The exact result for non-relativistic quadrupole bremsstrahlung in a Coulomb field was established only recently Pradler & Semmelrock (2020). It requires the evaluation and integration of hypergeometric functions across wide range parameters arguments, which, practice, is unfeasible. Here we provide highly accurate tabulation Gaunt factor radiation, its thermal average Maxwellian plasma, associ...

Introduction The Advanced Photon Source (APS), as well as other third-generation synchrotron light sources, uses permanent magnets in the insertion devices to produce x-rays for scientific research [1,2]. When placed in a high-energy storage ring, these permanent magnets are subjected to irradiation from synchrotron radiation, high-energy bremsstrahlung, and bremsstrahlung-produced neutrons. Pr...

Since 22nd October 2012 the synchrotron light source BESSY is operated in top-up mode. Losses of electrons during injection cause an electromagnetic cascade, that consists of high energetic photons of the bremsstrahlung, and secondary electrons and positrons from the pair creations. The bremsstrahlung spectrum has a maximum at 1.022 MeV owing to pair creations. The spectrum has a high energetic...

X-ray generation via synchrotron radiation and bremsstrahlung in the interaction of short laser pulses with a solid target is much current interest owing to its numerous applications. The efficiency energy conversion thus crucial factor. We found that mainly governed by ratio pulse width preplasma width, which turn profile, intensity, spot size. Synchrotron dominates when less than unity, other...

Although radio and optical observations have played an important role in identifying and characterizing supernova remnants (SNRs), most of the shock heated material is primarily visible in X-rays, having temperatures of typically 10 − 10 K. The emission mechanisms are bremsstrahlung and line radiation, but a number of remnants are now known to emit Xray synchrotron radiation from ultra-relativi...

A male patient in his 20s presented at our clinic with pain caused by bone metastases of the primitive neuroectodermal tumor, and Sr-89 was administrated to palliate the pain. After receiving the injection, the patient complained of a slight burning pain at the catheterized area. Slight reddening and small circular swelling (diameter, 0.5 cm) were observed at the catheterized area. Sr-89 extrav...

The theory of Generalized Bessel Functions is reviewed and their application to various problems in the study electro-magnetic processes presented. We consider cases emission bremsstrahlung radiation by ultra-relativistic electrons linearly polarized undulators, including also exotic configurations, aimed at enhancing harmonic content emitted radiation. analysis eventually extended generalizati...

With the increased interest in new PET tracers, gene-targeted therapy, immunoPET, and theranostics, other radioisotopes will be increasingly used in clinical PET scanners, in addition to (18)F. Some of the most interesting radioisotopes with prospective use in the new fields are not pure short-range β(+) emitters but can be associated with gamma emissions in coincidence with the annihilation ra...