What does ESCA mean?

Definitions for ESCA
es·ca

This dictionary definitions page includes all the possible meanings, example usage and translations of the word ESCA.


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Wiktionary

  1. escanoun

    fleshy growth from an anglerfish's head that acts as a lure

Wikipedia

  1. ESCA

    X-ray photoelectron spectroscopy (XPS) is a surface-sensitive quantitative spectroscopic technique based on the photoelectric effect that can identify the elements that exist within a material (elemental composition) or are covering its surface, as well as their chemical state, and the overall electronic structure and density of the electronic states in the material. XPS is a powerful measurement technique because it not only shows what elements are present, but also what other elements they are bonded to. The technique can be used in line profiling of the elemental composition across the surface, or in depth profiling when paired with ion-beam etching. It is often applied to study chemical processes in the materials in their as-received state or after cleavage, scraping, exposure to heat, reactive gasses or solutions, ultraviolet light, or during ion implantation. XPS belongs to the family of photoemission spectroscopies in which electron population spectra are obtained by irradiating a material with a beam of X-rays. Chemical states are inferred from the measurement of the kinetic energy and the number of the ejected electrons. XPS requires high vacuum (residual gas pressure p ~ 10−6 Pa) or ultra-high vacuum (p < 10−7 Pa) conditions, although a current area of development is ambient-pressure XPS, in which samples are analyzed at pressures of a few tens of millibar. When laboratory X-ray sources are used, XPS easily detects all elements except hydrogen and helium. The detection limit is in the parts per thousand range, but parts per million (ppm) are achievable with long collection times and concentration at top surface. XPS is routinely used to analyze inorganic compounds, metal alloys, semiconductors, polymers, elements, catalysts, glasses, ceramics, paints, papers, inks, woods, plant parts, make-up, teeth, bones, medical implants, bio-materials, coatings, viscous oils, glues, ion-modified materials and many others. Somewhat less routinely XPS is used to analyze the hydrated forms of materials such as hydrogels and biological samples by freezing them in their hydrated state in an ultrapure environment, and allowing multilayers of ice to sublime away prior to analysis.

Suggested Resources

  1. ESCA

    What does ESCA stand for? -- Explore the various meanings for the ESCA acronym on the Abbreviations.com website.

Anagrams for ESCA »

  1. Aces

  2. aces

  3. æsc

  4. ASCE

  5. CASE

  6. case

How to pronounce ESCA?

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Numerology

  1. Chaldean Numerology

    The numerical value of ESCA in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of ESCA in Pythagorean Numerology is: 1

Popularity rank by frequency of use

ESCA#100000#105915#333333

Translations for ESCA

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"ESCA." Definitions.net. STANDS4 LLC, 2024. Web. 19 Mar. 2024. <https://www.definitions.net/definition/ESCA>.

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