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Title: Transition crossing in the RHIC

Abstract

This report summarizes the study of various longitudinal problems pertaining to the transition-energy crossing in the proposed Relativistic Heavy Ion Collider. Scaling laws are provided for the effects of chromatic non-linearity, self-field mismatch, and microwave instability. It is indicated that the beam loss and bunch-area growth are mainly caused by the chromatic non-linear effort, which is enhanced by the space-charge force near transition. Computer simulation using the program. TIBETAN shows that a ``{gamma}T-jump`` of about 0.8 unit within a time period of 60 ms is adequate to achieve a ``clean`` crossing, provided that the remnant voltage of the 160 MHz rf system is less than 10 kV.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10140964
Report Number(s):
BNL-46683; CONF-920315-30
ON: DE92013031
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Conference: EPAC 92: 3. European particle accelerator conference: accelerators for special applications,Berlin (Germany),24-28 Mar 1992; Other Information: PBD: [1992]
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BROOKHAVEN RHIC; BEAM DYNAMICS; SCALING LAWS; INSTABILITY; RF SYSTEMS; BEAM BUNCHING; BEAM OPTICS; NONLINEAR PROBLEMS; 430200; BEAM DYNAMICS, FIELD CALCULATIONS, AND ION OPTICS

Citation Formats

Wei, Jie. Transition crossing in the RHIC. United States: N. p., 1992. Web.
Wei, Jie. Transition crossing in the RHIC. United States.
Wei, Jie. Fri . "Transition crossing in the RHIC". United States. https://www.osti.gov/servlets/purl/10140964.
@article{osti_10140964,
title = {Transition crossing in the RHIC},
author = {Wei, Jie},
abstractNote = {This report summarizes the study of various longitudinal problems pertaining to the transition-energy crossing in the proposed Relativistic Heavy Ion Collider. Scaling laws are provided for the effects of chromatic non-linearity, self-field mismatch, and microwave instability. It is indicated that the beam loss and bunch-area growth are mainly caused by the chromatic non-linear effort, which is enhanced by the space-charge force near transition. Computer simulation using the program. TIBETAN shows that a ``{gamma}T-jump`` of about 0.8 unit within a time period of 60 ms is adequate to achieve a ``clean`` crossing, provided that the remnant voltage of the 160 MHz rf system is less than 10 kV.},
doi = {},
url = {https://www.osti.gov/biblio/10140964}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {5}
}

Conference:
Other availability
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