At Brookhaven National Laboratory there is an R&D program to design an Electron Beam Ion Source (EBIS) for use in a compact ion injector to be developed for the relativistic heavy ion collider (RHIC). The BNL effort is directed at developing an EBIS with intensities of 3 x 10 particles/pulse of ions such as Au and U, and requires an electron beam on the order of 10A. The construction of a test ...

Overview Due to the high-current operation at UNILAC nonintercepting beam diagnostics is mandatory. In October 2008 a Beam Induced Fluorescent (BIF) monitor for transverse profile determination was set up in the UNILAC section US1. It serves as a prototype for the installation at 7 locations at UNILAC and the transfer channel to SIS. The comissioning and proof of functionality of the new instal...

i Executive summary High power proton accelerators (HPPAs) are at the heart of many future large-scale scientific facilities such as a spallation-neutron source, Neutrino Factory and the Muon Collider, high energy physics at the energy or intensity frontier, accelerator driven sub-critical systems, and the transmutation of nuclear waste. Controlling beam-loss induced machine activation during i...

a bstract   background: there are a few studies about commissioning mothers’ understanding from the surrogacy during 9 months of waiting for delivery in iran and other countries. this study was conducted with an aim to explore and explain the nature of concerns (experiences) of commissioning mothers. materials and methods:  a qualitative design with a conventional content analysis approach was ...

The CLIC Test Facility (CTF3) at CERN was constructed by the CTF3 collaboration to study the feasibility of the concepts for a compact linear collider. The test beam line (TBL) recently added to the CTF3 machine was designed to study the CLIC decelerator beam dynamics and 12 GHz power production. The beam line consists of a FODO lattice with high precision BPM’s and quadrupoles on movers for pr...

A new tuner control system of spoke superconducting radio frequency (SRF) cavity has been developed and applied to cryomodule I (CM1) of C-ADS injector I at IHEP. We have successfully implemented the tuner controller and achieved a cavity tuning phase error of ±0.7° (peak to peak) in the presence of electromechanical coupled resonance. This paper will present the preliminary experimental result...

The CERN to Gran Sasso Neutrino beam (CNGS) was commissioned at CERN in early August 2006 and was first sent at low intensity to Gran Sasso on August 17, 2006. The Borexino, LVD and OPERA detectors continued the commissioning of their detectors and started taking data with practically no dead time. The CNGS operated smoothly with good quality. In a short time the 3 detectors collected several h...