The Linac Coherent Light Source (LCLS) is a SASE free electron laser using the last 1/3 of the SLAC two mile linac to produce 1.5 to 15 angstrom x-rays in a 100 meter long undulator for use in a variety of x-ray science experiments. In order to satisfy the demanding electron beam requirements, a new 135 MeV photo-injector will be built in an existing, off-axis vault at the 2/3 point of the main...

ACCELERATOR * P.N. Ostroumov, J.A. Nolen and K.W. Shepard, ANL, Argonne, IL 60439, USA Abstract The proposed design of the Rare Isotope Accelerator (RIA) driver linac is a cw, fully superconducting, 1.4 GV linac capable of accelerating uranium ions up to 400 MeV/u and protons to 1 GeV with 400 kW beam power. An extensive research and development effort has resolved many technical issues related...

The RF phases, defined as the phases between the crests of the RF accelerating voltages and the accelerated beam, must be controlled within a few degrees in the linac of the SLAC Linear Collider (SLC). Changes in the RF phases not only affect the available acceleration but more importantly modify the dynamics of the accelerated beam, e.g. the beam optics. Precision phase control is therefore cr...

A new radio frequency (rf) linear accelerator (LINAC) system with high efficiency has been developed by AIBT. The general designs of such a rf LINAC system are briefly discussed. This system includes a plurality of resonators each including an inductor circuit that is connected to at least two rf electrodes. Detailed designs of a system where two of the adjacent rf electrodes are connected to t...

A 42 MV Superconducting (SC) Booster Linac is proposed for the Holifield Radioactive Ion Beam Facility (HRIBF). The linac, consisting of 56 superconducting, quarter wave, 120 MHz, independently phased, 2 gap resonators, will be used to boost Radioactive Ion Beams (RIBs) accelerated by the 25 MV NEC tandem, to Coulomb barrier energies for use in nuclear physics research near the proton and neutr...

The 2 GeV electron linac at the Pohang accelerator laboratory (PAL) has been operated continuously as a full energy injector since its completion on December 1994. The linac system has been continuously upgraded to improve overall system stability and reliability, as well as to increase final injection energy to 2.5 GeV. Eight klystron tubes out of 11 tubes are survived since the beginning of l...

Objective: Treatment of a recalcitrant case of Kimura’s disease (KD) is described. Lesions recurred after injection of betamethasone, but responded well to radiation therapy using a Varian 21EX linear accelerator. A literature review and discussion of efficiency and safety issues is included. Method: A 53-year-old female with KD of the right cheek was treated with intramuscular injection of bet...

China Spallation Neutron Source (CSNS) consists of an H linac as an injector of a rapid cycling synchrotron of 1.6 GeV. The 324 MHz rf linac is designed with beam energy of 81 MeV and a peak current of 30 mA. The linac design and R&D are in progress. A test stand of a Penning ion source is under construction. RFQ technology has been developed in ADS study, with beam energy of 3.5 MeV, a peak cu...

The linac at the Stanford Linear Accelerator Center (SLAC) can provide beams to different experiments during PEP-II operations. It is planned to have a 30 GeV beam to the end of the linac into the FFTB (Final Focus Test Beam) area, where there will be two plasma experiments installed, which will demonstrate plasma focussing and plasma acceleration up to 1 GeV/m. The acceleration goes linear wit...