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Title: Rematching AGS Booster synchrotron injection lattice for smaller transverse beam emittances

Abstract

The polarized proton beam is injected into the booster via the charge-exchange (H- to H+) scheme. The emittance growth due to scattering at the stripping foil is proportional to the beta functions at the foil. It was demonstrated that the current scheme of reducing the beta functions at the stripping foil preserves the emittance better; however the betatron tunes are above but very close to half integer. Due to concern of space charge and half integer in general, options of lattice designs aimed towards reducing the beta functions at the stripping foil with tunes at more favorable places are explored.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States). Alternating Gradient Synchrotron
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1344229
Report Number(s):
BNL-113508-2017-IR
R&D Project: KBCH139; KB0202011
DOE Contract Number:  
SC00112704
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Alternating Gradient Synchrotron

Citation Formats

Liu, C., Beebe-Wang, J., Brown, K., Gardner, C., Huang, H., Minty, M., Schoefer, V., and Zeno, K.. Rematching AGS Booster synchrotron injection lattice for smaller transverse beam emittances. United States: N. p., 2017. Web. doi:10.2172/1344229.
Liu, C., Beebe-Wang, J., Brown, K., Gardner, C., Huang, H., Minty, M., Schoefer, V., & Zeno, K.. Rematching AGS Booster synchrotron injection lattice for smaller transverse beam emittances. United States. doi:10.2172/1344229.
Liu, C., Beebe-Wang, J., Brown, K., Gardner, C., Huang, H., Minty, M., Schoefer, V., and Zeno, K.. Wed . "Rematching AGS Booster synchrotron injection lattice for smaller transverse beam emittances". United States. doi:10.2172/1344229. https://www.osti.gov/servlets/purl/1344229.
@article{osti_1344229,
title = {Rematching AGS Booster synchrotron injection lattice for smaller transverse beam emittances},
author = {Liu, C. and Beebe-Wang, J. and Brown, K. and Gardner, C. and Huang, H. and Minty, M. and Schoefer, V. and Zeno, K.},
abstractNote = {The polarized proton beam is injected into the booster via the charge-exchange (H- to H+) scheme. The emittance growth due to scattering at the stripping foil is proportional to the beta functions at the foil. It was demonstrated that the current scheme of reducing the beta functions at the stripping foil preserves the emittance better; however the betatron tunes are above but very close to half integer. Due to concern of space charge and half integer in general, options of lattice designs aimed towards reducing the beta functions at the stripping foil with tunes at more favorable places are explored.},
doi = {10.2172/1344229},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 25 00:00:00 EST 2017},
month = {Wed Jan 25 00:00:00 EST 2017}
}

Technical Report:

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