of primary aluminum and scrap Developing Scrap Streams The traditional flow of scrap through the primary, consuming...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006383
EISBN: 978-1-62708-192-4
... for predictive maintenance in many closed-loop lubricating systems. Instead of extracting the debris from the oil, the whole oil sample is subjected to spectrographic analysis ( Ref 22 ). Atomic emission spectroscopy (AES) ( Ref 23 , 24 ), atomic absorption spectroscopy (AAS) ( Ref 24 ), and x-ray fluorescence...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.9781627082006
EISBN: 978-1-62708-200-6
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... for SCC may involve service stresses, but often the root cause can be attributed to manufacturing. For example, Fig. 5 shows the classic pattern of stress-corrosion crack branching in a type 316L stainless steel screen that was exposed to environment containing toluene (1000 to 2000 ppm), sulfur...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003043
EISBN: 978-1-62708-200-6
... from the gas molecules, forming free radicals that react with the surface to be treated and create sites for bonding. The glow associated with plasma treatment is a result of stripped electrons falling back to a lower energy state, emitting light as in neon bulbs, fluorescent bulbs, and lightning...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003068
EISBN: 978-1-62708-200-6
..., expressed in percent. observed after long-term continuous exposure out- autoclave molding. A process in which, after lay-up, doors. The laboratory exposure conditions are usually winding, or wrapping, an entire assembly is placed in a apparent specific gravity. The ratio of the weight of more intensified...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006956
EISBN: 978-1-62708-439-0
... ). Röntgen discovered this type of ray in late 1895 while running a high-voltage discharge tube inside of a thick black cardboard. The darkened chamber also enclosed a paper plate that was covered with barium platinocyanide, which fluoresced. With this discovery, he concluded that the discharge may...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005863
EISBN: 978-1-62708-167-2
... (e.g., portions of the inductor and the workpiece) intensify the appearance of the proximity effect. Figure 9 presents the results of computer modeling showing current density distribution and the proximity effect when two bus bars have currents flowing in opposite directions. The left bus was tilted...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
... meters: Housings, cams, gears, dials, and pressure plates Faucets: Underbodies, cartridges, stems, packing nuts, and waterways Water softeners: Pump housings, pistons, impellers, and valves Filters: Bodies, plates, screens, and sieves Pressure regulators: Bodies, stems, knobs...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006808
EISBN: 978-1-62708-329-4
... Evaluation and Quality Control , Volume 17 of the ASM Handbook , 1989). When the beam passes through a weldment, some of the radiation energy is absorbed, and the intensity of the beam is reduced. Variations in beam intensity are recorded on film or on a screen when a fluoroscope or an image intensifier...