Recent works focused on bremsstrahlung radiation as a non-invasive tool for monitoring proton beams used in radiobiology (>20 MeV). In order to study the validity of theoretical models cross sections, X-rays between 4 keV and 15 coming from carbon target irradiated by energy range MeV 50 were measured silicon drift detector. The obtained data vary 10 mb keV−1 1000 fit well literature with model...

A precise determination of absolute luminosity, using the bremsstrahlung process, at future Electron-Ion Collider (EIC) will be very demanding, and its three major challenges are discussed herein. First, rate suppression due to so-called beam size effect has well controlled. Secondly, impact huge synchrotron radiation fluxes should mitigated. Thirdly, enormous event rates, in excess 10 GHz, hav...

We show that a periodic metal-metal multilayer nanostructure can serve as an efficient source of hard x-ray transition radiation. Our research effort is aimed at developing an x-ray source for medical applications, which is based on using low-energy relativistic electrons. The approach toward choosing radiator-spacer couples for the generation of hard x-ray resonant transition radiation by few-...

In this study the distribution of the Bremsstrahlung radiation resulting from the absorption of f6 particles was evaluated immediately after the intra-articular injection into the knee of 90Y and subsequently at intervals over the next 3 days. The later results were compared with the original patterns in individual patients. In all the cases in this series the knee was immobilized immediately a...

A simple network of comparators applied to the strip signals of a cathode strip chamber allows quick hit localization to within a halfstrip width, or +/a quarter-strip. A six-plane chamber with 6.4 mm wide strips was tested in a high-energy muon beam. The chamber was placed behind a 30 cm thick iron block. We show that patterns of hits localized to within a halfstrip allowed us to identify 300 ...

We consider coherent electromagnetic processes for colliders with short bunches, in particular the coherent bremsstrahlung (CBS). CBS is the radiation of one bunch particles in the collective field of the oncoming bunch. It can be a potential tool for optimizing collisions and for measuring beam parameters. A new simple and transparent method to calculate CBS is presented based on the equivalen...

The upgrade of the HERA accelerator has provided much increased collider luminosity. In turn, the improvements have necessitated a new design for the ZEUS luminosity measurements. The intense synchrotron radiation field, as well as the high probability of a bremsstrahlung photon in each bunch crossing, posed new experimental constraints. In this report, we describe how these challenges were met...

The creation of electron-positron pair by a photon and the bremsstrahlung of an electron in a medium are considered in high-energy region, where influence of the multiple scattering on the processes (the Landau-PomeranchukMigdal (LPM) effect) becomes essential. The pair photoproduction probability is calculated with an accuracy up to the ”next to leading logarithm”. The integral characteristics...

The physical nature of beamstrahlung during beam-beam interaction in linear colliders is reviewed. We first make the distinction between a dense beam and a dilute beam. We then review the characteristics of synchrotron radiation (SR) and bremsstrahlung, and argue that for a wide range of beam parameters beamstrahlung is SR in nature, even if the beam is dilute. Some issues concerning the specif...

Monte Carlo simulation of radiation transport is a very powerful technique. There are basically no exact analytical solutions to the Boltzmann Transport equation. Even the "straightforward" situation (in radiotherapy) of an electron beam depth-dose distribution in water proves to be too difficult for analytical methods without making gross approximations such as ignoring energy-loss straggling,...