beam-losses

Paper	Title	Other Keywords	Page
TUPSA022	Simulation of Au32+ Beam Losses Due to Charge Exchange and Dynamic Vacuum in Nuclotron Booster	booster, ion, simulation, vacuum	89
	A. O. Sidorin, A. Kuznetsov, V. A. Mikhaylov, G. V. Trubnikov JINR, Dubna, Moscow Region A. V. Philippov JINR/VBLHEP, Dubna, Moscow region P. Puppel, P. J. Spiller GSI, Darmstadt
	The StrahlSim code was used to simulate the beam loss and the dynamic vacuum for the proposed Nuclotron booster. The Nuclotron booster will accelerate Au32+ ions from 6.2 MeV/u to 600 MeV/u. The simulations have been carried out considering systematic injection (0% to 10%) and RF-capture losses (5% to 15%). Furthermore the influence of an ion catcher system on the beam loss has been investigated, in order to estimate, if such a system could stabilize the beam loss. Without an ion catcher system, zero systematic losses, and a static pressure of , the transmission was calculated to be 83%. The presence of an ion catcher system would stabilize the transmission at a considerably higher level than without such a system for all scenarios.
THCHA03	A Beam Loss Scintillator System for Background Monitoring at the LHCb Experiment	injection, background, simulation, monitoring	286
	V. Talanov, R. Dzhelyadin IHEP Protvino, Protvino, Moscow Region F. Alessio, G. Corti, R. Jacobsson CERN, Geneva A. Bobrov, A. Bondar BINP, Novosibirsk M. H. Lieng UNIDO, Dortmund
	The LHCb experiment at the Large Hadron Collider (CERN) has developed a complete high-speed and high-sensitivity background monitor based on a pair of plastic scintillators and a custom-made LHCb readout board to record fast LHC beam losses with time information. The system is installed close to the LHCb Vertex Locator and it has been operational since the LHC pilot run providing valuable information to the LHC Operations crew during beam commissioning and to LHCb Control Room about the experimental conditions at the physics runs. The system is able to record fast beam losses at a rate of 40 MHz, providing information regarding the bunch crossing of the loss, the intensity of the loss calibrated in number of Minimum Ionizing Particles. A full control and monitoring system has been developed as well within the framework of the LHCb Experimental Control System. A complete simulation of the system has been central in converting the response of the system into physical quantities. In this paper we will describe the system in its components and functionalities, the commissioning phase, the simulation framework and the first results with real beam at the LHC.
	Slides