Cockcroft-Walton accelerator
Noun: A Cockcroft-Walton accelerator is a type of high-voltage particle accelerator. It operates by using rectifiers to charge capacitors, which then discharge to create a high-voltage direct current (DC) potential. This potential difference drives charged particles (such as protons or electrons) through an accelerating tube, increasing their kinetic energy.
This term is a highly specific technical noun used in the fields of nuclear physics and particle accelerator engineering. It refers to the specific machine design invented by John Cockcroft and Ernest Walton.
- The first successful artificial splitting of an atomic nucleus was achieved using a Cockcroft-Walton accelerator.
- Early nuclear physics experiments relied on the high DC voltage produced by a Cockcroft-Walton accelerator.
- While largely superseded by more powerful designs, the Cockcroft-Walton accelerator remains a historically important device for understanding accelerator principles.
- The term is often used in historical or pedagogical contexts to describe the foundational technology of electrostatic particle acceleration.
- It may be abbreviated as Cockcroft-Walton generator or voltage multiplier when discussing its electrical circuit function outside of particle acceleration.
- Cockcroft-Walton generator: Emphasizes the high-voltage DC power supply aspect of the machine.
- Electrostatic accelerator: A broader category of particle accelerators that use static electric fields, which includes the Cockcroft-Walton design.
- Voltage multiplier: The name for the specific electrical circuit (a cascade of diodes and capacitors) that forms the core of the machine.
- Electrostatic generator (in this specific context)
- Cascade generator (less common)
The term refers exclusively to the machine invented by Cockcroft and Walton. It is not a general term for any particle accelerator. Its primary meaning is tied to its specific historical design and method of generating high voltage for particle acceleration.
- a high-voltage machine in which rectifiers charge capacitors that discharge and drive charged particles through an accelerating tube