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Title: BTA Magnet Field Map Archive and MAD Model

Abstract

This note publishes some and information that has resided in private files. The attached tables were provided by Joseph Skelly from his archives. They show magnetic field measurements versus excitation current for the Booster to AGS transfer line quadrupoles and dipoles based on field measurements [we believe] were done by the Magnet Division. Also given are Ed Blesser's fifth order fits of field versus current. The results are given in 'Tesla' or T-M/M. These tables are attached to provide an archive of this data. The MAD model of the BTA line does have the same values as shown in the attached fits so the transfer was correct. MAD uses as its 'gradient' for quads Tesla per meter normalized to rigidity [B-rho]. The model of the BTA line in use uses the T-M/M given in the tables divided by the length to give T M which is then normalized by Brho. Thus, the input to the model appears to be correct. The original model is also attached as part of a memo by Skelly describing it.

Authors:
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
939974
Report Number(s):
BNL-81587-2008-IR
R&D Project: 18031; KB0202011; TRN: US0807055
DOE Contract Number:
DE-AC02-98CH10886
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BROOKHAVEN AGS; PARTICLE BOOSTERS; DIPOLES; EXCITATION; MAGNETIC FIELDS; QUADRUPOLES; DATA

Citation Formats

Glenn,J.W. BTA Magnet Field Map Archive and MAD Model. United States: N. p., 2008. Web. doi:10.2172/939974.
Glenn,J.W. BTA Magnet Field Map Archive and MAD Model. United States. doi:10.2172/939974.
Glenn,J.W. Tue . "BTA Magnet Field Map Archive and MAD Model". United States. doi:10.2172/939974. https://www.osti.gov/servlets/purl/939974.
@article{osti_939974,
title = {BTA Magnet Field Map Archive and MAD Model},
author = {Glenn,J.W.},
abstractNote = {This note publishes some and information that has resided in private files. The attached tables were provided by Joseph Skelly from his archives. They show magnetic field measurements versus excitation current for the Booster to AGS transfer line quadrupoles and dipoles based on field measurements [we believe] were done by the Magnet Division. Also given are Ed Blesser's fifth order fits of field versus current. The results are given in 'Tesla' or T-M/M. These tables are attached to provide an archive of this data. The MAD model of the BTA line does have the same values as shown in the attached fits so the transfer was correct. MAD uses as its 'gradient' for quads Tesla per meter normalized to rigidity [B-rho]. The model of the BTA line in use uses the T-M/M given in the tables divided by the length to give T M which is then normalized by Brho. Thus, the input to the model appears to be correct. The original model is also attached as part of a memo by Skelly describing it.},
doi = {10.2172/939974},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 01 00:00:00 EDT 2008},
month = {Tue Apr 01 00:00:00 EDT 2008}
}

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