The ISAC superconducting linac is a fully operational machine that routinely provides beam to experiments. The linac consists of twenty superconducting independently phased cavities housed in five cryomodules. The initial tune is done manually aided by MATLAB routines to phase the linac and set the correct optics. From the initial tune we calculate the gradient at which each cavity operates bas...

The accelerating structure for the superconducting linac booster for the 15 UD Pelletron at IUAC is a Nb QWR cavity, designed and fabricated as a joint collaboration between IUAC and ANL, USA. Initial cavities required for the first linac module were fabricated at ANL. For fabrication of cavities required for future modules a Superconducting Resonator Fabrication Facility has been set up at IUA...

The high-intensity proton accelerator facility project in Japan which comprises a 600-MeV linac, a 3-GeV, 1-MW rapid-cycling synchrotron (RCS), and a 50-GeV synchrotron will promote many important scientific and engineering fields such as life science, materials science, nuclear physics and fundamental particle physics. The construction of the low-energy front 60-MeV linac has been already star...

A program to design a high brilliance electron source suitable for a short wavelength Linac-based FEL is presented. The goal of the project is to develop a multicell integrated photoinjector capable of delivering 1 nC bunches with emittance below 1 mm mrad. This will be the first step toward a possible development of a IV generation light source test facility based on the existing Trieste Linac...

.In this paper, we discuss some basic beam dynamics issues related to obtaining and preserving the luminosity of a next generation linear collider. In Figure 1 you see a diagram illustrating the main subsystems of one-half of the collider. The beams are extracted from a damping ring and compressed in length by the first bunch compressor. They are then accelerated in a preaccelerator linac up to...

The main obstacle to emittance preservation in the main linac of a linear collider is the alignment of the quadrupoles and accelerating cavities with respect to the beam. The misalignment tolerances in the case of the TESLA superconducting main linac are reviewed. Simulations of possible beam-based alignment algorithms to meet these tolerances are presented. Presented at 2002 European Particle ...

The TRASCO project for nuclear waste transmutation [1] requires a 5-100 MeV linac for acceleration of a 30 mA proton beam. Generally, room temperature Drift Tube Linac structures are used in this energy range; however, since the high duty cycle required for high current beams implies a very high power density on the resonators walls, the superconducting solution would offer many advantages. Amo...

The Brookhaven Accelerator Test Facility (ATF) consists of a 50-MeV/c electron linac and a high-brightness RF-gun both operating at 2856 MHi. An extremely short (a few picoseconds) electron pulse with a low transverse emittance is generated by the RF-gun. In order to preserve both longitudinal and transverse emittances, great care must be taken in transporting the election beam from the RF-gun ...

Beam operation of the bERLinPro energy recovery linac project, whose construction is under way, will initially start using the photoinjector and booster modules. In a second step the recirculation beam line and the main Linac module will be added. Here the current design status of the main linac module is described. Results of wake field simulations are compared for different set ups. We also r...

background: megavoltage beams used in radiotherapy are contaminated with secondary electrons. different parts of linac head and air above patient act as a source of this contamination. this contamination can increase damage to skin and subcutaneous tissue during radiotherapy.  monte carlo simulation is an accurate method for dose calculation in medical dosimetry and has an important role in opt...