Reiser's Book Printed for 3rd Time
UMER Magnet Data
UMER Magnet Data
| Below are the primary parameters for the UMER printed-circuit magnets currently installed. All the magnets | ||||||||
| were designed by Terry Godlove. More details on the magnet deisgn and specifications can be | ||||||||
| found in the technical note by Godlove dated July 28, 2004, from which the following data is extracted. | ||||||||
| Any discrepancies in the numbers are due to slight corrections by Rami Kishek after verification of | ||||||||
| the calculations using MAG-Li. | ||||||||
| Quads | leff | SB leff (e) | SB field (e) | Peak Gradient | Integrated Gradient | Physical | Physical | MagLi File |
| (cm) | (cm) | factor, f | per Amp (G/cm/A) | per Amp (G/A) | Length (cm) | Radius (cm) | (linked) | |
| Old Ring (a) | 3.63 | 5.043 | 0.7206 | 4.14 | 15.022 | 4.65 | 2.79 | QMAG62.spc |
| New Ring | 3.72 | 5.164 | 0.7208 | 3.61 | 13.438 | 4.65 | 2.95 | QMAG31.spc |
| YQ * |
4.91 (c) | ? | ? | 1.12 | 5.488 (c) | 5.40 | 5.00 | QMAG83.spc |
| QR1 * |
5.38 | 7.45 | 0.7224 | 1.01 | 5.438 | 5.40 | 5.00 | QMAG83.spc |
| BD (Quad Term) |
4.07 | ? | ? | x/y = 0.032/0.152 | x/y = 0.145/0.559 | - | - | DMAG02.spc |
| PD (Quad Term) |
2.374 |
? |
? |
x/y = 0.0053/0.0175 | x/y = 0.0127/0.0411 | - |
DMAG67mod.spc | |
| Dipoles | leff (b) | leff (c) | Peak Field | Integrated Field (d) | Physical | Physical | MagLi File | |
| (cm) | (cm) | per Amp (G/A) | per Amp (G-cm/A) | Length (cm) | Radius (cm) | |||
| Bending | 3.757 | 3.82 | 5.22 | 19.93 | 4.437 | 2.872 | DMAG02.spc | |
| Short Steerer | 3.063 | - | 1.18 | 3.627 | 1.54 | 2.79 | DTMAG02.spc | |
| 3-3/8" Flange | 5.183 | - | 0.640 | 3.317 | 2.37 | 4.726 | DTMAG20.spc | |
| 4-1/2" Flange | 5.67 | - | 0.685 | 3.886 | 3.80 | 5.75 | DTMAG22.spc | |
| Pulsed Dipole * |
5.18 | 5.00 | 0.383 | 1.913 | 4.40 | 4.40 | DMAG67mod.spc | |
| YQ (Dip Term) * | - | 5.01 | 1.530 | 7.665 | - | - | QMAG83.spc | |
| Legend: | ||||||||
| * |
Injection Y-Shape Magnets | |||||||
| (a) |
Old quads - completely |
decommissioned - |
8/2006 | |||||
| (b) |
Measured along the z-axis of the magnet | |||||||
| (c) |
Measured along the reference trajectory or s-axis | |||||||
| (d) |
To bend the beam 10 deg., the integrated field should be 59.142G-cm | |||||||
| (58.12 G-cm if the calculation is performed non-relativistically) | ||||||||
| (e) |
This effective length gives better results for "hard-edge" model calculations. | |||||||
| However, need to multiply actual peak field used by factor f | ||||||||
| (see 2006 Technical Notes by Santiago Bernal) | ||||||||
| Solenoid | ||||||||
| Field on axis follows formula, obtained via fitting from empirical measurements: | ||||||||
| Bz(z) = | Bo exp(-z/d)2 [sech(z/b) + C sinh2(z/b)] | |||||||
| where, for the UMER solenoid: | ||||||||
| d = | 4.82 cm | |||||||
| b = | 3.43 cm | |||||||
| C = | 0.017 | |||||||
| Relation between solenoid field and current: | ||||||||
| B_SOL [T] | = (1.35 + 17.597*I_SOL [A])*1.0e-4 | |||||||
| Solenoid Effective Length | ||||||||
| Usual definition | 4.50 |
cm | ||||||
| Bernal Formula | 6.5708 |
[cm] - 0.00029 kappao [m-2] | ||||||
| SB Scale Factor | 0.69448 |
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Created by
ramiak
Contributors : R. Kishek, T. Godlove, S. Bernal, M. Pruessner
Last modified 2007-07-18 04:20 PM
Contributors : R. Kishek, T. Godlove, S. Bernal, M. Pruessner
Last modified 2007-07-18 04:20 PM