arXiv subjects

N. Jearnkulprasert

Publications and source records attributed to N. Jearnkulprasert.

2 recordsLinked to original sources

arXiv2004

Explicit expression for the photon number emission in synchrotron radiation

An explicit and remarkably simple one-dimensional integral expression is derived for the mean number $ $ of photons emitted per revolution in synchrotron radiation. The familiar high-energy expression $5πα/\sqrt{3(1-β^2)}$, printed repeatedly in the literature, is found to be inaccurate and only truly asymptotic with relative errors of 160%, 82% for $β=0.8$, 0.9, respectively. A new improved high-energy expression for $ $ is given.

physics.acc-ph↗

arXiv2004

Photon number emission in synchrotron radiation: Systematics for high-energy particles

A recent derivation of an explicit elementary expression for the mean number $ $ of photons emitted per revolution in synchrotron radiation allows a systematic high-energy analysis leading to the result $ \simeq 5πα/\sqrt{3(1-β^2)}+a_0α+πα\sqrt{1-β^2}/10\sqrt{3}$ where $a_0$ is a constant, with relative errors of 2.2%, 0.64%, 0.017%, in comparison to the well-known formula tabulated in the literature of 160%, 82%, 17% for $β=0.8$, 0.9, 0.99, respectively.

hep-ph↗