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Wakefield and RF Kicks Due to Coupler Asymmetry in TESLA-Type Accelerating Cavities

Description: In a future linear collider, such as the International Linear Collider (ILC), trains of high current, low emittance bunches will be accelerated in a linac before colliding at the interaction point. Asymmetries in the accelerating cavities of the linac will generate fields that will kick the beam transversely and degrade the beam emittance and thus the collider performance. In the main linac of the ILC, which is filled with TESLA-type superconducting cavities, it is the fundamental (FM) and high… more
Date: July 7, 2008
Creator: Bane, K. L. F.; Adolphsen, C.; Li, Z.; Dohlus, M.; Zagorodnov, I.; Gonin, I. et al.
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Partner: UNT Libraries Government Documents Department
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A Project to Design and Build the Magnets for a New Test Beamline, the ATF2, at KEK

Description: In order to achieve the high luminosity required at the proposed International Linear Collider (ILC), it is critical to focus the beams to nanometer size with the ILC Beam Delivery System, and to maintain the beams collisions with a nanometer-scale stability. To establish the technologies associated with this ultra-high precision beam handling, a special beamline has been designed and built as an extension of the existing extraction beamline of the Accelerator Test Facility at KEK, Japan. The A… more
Date: February 7, 2011
Creator: Spencer, Cherrill M.; /slac; Sugahara, Ryuhei; Masuzawa, Mika; /KEK, Tsukuba; Bolzon, Benoit et al.
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Partner: UNT Libraries Government Documents Department
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Measuring the Magnetic Center Behavior of an ILC Superconducting Quadrupole Prototype

Description: The main linacs of the proposed International Linear Collider (ILC) consist of superconducting cavities operated at 2K. The accelerating cavities are contained in a contiguous series of cryogenic modules that also house the main linac quadrupoles, thus the quadrupoles also need to be superconducting. In an early ILC design, these magnets are about 0.6 m long, have cos (2{theta}) coils, and operate at constant field gradients up to 60 T/m. In order to preserve the small beam emittances in the IL… more
Date: February 7, 2011
Creator: Spencer, Cherrill M.; Adolphsen, Chris; Berndt, Martin; Jensen, David R.; Rogers, Ron; Sheppard, John C. et al.
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Partner: UNT Libraries Government Documents Department
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Characterizing the Noise Performance of the KPiX ASIC Readout Chip

Description: AKPiX is a prototype front-end readout chip designed for the Silicon Detector Design Concept for the International Linear Collider (ILC). It is targeted at readout of the outer tracker and the silicon-tungsten calorimeter and is under consideration for the hadronic calorimeter and muon systems. This chip takes advantage of the ILC timing structure by implementing pulsed-power operation to reduce power and cooling requirements and buffered readout to minimize material. Successful implementation … more
Date: November 7, 2007
Creator: Carman, Jerome Kyrias & /SLAC, /Cabrillo Coll.
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Partner: UNT Libraries Government Documents Department
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Extrapolation of supersymmetry-breaking parameters to high energy scales

Description: The author studies how well one can extrapolate the values of supersymmetry-breaking parameters to very high energy scales using future data from the Large Hadron Collider and an e{sup +}e{sup -} linear collider. He considers tests of the unification of squark and slepton masses in supergravity-inspired models. In gauge-mediated supersymmetry breaking models, he assess the ability to measure the mass scales associated with supersymmetry breaking. He also shows that it is possible to get good co… more
Date: November 7, 2002
Creator: Martin, Stephen P
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Partner: UNT Libraries Government Documents Department
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A Preliminary Low-Frequency Electromagnetic Analysis of a Flux Concentrator

Description: The objective of this investigation was to conduct a quick, preliminary transient magnetostatic analysis of a Brechna-type[1] flux concentrator to determine its feasibility for collecting positrons in the International Linear Collider. The magnetostatic transient module of Maxwell 3D, Version 10, from the Ansoft Corporation was used to model the flux concentrator.
Date: June 7, 2006
Creator: Mayhall, D J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The ILC Marx Modulator Development Program at SLAC

Description: The International Linear Collider [ILC] baseline design requires 576 L-band klystron stations, each supplying 10MW peak RF power to the accelerating structures. Each klystron requires a modulator capable of delivering 120kV, 140A 1.6ms pulses, at 5Hz. Solid-state Marx modulator topologies are rapidly becoming feasible with the advent of PC-board-level 4500V IGBTs, fast single junction HV diodes, high density capacitors, and sophisticated modeling software. Making full use of recent technology a… more
Date: June 7, 2005
Creator: Leyh, G. E.
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Partner: UNT Libraries Government Documents Department
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Precise predictions for slepton pair production

Description: At a future linear collider, the masses and couplings of scalar leptons can be measured with high accuracy, thus requiring precise theoretical predictions for the relevant processes. In this work, after a discussion of the expected experimental precision, the complete one-loop corrections to smuon and selectron pair production in the MSSM are presented and the effect of different contributions in the result is analyzed.
Date: November 7, 2002
Creator: Freitas, Ayres & Manteuffel, Andreas von
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Partner: UNT Libraries Government Documents Department
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HIGH ENERGY PHYSICS POTENTIAL AT MUON COLLIDERS

Description: In this paper, high energy physics possibilities and future colliders are discussed. The {mu}{sup +} {mu}{sup {minus}} collider and experiments with high intensity muon beams as the stepping phase towards building Higher Energy Muon Colliders (HEMC) are briefly reviewed and encouraged.
Date: April 7, 2000
Creator: Parsa, Z.
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Partner: UNT Libraries Government Documents Department
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Acceleration for a High Energy Muon Collider

Description: The authors describe a method for designing the acceleration systems for a muon collider, with particular application and examples for a high energy muon collider. This paper primarily concentrates on design considerations coming from longitudinal motion, but some transverse issues are briefly discussed.
Date: April 7, 2000
Creator: Berg, J. S.
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Partner: UNT Libraries Government Documents Department
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Silicon vertex tracker: A fast precise tracking trigger for CDF

Description: The Silicon Vertex Tracker (SVT), currently being built for the CDF II experiment, is a hardware device that reconstructs 2-D tracks online using measurements from the Silicon Vertex Detector (SVXII) and the Central Outer Tracker (COT). The precise measurement of the impact parameter of the SVT tracks will allow, for the first time in a hadron collider environment, to trigger on events containing B hadrons that are very important for many studies, such as CP violation in the b sector and search… more
Date: October 7, 1999
Creator: others], W. Ashmanskas
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Partner: UNT Libraries Government Documents Department
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