1. 1 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: budgets 1 Budget for dipoles (2014-2016) document FAIR-SFRS-magnetic_measurement_EVM.xls : - 80 Kchf fluxmeter - 60 Kchf supports and transport system - 160 Kchf electronics Total time budget for the series: 10 days per magnet of cold test Total time budget for the pre-series: 6 months

2. 2 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: costs 2 Time costsdays Instrument installation, check and positioning1 Pre-cycling for 1 current level0.03 Measurement cycle 1 level0.01 Instrument displacement to next vertical position0.12 Configure next measurement cycle0.03 Data analysis2 Assuming all signals from coils acquired in parallel for each longitudinal part Steps to be repeated for each current level (5) time the number of vertical planes (3) time the number of parts (3) Total measurement time 10.2 days per magnet Acquiring in parallel the three parts can reduce the time, but how much does it cost?

3. 3 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: costs 3 CostsKchf Fluxmeter support10 PCB board design2 PCB production (per board)25 installation2 For 3 parts fluxmeter (1+1 spare) - 6 boards - 2 supports - 2 installation To cover the whole GFR with 30 mm resolution need 15 coils per board Total cost for the two fluxmeters 176 Kchf

4. 4 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: costs 4 CostsKchf Integrator (metrolab price)10 Electronic rack (pcs,monitors etc)5 Software, commissioning, testing30 - 45 FDIs (to acquire in parallel) - 4 racks - software 500 Kchf for electronics Electronics -Possible use of DAQ cards: -At least 18 bits ADC -Simultaneous sampling -At least 16 channel per card -Antialiasing input filter -Signal range down to mV - Available on the market at 12.5 Kchf per card 24 bits (50 Kchf in total) - Completely New software development - Any knowledge about performance as integrator, noise levels, offsets and data transfer speed - Data storing/managing (half of FDI sample rate…~12 GB/meas. cycle) - FDI CERN can reach the goal of 5*10 -5 - 4 racks in parallel with 45 FDI never tested at CERN - Is it possible to reduce the price with new FDI?

5. 5 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: 3 parts measurement conclusions 5 Measure the three different parts in 3 different time will not fit the 10 days Build a fluxmeter in 3 parts and acquire all the signal at the same time will explode the budget for the fluxmeter and of the electronics using FDIs. A such large amount of FDI used in parallel never tested before. Market available multichannel acquisition systems not really suitable. No warranties about the + 5 units requirements on the absolute integral due to assembly error of 3 consecutive parts and holes between parts

6. 6 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: Option 2 6 ΔBΔB ΔsΔs v Example: 1280 turns coil PCB multilayer 32 surface 20 * 100 mm speed 200 mm/s >0.8 V Sliding coils 16 s full scan for each current level Possible to move on a curved path standard CERN manufactured coils can be also used

7. 7 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS dipoles: Option 2 7 Sliding coils Full integral and longitudinal field profiles at each measurement (3 part integral field measurements fulfilled ) Offset and gain correction at each measurements (NMR measurement in the magnet center)

8. 8 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS Multiplets 8 Mole “style” MRU with slight modification to the connections could fit in the tube Encoder and inclinometer inside the shaft 1 segment to measure the longest quad and a small coil for the scan Standard coils configuration for compensation of dipole and quad, use of amplifier for the sextupole. Is it possible also for the short coils? To reduce the shaft weight is we can think about a 1 PCB board with radial coils (large scale of Joe Di Marco’s design) 2.5 m 0.01 m MRU far from stray field

9. 9 Magnetic measurements proposal of the FAIR magnets Magnetic Measurements of Super-FRS Multiplets 9 The length of the shaft can be reduced by half (almost standard design 1.2 m) despite of increasing the number of measurement per magnets (2 for the long and short quads) In this case a fix size “rallonge” is needed (1.2 m ) to avoid that the MRU is in the field. In-situ calibration of the integral coil radius and surface possible only if have a x-y shaft positioning system of the whole tube. Is it really needed? Is a such large reference magnet available? Can PCB coils provide the required accuracy without calibration?