spinthariscope
Definition
Noun: A spinthariscope is a scientific instrument used to observe the scintillations (tiny flashes of light) produced by alpha particles when they strike a phosphorescent screen. It was historically used to demonstrate and study radioactivity.
Usage Examples
- (The instrument detects individual alpha particle impacts.)
- (It was a teaching tool for radioactivity.)
Advanced Usage
"to view through a spinthariscope": to look at the scintillations produced by radioactive material.
- Students took turns viewing through the spinthariscope to see the tiny sparkles. (They observed the alpha particle flashes firsthand.)
"the spinthariscope's phosphorescent screen": the part of the device that glows when struck by alpha particles.
- The spinthariscope's phosphorescent screen must be kept in darkness to see the flashes clearly. (The screen needs a dark environment for visibility.)
Variants and Related Words
Spinthariscopic (adj): relating to or using a spinthariscope.
- The spinthariscopic observations confirmed the presence of radioactive material. (Observations made with the device.)
Spinthariscopy (n): the technique or process of using a spinthariscope.
- Early spinthariscopy helped pioneer the study of nuclear physics. (The method of observation.)
Synonyms
- Scintillation counter (n): a modern device that detects and counts flashes of light from radiation.
- Alpha particle detector (n): a device that measures alpha radiation.
Related Idioms