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Title: Beam Loss due to Foil Scattering in the SNS Accumulator Ring

Abstract

In order to better understand the contribution of scattering from the primary stripper foil to losses in the SNS ring, we have carried out calculations using the ORBIT Code aimed at evaluating these losses. These calculations indicate that the probability of beam loss within one turn following a foil hit is ~1.8 10-8 , where is the foil thickness in g/cm2, assuming a carbon foil. Thus, for a typical SNS stripper foil of thickness = 390 g/cm2, the probability of loss within one turn of a foil hit is ~7.0 10-6. This note describes the calculations used to arrive at this result, presents the distribution of these losses around the SNS ring, and compares the calculated results with observed ring losses for a well-tuned production beam.

Authors:
 [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1056975
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 52nd ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Beijing, China, 20120917, 20120921
Country of Publication:
United States
Language:
English

Citation Formats

Holmes, Jeffrey A, and Plum, Michael A. Beam Loss due to Foil Scattering in the SNS Accumulator Ring. United States: N. p., 2012. Web.
Holmes, Jeffrey A, & Plum, Michael A. Beam Loss due to Foil Scattering in the SNS Accumulator Ring. United States.
Holmes, Jeffrey A, and Plum, Michael A. 2012. "Beam Loss due to Foil Scattering in the SNS Accumulator Ring". United States.
@article{osti_1056975,
title = {Beam Loss due to Foil Scattering in the SNS Accumulator Ring},
author = {Holmes, Jeffrey A and Plum, Michael A},
abstractNote = {In order to better understand the contribution of scattering from the primary stripper foil to losses in the SNS ring, we have carried out calculations using the ORBIT Code aimed at evaluating these losses. These calculations indicate that the probability of beam loss within one turn following a foil hit is ~1.8 10-8 , where is the foil thickness in g/cm2, assuming a carbon foil. Thus, for a typical SNS stripper foil of thickness = 390 g/cm2, the probability of loss within one turn of a foil hit is ~7.0 10-6. This note describes the calculations used to arrive at this result, presents the distribution of these losses around the SNS ring, and compares the calculated results with observed ring losses for a well-tuned production beam.},
doi = {},
url = {https://www.osti.gov/biblio/1056975}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2012},
month = {Sun Jan 01 00:00:00 EST 2012}
}

Conference:
Other availability
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