Reiser's Book Printed for 3rd Time
UMER 76 deg. Matching Settings 2006-10
The table below lists the updated magnet currents for best matching for the most commonly-used beams, for a target sigma_0 of 76 degrees. The calculations use the new hard-edge model, assume new quads throughout the ring, and include bends. See Notes below for some additional information.
| 0.6 mA / 5.5 mm emit | 5.8 mA / 16 mm emit | 23.5 mA / 20 mm emit | 100 mA / 60 mm emit | |||||||
| Magnet | Position | Peak Field [G] | Current | Peak Field [G] | Current | Peak Field [G] | Current | Peak Field [G] | Current | Magnet |
| [cm] | or Gradient [G/cm] | [A] | or Gradient [G/cm] | [A] | or Gradient [G/cm] | [A] | or Gradient [G/cm] | [A] | ||
| SOL | 17.66 | 88.00 | 4.92 | 98.10 | 5.50 | 98.10 | 5.50 | 102.50 | 5.75 | SOL |
| Q1 | 40.00 | - | - | 4.78 | 1.32 | 4.78 | 1.32 | 4.78 | 1.32 | Q1 |
| Q2 | 53.50 | - | - | 7.82 | 2.17 | 7.93 | 2.20 | 8.32 | 2.30 | Q2 |
| Q3 | 72.41 | 2.00 | 0.55 | 8.42 | 2.33 | 7.33 | 2.03 |
7.59 | 2.10 | Q3 |
| Q4 | 91.79 | 5.43 | 1.50 | 8.23 | 2.28 | 7.31 | 2.03 |
7.55 | 2.09 | Q4 |
| Q5 | 106.15 | 7.66 | 2.12 | 8.22 |
2.28 | 7.68 | 2.13 | 7.55 | 2.09 |
Q5 |
| Q6 | 122.14 | 7.55 | 2.09 | 8.14 |
2.26 | 8.11 |
2.25 | 8.11 | 2.25 | Q6 |
| YQ | 137.31 | 6.45 | 5.76 | 6.40 | 5.71 | 6.38 | 5.70 | 6.38 | 5.70 | YQ |
| QR1 | 153.31 | 6.07 | 6.01 |
6.00 |
5.94 | 5.98 | 5.92 | 5.98 | 5.92 | QR1 |
| QR2 | 169.31 | 8.23 | 2.28 | 8.16 | 2.26 | 8.14 | 2.25 | 8.14 | 2.25 | QR2 |
| QR3 | 185.31 | 7.97 | 2.21 | 7.97 | 2.21 | 7.97 | 2.21 | 7.97 | 2.21 | QR3 |
| QR70 | 1257.31 | 7.97 | 2.21 | 7.97 | 2.21 | 7.97 | 2.21 | 7.97 | 2.21 | QR70 |
| QR71 | 1273.31 | 8.25 | 2.29 | 8.14 | 2.26 | 8.11 | 2.25 | 8.11 |
2.25 | QR71 |
| Target State | Target State | Target State | Target State | |||||||
| a0 [mm] | 1.34 | 2.85 | 5.02 | 10.24 | ||||||
| b0 [mm] | 1.36 | 2.96 | 5.35 | 10.94 | ||||||
| ap0 [mrad] | 6.66 | 13.29 | 22.53 | 45.80 | ||||||
| bp0 [mrad] | 6.76 | 13.84 | 24.26 | 49.55 | ||||||
76 degrees
Posted by
ramiak
at
2006-11-13 09:40 PM
This is for the new operating point of 76 degrees phase advance. Applies to some work after October 1, 2006.
Target State
Posted by
ramiak
at
2006-11-13 09:45 PM
Target state in this case is defined in the midplane of the bending dipoles. This is NOT what you expect to see on the screen.