K Capture
| Formula / Notation | K capture: p + e⁻ → n + νₑ; also called electron capture (EC) |
|---|---|
| Also Known As | Electron capture (EC), K-electron capture, inverse beta decay |
What is K Capture?
A type of radioactive decay in which an inner-shell electron (from the K shell, the innermost electron shell) is captured by the nucleus, combining with a proton to produce a neutron and a neutrino. K capture decreases the atomic number by one and produces characteristic X-rays.
Formula & Notation
Other Names / Synonyms: Electron capture (EC), K-electron capture, inverse beta decay
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A type of radioactive decay in which an inner-shell electron (from the K shell, the innermost electron shell) is captured by the nucleus, combining with a proton to produce a neutron and a neutrino. K capture decreases the atomic number by one and produces characteristic X-rays.
K-capture nuclides are used in: calibrating X-ray detectors (characteristic X-ray emission), as sources of electron neutrinos for physics experiments, and in some medical diagnostic applications. ⁵⁷Fe K-capture produces ⁵⁷Mn, used in Mössbauer spectroscopy. ⁷Be undergoes K capture: ⁷Be + e⁻ → ⁷Li + …
K-capture radionuclides emit characteristic X-rays (low-penetration) and neutrinos (no biological effect). They are generally less hazardous than α or β emitters of similar activity but still require radiological safety protocols for all unsealed sources.
The formula or notation for K Capture is: K capture: p + e⁻ → n + νₑ; also called electron capture (EC)