1-20 of 130 Search Results for

energy dispersive X-ray detectors

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 December 1998
Fig. 5 Schematic of energy dispersive x-ray detector. Detector measures the energy of each incoming x-ray photon by counting the number of electron-hole pairs it produces. A histogram is then developed and plotted of the x-ray energies of the many (typically tens to hundreds of thousands More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003252
EISBN: 978-1-62708-199-3
..., namely scanning electron microscopy, electron probe microanalysis, and transmission electron microscopy. It briefly describes the operating principles, instrumentation which includes energy dispersive X-ray detectors, spatial resolution, typical use of the techniques, elemental analysis detection...
Image
Published: 01 January 1986
Fig. 3 Schematic diagram of the detector of an energy-dispersive x-ray spectrometer. Source: Ref 9 More
Image
Published: 01 January 2002
Fig. 64 Energy-dispersive x-ray spectra (windowless detector, 20kV electron beam) for (a) hot tear zone and (b) overload fracture zone More
Image
Published: 30 August 2021
Fig. 43 Energy-dispersive x-ray spectra (windowless detector, 20 kV electron beam) for (a) hot tear zone and (b) overload fracture zone More
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003250
EISBN: 978-1-62708-199-3
... above. Wavelength Dispersive Versus Energy Dispersive Detectors The x-rays emitted from the sample in an XRF spectrometer are detected and analyzed in one of two ways: wavelength dispersive or energy dispersive analysis. In wavelength dispersive instruments, the emitted x-ray beam is directed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... on the operating principles and applications of detectors for x-ray spectroscopy, namely energy-dispersive spectrometers, wavelength-dispersive spectrometers, and handheld x-ray fluorescence systems. The processes involved in x-ray analysis in the SEM and handheld x-ray fluorescence analysis are then covered...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001733
EISBN: 978-1-62708-178-8
... detectors, have resulted in modified x-ray spectrometer designs. Modern energy-dispersive instrumentation facilitates qualitative identification of elements in various samples. The information content of an energy dispersive x-ray spectrum is among the highest obtainable from inorganic materials in a single...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003755
EISBN: 978-1-62708-177-1
..., special SE and BE detectors (gaseous SE detector and gaseous BE detector), which use gas ionization to detect and amplify the signal, are necessary. In addition to the main components of a scanning electron microscope described previously, most instruments are equipped with an energy-dispersive x-ray...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001768
EISBN: 978-1-62708-178-8
... diagram of the detector of an energy-dispersive x-ray spectrometer. The detector consists of a crystal of silicon that is biased by means of electrodes placed on the front and rear surfaces. The photoelectron scattering in the silicon creates free electron-hole pairs in the band structure...
Book Chapter

By S. Lampman
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006645
EISBN: 978-1-62708-213-6
...), the WDS detector can identify the peak intensities in the x-ray spectrum. The spectrum of x-ray energies and intensities also can be measured by an energy-dispersive spectrometer (EDS), where the energy of individual photons is converted into electronic pulses that are processed and counted...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006666
EISBN: 978-1-62708-213-6
... these energy-loss criteria. Such thin-target analysis was not normally performed before development of intrinsic germanium, lithium-doped germanium, and lithium-doped silicon energy-dispersive x-ray detectors, because wavelength-dispersive x-ray detection is highly inefficient and generally uses more massive...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001734
EISBN: 978-1-62708-178-8
..., such as thin air filters and powdered biological and geological samples, that meet these energy-loss criteria. Such thin-target analysis was not normally performed before development of intrinsic germanium, lithium-doped germanium, and lithium-doped silicon energy dispersive x-ray detectors, because wavelength...
Image
Published: 15 December 2019
Fig. 14 Schematic diagrams of silicon-lithium semiconductor x-ray detector used in an energy-dispersive x-ray spectrometer More
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006638
EISBN: 978-1-62708-213-6
... electrode. The quantity of electrons collected at the positively charged electrode constitutes a charge that is proportional to the energy of the photon. Fig. 7 Principle of the semiconductor silicon drift detector energy dispersive x-ray spectrometer (SDD-EDS) with the spectrum of YBa 2 Cu 3 O 7...
Image
Published: 15 December 2019
Fig. 7 Principle of the semiconductor silicon drift detector energy dispersive x-ray spectrometer (SDD-EDS) with the spectrum of YBa 2 Cu 3 O 7 -0.4wt%Al More
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005685
EISBN: 978-1-62708-198-6
.... These methods include light microscopy, scanning electron microscopy, atomic force microscopy, energy-dispersive X-ray spectroscopy, Auger electron spectroscopy, secondary ion mass spectrometry, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. atomic force...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001767
EISBN: 978-1-62708-178-8
... probe microanalyzer. Two types of x-ray detectors are used: wavelength-dispersive spectrometers and energy-dispersive spectrometers. Most scanning electron microscopes are currently being equipped with energy-dispersive detectors. The energy-dispersive detector is limited to analysis of elements...
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
... Abstract Digital radiography is a technique that uses digital detector arrays (linear or area) to capture an X-ray photonic signal and convert it to an electronic signal for display on a computer. This article begins with an overview of real-time radiography and provides a schematic...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006643
EISBN: 978-1-62708-213-6
... characteristics. However, electronic detectors measure photon properties, with intensity measurements usually reported as counts. Most commercial x-ray sources use a high-energy (50 kV) electron beam directed into a cooled metal target. As the electrons are decelerated in the target, several events produce x...