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Aims of modelling in R9

Aims of modelling in R9. General validation of model What fields are the compressors operating in? What is the most accurate way to model compressors? What effect does the partition wall have on the field?. General Validation. 2mm “ mildaverage ” steel. Baseline compressors modelled

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Aims of modelling in R9

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  1. Aims of modelling in R9 • General validation of model • What fields are the compressors operating in? • What is the most accurate way to model compressors? • What effect does the partition wall have on the field?

  2. General Validation 2mm “mildaverage” steel • Baseline compressors modelled • Compare the field maps at an array of points in R9 (49 points) This model has been built. 135kg

  3. What field are the compressors operating in? The modelling done so far predicts that the field around the compressors is ~5 Gauss, and that develops a field in the skin that is ~200 Gauss. However, the Cryogenics group have experience of have operating compressors in similar fields in R9 previously. We need to measure the real field to see if the compressor skin is shielding the motor or if it is just operating ok in that field.

  4. What is the most accurate way to model compressors and racks? • Model compressor in variety of ways: • Single lump mass • Skin with simple mass in centre • Evenly distributed mass • 9lump masses (8 corners and the centre) • Etc. • Measure field in and around compressors and control racks • Compare which model most accurately predicts fields This is future work.

  5. What effect does the partition wall have on the field? • The partition wall has been modelled in a similar way to those in the MICE hall • Measuring the field in and around the wall will give us more confidence in our modelling techniques.

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