Proposed Conventional Sextupole for Installation at A0 Introduction (Dean Still) Reasons for installation- Reduce I in S6 feeddown sextupole circuit at injection and possibly up the ramp. Magnetic Parameters – ( Vladimir Shiltsev, Dave Harding, Yuri Alexahin) Does the magnet need to ramp? Ramp tests. Possibly of building laminated version Mechanical – (Mike Mcgee, Bill Robotham) Will it fit into the A0 space? Requires stand modification. Requires entire magnet rotated +/- 30 degrees. Electrical/Power Supply – (Wolff) Need to know Installation – (Jim Volk) Mechanical Cable pulls Controls Water Manifold

Proposed Conventional Sextupole for Installation at A0 9/12/03 Meeting Magnetic Parameters – (Dave Harding) Look at measurements preformed. Mechanical – (Mike Mcgee, Bill Robotham) Look at proposed mech. changes from Bill.(Dean) Electrical/Power Supply – (Wolff) Update to power supply needs. Need to know ripple requirements. Installation – (Jim Volk) Mechanical Cable pulls Controls Water Manifold

Proposed Location – A0 F49 Install Here

Location to Install Install upstream of A0 abort block Floor is ground up F49

Other Sextupole Options TESLA MI ISA MR SEXTUPOLE

Accumulator Skew Sextuple Length: 30 in. Bore:4 in. Coil:21 turns Height:15 ¾ in. If turned, ~10 3/4 in. from beam center to edge of steel. Will need to cut feet off and rotate.

Accumulator Skew Sextupole I Vladimir Kashikhin-Technical Review, March 19, 1999 Sextupole Corrector Parameters Type of the magnet skew sextupole Integrated strength 80 T/m Magnet aperture in ( mm ) Magnetic core length 30 in ( m ) Field quality (deviation from the ideal sextupole field) < 0.1 % Good field region diameter 4 in ( mm ) Beam pipe diameter ( OD ) 4 in (101.6 mm ) Copper conductor Conductor dimension ( MA ) in ( mm) Cooling channel diameter in ( 5.83 mm ) Cu effective cross-section mm² Cu resistivity at 20 °C Ω mm²/m Total length per magnet 240 m Total weight per magnet 175 kg

Accumulator Skew Sextupole II Vladimir Kashikhin-Technical Review, March 19, 1999 Winding Parameters Number of turns per coil 21 Number of coils 6 Length of the turn 1.92 m Coil resistance at 20 ºC 8.9 mΩ Winding resistance at 20 ˚C 54 mΩ Voltage drop per magnet 13.5 V ( + 10% extra for current leads) Maximum current 200 A Power dissipation per magnet 2440 W Number of the water cooling circuits 1 Water pressure drop 0.4 MPa Water flow l/s Water temperature rise 32 ˚C Ferromagnetic Core Parameters Core material low carbon steel AISI 1006 Core length 30 in ( 762 mm ) Core weight 580 kg Total magnet weight 800 kg

Spare SSS Magnet at TPL Serial #: SSS001-1