Accelerator

Center for Advanced Studies of Accelerators


 CASA Tech Notes

2009

2008

The 3m Arc Dipole (BA)-Modeling and Comparison with Sparse Experimental Data
Jay Benesch

Calculating Multipoles in Opera/Tosca-Mesh and Software Noise Effects
Jay Benesch

Evaluation of Synchrotron Radiation Bucking Coil Locations in 4m Arc Dipole
Jay Benesch

Optim Deck for 8 Degree Hall D Line
Jay Benesch

Concept and Status of the PZT Booster
Yu-Chiu Chao

Collection of Notes Related to Future Work on Parity Quality Beam
Yu-Chiu Chao

FAQ for Injector Matching
Yu-Chiu Chao

Correction Mechanisms for Synchrotron Radiation Energy Droop in Beam Transport at CEBAF
Michael Tiefenback

Normal and Skew Multiple Terms in the Dipoles and Quadrupoles of the 12GeV CEBAF Upgrade
Yves Roblin

The New Hall C Beamline
Jay Benesch

Determination of the Influence of Machining Defects on Magnetic Fields
Nicolas Ruiz

First-Wall Stand-Off in CEBAF Accelerators
Michael Tiefenback, Pavel Chevtsov

Higher Order Field Multipoles Dependence on Machining Defects
Nicolas Ruiz

Evaluation Methods for Integrated Normal Multipoles in 3D Magnet Models
Nicolas Ruiz

A Study of Beam Breakup in 12 GeV Upgrade with Double Bend Achromat ARC Optics
Ilkyoung Shin, Byung Yunn

A Symmetric Ion-Lepton Collider for Jefferson Lab
S. A. Bogacz, T. Horn, F. J. Klein, P. Nadel-Turonski

Multipoles as a Function of Central Magnetic Field
Jay Benesch

g4beamline and E05-115
K.B. Beard, Muons, Inc.

Hall D Optics Options
Jay Benesch, Yves Roblin

J(BdL) Curves for CEBAF Dipoles from 3D Magnetostic Models
Jay Benesch

Banana Magnets for 6 and 12 GeV CEBAF
Jay Benesch

Trapezoidal Common Dipoles-Tilting Isn't Worth It
Jay Benesch

2007

How to Match a Beam Trajectory to Design Optics, or What Does It Mean
Yu-Chiu Chao

Single Particle Trajectory in the Presence of XY Coupling-Evolution of 4D Courant Snyder Parameters
Yu-Chiu Chao

Impact on Projected Emittance Growth by Compounded Effects of Systematic Residual Linac Coupling and Betatron Mismatch
Yu-Chiu Chao

QA Quadrupole Field Quality
Jay Benesch

A Deterministic Betatron Matching Recipe Based on Periodic FODO Lattice
Yu-Chiu Chao

Double Bend Achromat Arc Optics for 12 GeV CEBAF
Alex Bogacz

Design Deck for 12 GeV Optics
Yu-Chiu Chao, Alex Bogacz, Arne Freyberger, Yves Roblin, Michael Tiefenback

Field Error Tolerances for Spreader/Recombiner Magnets
Alex Bogacz

Magnetic Field Specifications for the Multipole Content of Dipole and Quadrupole Magnets in the 12 GeV Upgrade
Alex Bogacz, Yves Roblin

Comparison Between DIMAD and OPTIM Implementations of Multipole Fields Expansions
Yves Roblin

Alignment and Powering Specifications for the 12 GeV Upgrade
Arne Freyberger, Alex Bogacz, Yu-Chiu Chao, Yves Roblin, Yuhong Zhang

High-Level Applications for the 12 GeV Upgrade
Yu-Chiu Chao, Yves Roblin

Diagnostics Specifications for the 12 GeV Upgrade
Alex Bogacz, Michael Tiefenback

Extraction Scheme for the 12 GeV Upgrade
Alex Bogacz, Jay Benesch

Optimized Orbit Correction System Configuration for 12 GeV CEBAF
Yu-Chiu Chao

123 MeV Injection Chicane and Compatibility with Global Optics for 12 GeV CEBAF
Yu-Chiu Chao

Rationale for Quadrupole Range Requirements for 12 GeV CEBAF
Yu-Chiu Chao

Comments on 12 GeV Klystrons
Jean Delayen, Geoffrey Krafft

Concept for Extension to Steering Configuration Optimization Program for 12 GeV
Yu-Chiu Chao

12 GeV DIMAD Decks
Jay Benesch, Alex Bogacz, Yu-Chiu Chao, Arne Freyberger, Yves Roblin, Chris Tennant

Phase Trombone for Parity Experiments
Alex Bogacz

Resolution Requirements on Beam Based Transfer Matrix Measurements across the Capture and the Quarter-Cryo-Module
Yu-Chiu Chao

2006

Synchrotron Radiation Power at CEBAF 12 GeV Upgrade
Byung Yunn, Eduard Pozdeyev

Digital LLRF Test on Renascence
H. Dong, A. Hofler, C. Hovater, J. Musson, T. Plawski

Testing Rationale of 12 GeV Globally Optimized Optics in 6 GeV CEBAF
Yu-Chiu Chao

Evaluation and Optimization of Orbit Correction System Configuration of 12 GeV CEBAF
Yu-Chiu Chao

Beam Based Characterization of 5-Pass Accelerator Transport October-November 2005
Yu-Chiu Chao

Field Error Tolerances Quadrupole/Dipole Specs
Alex Bogacz, Michael Tiefenback

On the Luminosity Advantage of ERLs for Collider Applications
Geoffrey Krafft, Byung Yunn, Yaroslav Derbenev

Steering in CEBAF Since January 1, 2000
Jay Benesch

Muon Acceleration in a Dogbone RLA-Beam Dynamics Issues
Alex Bogacz

Studies of Beam Halo Formation in the 12 GeV CEBAF Design
Arne Freyberger, Yves Roblin

Figure-8 Electron Ring Small Equilibrium Emittance Lattice
Alex Bogacz

2005

Preliminary Design for the Recirculated Injector of CEBAF 12 GeV Upgrade
Yu-Chiu Chao

Improved Optimization of North Linac Momentum Profile for CEBAF 12 GeV Upgrade
Yu-Chiu Chao

Design of Vertical Separation Schemes for the CEBAF 12 GeV Upgrade Extraction Lines
Yu-Chiu Chao

Magnet Sign Conventions and Shunts Configuration
Yves Roblin

A Note on Multipass Beam Breakup with a Coupled Optics
Byung Yunn

A Single Cavity Model of Multipass Beam Breakup in Recirculating Linac
Byung Yunn

Quadrupole Requirements and Changes for the CEBAF 12 GeV Upgrade
Mark Wiseman, Jay Benesch, Yu-Chiu Chao, Leigh Harwood

RF Parameters for the 12 GeV Upgrade Cryomodule
Jean Delayen

Curvature-Induced Bunch Self-Interaction for an Energy-Chirped Bunch in Magnetic Bends
Rui Li

Beam Diagnostics and Transport Magnet Requirements for the ARC10 and Hall-D Beamlines
J. Benesch, A. Bogacz, A. Freyberger, Y. Chao, M. Spata, M. Tiefenback

Computer Simulation Studies of Two Injection Options for 12 GeV CEBAF Upgrade
Y. Zhang, J. Benesch, Y. Chao, J. Grames, R. Kazimi, G. Krafft, M. Tiefenback, B. Yunn

Beam Diagnostics and Transport Magnet Requirements for the Recirculated Injector
J. Benesch, A. Bogacz, A. Freyberger, Y. Chao, M. Spata, M. Tiefenback

Performance and Technical Requirements for the CEBAF Energy Upgrade Low Level RF System
Curt Hovater, John Musson, Alicia Hofler, Hai Dong

Simulations of Cumulative Beam Breakup in the AES Injector
Eduard Pozdeyev

Feasibility Study of Suppression of Multipass BBU at the JLab FEL by a Pulsed Phase Trombone
Eduard Pozdeyev

Compact Wideband THz Source
Geoffrey Krafft

alpha, beta, epsilon at CEBAF-What has been measured? How well do others do?
Jay Benesch

2004

How to Recover Energy in Linear Collider
Byung Yunn

Is Cryomodule Damping a Hoax
Yu-Chiu Chao

Estimated Beam Breakup Threshold Currents in the 10kW FEL due to HOMs in the 7-Cell Cryomodule
C. Tennant, E. Pozdeyev, S. Simrock, A. Sun, H. Wang

A Study on Ion Beam Stability in ELIC
Byung Yunn

Equation for the Multi-pass Beam Breakup Threshold Current for a Single Mode and a 4x4 Recirculation Matrix
Eduard Pozdeyev, Chris Tennant

Simulation Results of Two-Dimensional Multi-Pass Beam Breakup
Chris Tennant, Eduard Pozdeyev

Accuracy of Prediction of the Multi-pass Beam Breakup Threhold Current in Beam Transfer Function and Decay Time Measurements
Eduard Pozdeyev, Chris Tennant

TDBBU 3.1, Putting Lasing Into the Beam Breakup Simulations
K. B. Beard, D. Douglas, B. Yunn

Hall D Behind B or How an exercise to allow energy measurement in Hall B changed into an examination of moving GlueX to the West End of the Machine
Jay Benesch

HOM Damping Requirement for 12 GeV Upgrade
Byung Yunn

Waveguide Arc Restrike Test Results
Tom Powers, Doug Curry, Kirk Davis, Larry King, Mike Tiefenback

2003

An Overview of Emittance Measurements for CEBAF-ER
Christopher Tennant

Analysis of Emittance Measurements of the Energy-Recovered Beam in CEBAF-ER
Christopher Tennant

Compact High Power THz Source
Geoffrey Krafft

How to Control a Multipass Beam Breakup
Byung Yunn

2002

A Magnet Field Quality Limitation on ERL Performance
David Douglas

A Simulation Program to Study Phase Space Dynamics in CEBAF-ER/CD
Christopher Tennant

Estimates of the Beam Breakup Thresholds in the 10KW FEL due to HOMS
Kevin Beard, Nikolitsa Merminga and Byung Yunn

Frequency Measurements on the Prototype SNS Medium-b Cryomodule under Pulsed and CW Operation
Jean Delayen, Edward Daly, G. Davis and Stephen Smee

matbbu 2.4: A Tool to Estimate Beam Breakup due to Higher Order Modes
Kevin Beard, Nikolitsa Merminga and Byung Yunn

tdbbu 1.6: Another Tool for Estimating Beam Breakup due to Higher Order Modes
Kevin Beard, Nikolitsa Merminga and Byung Yunn

TDBBU and MATBBU Input File Format
Kevin Beard, Nikolitsa Merminga and Byung Yunn

2001

A Test of Energy Recovery in Large Systems
David Douglas

2000

Design of a Muon Accelerator Driver for a Neutrino Factory
Jean Delayen, David Douglas, Leigh Harwood, Geoffrey Krafft, Valeri Lebedev and Others

High Brightness Electron Beam Diagnostics and their Applications to Beam Dynamics in a Superconducting Energy-Recovering Free-Electron Laser
Philippe Piot