The injector for the Energy Recovery Linac, a new high energy X-ray source under design at Cornell, will need to create ultra bright electron beams. One measure of this brightness, the transverse emittance, is the single most important characteristic of these beams. It is therefore crucial to be able get an accurate measure of this quantity. Two experimental designs to perform this measurement ...

It has been shown how a superconducting Linac that was designed to be a high-intensity proton driver for Fermilab [1] can be modified and augmented to also serve as the muon accelerating section for a neutrino factory [2]. In this report we consider the same approach, where the Linac does double duty, but with the idea that the Linac and other parameters are chosen to serve only as a neutrino f...

In view of a possible evolution of the CERN accelerator complex towards higher proton intensities, a 2.2 GeV H linac with 4 MW beam power has been designed, for use in connection with an accumulator and compressor ring as proton driver of a muon-based Neutrino Factory. The high-energy part of this linac can use most of the RF equipment (superconducting cavities and klystrons) from the LEP colli...

Introduction Electron linear accelerator (LINAC) can be used for neutron production in Boron Neutron Capture Therapy (BNCT). BNCT is an external radiotherapeutic method for the treatment of some cancers. In this study, Varian 2300 C/D LINAC was simulated as an electron accelerator-based photoneutron source to provide a suitable neutron flux for BNCT. Materials and Methods Photoneutron sources w...

Spallation sources dedicated to neutron scattering experiments, as well as multi-purpose facilities serving several applications call for pulsed mode operation of a high intensity proton linac. There is general agreement on the superconducting technology for the high-energy part, which offers some advantages, like higher gradient capabilities or operational costs reduction, as compared to room-...

The purpose of this study was to evaluate the visibility and artifact created by gold, carbon, and polymer fiducial markers in a simple phantom across computed tomography (CT), kilovoltage (kV), and megavoltage (MV) linear accelerator imaging and MV tomotherapy imaging. Three types of fiducial markers (gold, carbon, and polymer) were investigated for their visibility and artifacts in images acq...

The Italian hadron-therapy centre CNAO (Centro Nazionale di Adroterapia Oncologica) [1] is designed for the treatment of tumours with proton and light ion beams and to clinical and radiobiological research. The design consists of two ECR ion sources, a 7 MeV/u injector linac identical to the linac of the Heidelberg ion therapy centre HIT [2][3] and a 400 MeV/u synchrotron. GSI delivers technica...

PURPOSE Treatment delivery monitoring is important for radiotherapy, which enables catching dosimetric error at the earliest possible opportunity. This project develops a virtual delivery system to monitor the dose delivery process of photon radiotherapy in real-time using GPU-based Monte Carlo (MC) method. METHODS The simulation process consists of 3 parallel CPU threads. A thread T1 is resp...

background: use of contrast agents (cas) during ct simulation for treatment planing system leads to changes in  electron density. in this study we aimed to investigate the effect on  calculated dose of various concentrations of cas on treatment planing systems in different dose calculation algorithms. materials and methods: contrast agent (0.769 mg/ml iopromid) - water mixtures at concentration...