Difference between revisions of "Specification for the two-dipole tagging spectrometer"
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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magnetic spectrometer moved to Specification for the two-dipole tagging spectrometer: Two-dipole design has been superseded by a one-dipole design, so the title should make it clear that this page refers to the older conc) |
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| + | ===Global Tagging Spectrometer Specification=== | ||
<table> | <table> | ||
| − | <tr><td>Main beam momentum</td><td> 12 GeV/c</td></tr> | + | <tr><td width="250">Main beam momentum</td><td> 12 GeV/c</td></tr> |
<tr><td>Momenum range of analyzed electrons</td><td> 0.5 to 9 GeV/c</td></tr> | <tr><td>Momenum range of analyzed electrons</td><td> 0.5 to 9 GeV/c</td></tr> | ||
<tr><td>Main beam radius</td><td> 26.685 m</td></tr> | <tr><td>Main beam radius</td><td> 26.685 m</td></tr> | ||
| Line 7: | Line 8: | ||
<tr><td>Magnetic field (full excitation)</td><td> 15.0000 kG</td></tr> | <tr><td>Magnetic field (full excitation)</td><td> 15.0000 kG</td></tr> | ||
<tr><td>Pole gap</td><td> 30 mm</td></tr> | <tr><td>Pole gap</td><td> 30 mm</td></tr> | ||
| + | </table> | ||
| + | |||
| + | ===Tagger Dipoles=== | ||
| + | <table> | ||
| + | <tr><td width="200">Length</td><td>3.09 m</td></tr> | ||
| + | <tr><td>Width</td><td>1.09 m</td></tr> | ||
| + | <tr><td>Height</td><td>1.41 m</td></tr> | ||
| + | <tr><td>Weight</td><td>38 Mg</td></tr> | ||
| + | <tr><td>Separation between magnets</td><td>40 cm</td></tr> | ||
| + | <tr><td>Angle between magnets</td><td>0.892°</td></tr> | ||
| + | </table> | ||
| + | |||
| + | ===Tagger Dipole Coils=== | ||
| + | <table> | ||
| + | <tr><td width="300">Total number of ampere turns for each magnet</td><td>61560</td></tr> | ||
| + | <tr><td>Copper conductor dimensions</td><td>11 x 11 mm<sup>2</sup></td></tr> | ||
| + | <tr><td>Copper conductor hollow core</td><td>7 mm diameter channel</td></tr> | ||
| + | <tr><td>Conductor configuration of each coil</td><td>7 x 12</td></tr> | ||
| + | <tr><td>Current density at nominal field</td><td>4.44 A/mm<sup>2</sup></td></tr> | ||
| + | <tr><td>Electrical resistance of each coil</td><td>0.124</td></tr> | ||
| + | <tr><td>Current in conductor</td><td>366.43 A</td></tr> | ||
| + | <tr><td>Voltage drop across 4 coils connected in series</td><td>181.7 V</td></tr> | ||
| + | <tr><td>Total power consumption</td><td>67 kW</td></tr> | ||
| + | <tr><td>Cooling circuits per coil</td><td>7</td></tr> | ||
| + | <tr><td>Total flow rate for 20◦C rise</td><td>80 l/min</td></tr> | ||
| + | <tr><td>Water supply pressure drop</td><td>2.0 atm</td></tr> | ||
| + | <tr><td>Outside dimension of each coil</td><td> 92 x 152 mm<sup>2</sup></td></tr> | ||
| + | <tr><td>Coil treatment</td><td>should be vacuum impregnated</td></tr> | ||
| + | </table> | ||
| + | |||
| + | ===Tagger Quadrupole Magnet=== | ||
| + | <table> | ||
| + | <tr><td width="300">Aperture diameter</td><td>30 mm</td></tr> | ||
| + | <tr><td>Magnetic length</td><td>400 mm</td></tr> | ||
| + | <tr><td>Max magnetic field gradient</td><td>20 T/m</td></tr> | ||
| + | <tr><td>Alignment of magnetic and geometric axes</td><td>±0.05 mm</td></tr> | ||
| + | </table> | ||
| + | |||
| + | ===Tagger Magnet Power Supply=== | ||
| + | <table> | ||
| + | <tr><td width="130">Power output</td><td>80 kW</td></tr> | ||
| + | <tr><td>Lead voltage</td><td>200 V</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>Options</td><td>zero field using a feed-back loop</td></tr> | ||
| + | </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 |
