= Beta function (accelerator physics)
{wiki=Beta_function_(accelerator_physics)}
In accelerator physics, the term "beta function" (often denoted as \\(\\beta\\)) refers to a parameter that characterizes the optics of a charged particle beam as it propagates through a particle accelerator. Specifically, it describes the transverse beam size and how it evolves along the accelerator. The beta function is crucial for understanding the focusing properties of the accelerator and is essential in designing beam lines and cavities for optimal particle beam performance.
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