| Paper |
Title |
Page |
| TUPLT171 |
ORBIT Simulations of the SNS Accumulator Ring
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1530 |
| |
- J.A. Holmes, S.C. Bunch, S.M. Cousineau, V.V. Danilov, S. Henderson, A. Shishlo
ORNL/SNS, Oak Ridge, Tennessee
- M. Plum
LANL, Los Alamos, New Mexico
- Y. Sato
IUCF, Bloomington, Indiana
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As SNS undergoes construction, many detailed questions arise concerning strategies for commissioning and operating the accumulator ring. The ORBIT Code is proving to be an indispensible tool for addressing these questions and for providing guidance to the physicists and decision makers as operation draws near. This paper shows the application of ORBIT to a number of ring issues including exclusion of the HEBT RF cavities during commissioning, the detailed effect of the injection chicane magnets on the beam, the effects and correction of magnet alignment and multipole errors, debunching of the linac 402.5 MHz beam structure, the injection of self consistent uniform beam configurations, and initial electron cloud simulations.
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| THPLT168 |
XAL - The SNS Application Programming Infrastructure
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2852 |
| |
- J. Galambos, C. Chu, S.M. Cousineau, T. Pelaia, A. Shishlo
ORNL/SNS, Oak Ridge, Tennessee
- C. Allen, C. McChesney
LANL/LANSCE, Los Alamos, New Mexico
- W.-D. Klotz
ESRF, Grenoble
- I. Kriznar, A. Zupanc
Cosylab, Ljubljana
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A Java programming infrastructure for high level applications has been developed and is being used for the Spallation Neutron Source (SNS). The framework provides a hierarchal view of the accelerator and hides much of the underlying control system details. The hierarchy is database configured, facilitating sharing of applications across different beamlines, shielding the programmer from detailed knowledge of signal names, and allowing wholesale updating of applications. An important aspect of the framework is an online model, which can be run for design values, live machine values or user selected tuning values. Sample applications will be shown.
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