| NOTE-0514 Field Measurements in the BaBar Solenoid |
| Doc Type |
BaBar Notes |
| Record Created |
December 21, 2001 |
| Author List? |
No |
| Abstract |
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The magnetic field within the BaBar super conductiong solenoid (3.8m long by 3m diameter, at a field of 1.5 Tesla) has been measured with a set of hall probes placed on a mechanical arm that rotated about, and moved along, the axes of the coil. The measurements were fit to a functional model which contains polynomial terms to order 40 for the BZ and BR field components, a few trigonometric-bessel terms having one-, two-, and six-fold phi symmetry, and 24 dipole terms positioned on the end plates to describe the non-uniform iron distribution of these plates. The measurements and the model agree to 1.7 gauss (rms) within the drift chamber tracking volume, and to 5 gauss in the fully mapped volume (-1.8 < Z < 1.8m, R < 1.3m).
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| Other Authors |
Antokhin, Evaueni
Boyarski, Adam M.
Bulos, Fatin
Buzykaev, Alexey
Dunwoodie, William
Ganzhur, Sergey
Jensen, Dave R.
Keller, Lewis
Lynch, Harvey
Wolf, Zachary R.
Yu, Nancy
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| Revisions and Files |
1 revised July 4, 1776
File Date
Thumbnails | File Name |
File Type |
File Format |
File Size (Kb) |
Comments |
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| 14-FEB-2002 |
BaBar514.pdf |
Paper (journal paper or conference submission by BABAR Collaboration) |
pdf |
539.37 |
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| 12-FEB-2002 |
babar-note-abs-514.txt |
Abstract |
txt |
0.72 |
none |
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