Difference between revisions of "Specification for the two-dipole tagging spectrometer"
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m (→Tagger Magnet Power Supply) |
m (Specification for tagging magnetic spectrometer moved to Specification for the two-dipole tagging spectrometer: Two-dipole design has been superseded by a one-dipole design, so the title should make it clear that this page refers to the older conc) |
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<tr><td width="130">Power output</td><td>80 kW</td></tr> | <tr><td width="130">Power output</td><td>80 kW</td></tr> | ||
− | <tr><td> | + | <tr><td>Lead voltage</td><td>200 V</td></tr> |
<tr><td>Current</td><td>400 A</td></tr> | <tr><td>Current</td><td>400 A</td></tr> | ||
<tr><td>Current stability</td><td>few parts per million over 48 hours</td></tr> | <tr><td>Current stability</td><td>few parts per million over 48 hours</td></tr> | ||
<tr><td>Options</td><td>zero field using a feed-back loop</td></tr> | <tr><td>Options</td><td>zero field using a feed-back loop</td></tr> | ||
</table> | </table> |
Latest revision as of 13:51, 1 June 2010
Contents
Global Tagging Spectrometer Specification
Main beam momentum | 12 GeV/c |
Momenum range of analyzed electrons | 0.5 to 9 GeV/c |
Main beam radius | 26.685 m |
Main beam bending angle | 13.4° |
Entrance face angle for the first magnet | 5.9° |
Magnetic field (full excitation) | 15.0000 kG |
Pole gap | 30 mm |
Tagger Dipoles
Length | 3.09 m |
Width | 1.09 m |
Height | 1.41 m |
Weight | 38 Mg |
Separation between magnets | 40 cm |
Angle between magnets | 0.892° |
Tagger Dipole Coils
Total number of ampere turns for each magnet | 61560 |
Copper conductor dimensions | 11 x 11 mm2 |
Copper conductor hollow core | 7 mm diameter channel |
Conductor configuration of each coil | 7 x 12 |
Current density at nominal field | 4.44 A/mm2 |
Electrical resistance of each coil | 0.124 |
Current in conductor | 366.43 A |
Voltage drop across 4 coils connected in series | 181.7 V |
Total power consumption | 67 kW |
Cooling circuits per coil | 7 |
Total flow rate for 20◦C rise | 80 l/min |
Water supply pressure drop | 2.0 atm |
Outside dimension of each coil | 92 x 152 mm2 |
Coil treatment | should be vacuum impregnated |
Tagger Quadrupole Magnet
Aperture diameter | 30 mm |
Magnetic length | 400 mm |
Max magnetic field gradient | 20 T/m |
Alignment of magnetic and geometric axes | ±0.05 mm |
Tagger Magnet Power Supply
Power output | 80 kW |
Lead voltage | 200 V |
Current | 400 A |
Current stability | few parts per million over 48 hours |
Options | zero field using a feed-back loop |