Auger effect
Let an agent explain the Auger effect, relay mechanism, history, competition with fluorescence and applications from atomic physics and surface science sources with the naming history attributed, describe the Coster-Kronig case, and distinguish the Auger effect from X-ray fluorescence, the photoelectric effect, internal conversion and Auger recombination in semiconductors.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain the Auger effect, relay mechanism, history, competition with fluorescence and applications from atomic physics and surface science sources with the naming history attributed, describe the Coster-Kronig case, and distinguish the Auger effect from X-ray fluorescence, the photoelectric effect, internal conversion and Auger recombination in semiconductors.
A physical process in which an atom with an inner-shell vacancy relaxes when an electron from a higher level fills the vacancy and the released energy ejects another electron, the Auger electron, instead of emitting an X-ray photon, observed by Lise Meitner in 1922 and independently by Pierre Auger in 1923, after whom it is named, a naming that historians discuss; the registry alias Coster-Kronig transition names a special case where the vacancy is filled from a subshell of the same shell. The effect underlies Auger electron spectroscopy for surface analysis and competes with X-ray fluorescence, dominating for light elements.
What it is for: Understanding atomic relaxation and surface analysis.
It can be explain mechanism; relay history; describe the Coster-Kronig case; relay applications.
Distinguishing features
Three-electron process
Characteristic electron energies
Element-specific
Surface sensitive
What it looks like
Not visible; detected as electrons with characteristic energies in spectra.
Physical character
Meitner observation: 1922 year
Auger discovery: 1923 year - Pierre Auger
Auger yield: dominates over fluorescence for light elements note
How it is recognised
Non-radiative ejection of an electron after inner-shell vacancy
Coster-Kronig transition
X-ray fluorescence emits photons; the photoelectric effect ejects electrons by photon absorption; internal conversion involves nuclear energy; Auger recombination is a semiconductor process
Related models
is a kind of - in registry terms
is used in -
competes with -
includes -
In practice
Families and kinds
KLL and other Auger transitions
Coster-Kronig transitions
super Coster-Kronig transitions
interatomic Auger processes
Standards and regulation
ISO standards for Auger electron spectroscopy such as ISO 18118
Radiation safety rules for X-ray and electron sources
Failure modes and hazards
Misattributing discovery
Confusing with Auger recombination
Radiation safety in instruments
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What the Auger effect is.
Science.
Definition
Definition.
Definition
Definition.
- What is the Auger effect, and how does it differ from X-ray fluorescence, the photoelectric effect, internal conversion and Auger recombination? definition
- Is the question about physics, spectroscopy or semiconductors? boundary
Coster-Kronig
Coster-Kronig transition.
Coster-Kronig
Coster-Kronig.
- What is a Coster-Kronig transition? definition
- Which entry fits the specific transition? action
Physics Physics.
Science.
Mechanism
Mechanism.
Mechanism
Mechanism.
- How does the energy of the Auger electron depend on atomic levels? measurement
- Which references are standard? provenance
Yield
Fluorescence yield.
Yield
Yield.
- Why do light elements favour Auger emission over fluorescence? provenance
- Which sources are cited? provenance
History History.
Attribution.
Meitner
Meitner s observation.
Meitner
Meitner.
- What did Meitner report in 1922, and how do historians discuss the naming, with views attributed? provenance
- Is the presentation neutral and attributed? boundary
Auger
Pierre Auger.
Auger
Auger.
- How did Pierre Auger observe the effect in cloud chambers? provenance
- Which entry fits Pierre Victor Auger? action
Context Applications.
Context.
AES
Auger electron spectroscopy.
AES
AES.
- How is Auger electron spectroscopy used for surface analysis? provenance
- Which entry fits Auger electron spectroscopy? action
Medicine
Auger emitters in medicine.
Medicine
Medicine.
- How are Auger-emitting radionuclides studied for targeted therapy? provenance
- Is the information current? boundary
What the second pass must settle
- Should the Coster-Kronig transition be a separate entry?
- How should the Meitner-Auger naming history be presented?
- How should Auger energy databases be linked?