spark chamber
Definition
Noun: A spark chamber is a scientific instrument designed to detect and make visible the paths of ionizing radiation and elementary particles. It operates by creating a series of electrical sparks along the trail of ionization left by a charged particle as it passes through a gas-filled chamber.
Usage
The term "spark chamber" is used specifically in the context of experimental physics and particle detection. It refers to the physical apparatus itself. * The research team used a spark chamber to track cosmic rays. * Early evidence for some subatomic particles was obtained using a spark chamber.
Advanced Usage
- Spark chamber technology was a precursor to more modern particle detectors like wire chambers and drift chambers.
- In historical descriptions of experiments, one might refer to spark chamber data or spark chamber photographs of particle tracks.
Variants and Related Words
- Spark counter (n): A simpler, related device that counts particles by detecting the sparks they induce.
- Wire chamber (n): A later evolution of the particle detector that uses a grid of wires to electronically record particle positions.
- Particle detector (n): The general category of instruments that includes spark chambers, cloud chambers, and bubble chambers.
Synonyms
- Particle detector (this is a broader category)
- Track chamber (a general term for detectors that visualize particle paths)
Related Terms and Phrases
- Ionizing radiation: The type of radiation (e.g., alpha particles, beta particles) that a spark chamber detects.
- Elementary particle: A fundamental particle, such as an electron or muon, whose path can be revealed by a spark chamber.
- Triggered spark chamber: A version where the spark mechanism is activated only when other detectors signal a particle event.
Noun
-
an instrument that detects ionizing radiation from elementary particles
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