التفاصيل البيبلوغرافية
| العنوان: |
Magnetic Field Measurement and Ripple Reduction of Quadrupole Magnets of the J-PARC Main Ring |
| المؤلفون: |
Someya, Hirohiko, Igarashi, Susumu, Nakamura, Shu |
| بيانات النشر: |
JACoW Publishing, Geneva, Switzerland, 2010. |
| سنة النشر: |
2010 |
| مصطلحات موضوعية: |
Physics::Fluid Dynamics, Physics::Popular Physics, Computer Science::Hardware Architecture, 07 Accelerator Technology, T11 Power Supplies, Accelerator Physics |
| الوصف: |
The power supply current ripple of the quadrupole magnets of the J-PARC main ring has been measured to be the order of 10⁻⁴. The magnetic field of the quadrupole magnets has been measured and the ripple frequency distribution of each magnet was observed to be depending on where the magnet is in the magnet chain. A transmission line model for the cable and magnets was able to explain the distribution. The field ripple made by the common mode current ripple was reduced by changing the magnet cabling to be symmetrical with respect to the N and S poles of the quadrupole magnets. The common mode ripple was drastically reduced. The normal mode ripple of 600, 1200 and 1800 Hz however remained. The field ripple was further reduced using resistors those are connected in parallel to the magnet coils and bypass the current ripple. It was effective to the higher frequency ripple of 1200 and 1800 Hz and the effect was in a good agreement with an electric circuit simulation program LTspice.
Proceedings of the 1st International Particle Accelerator Conference, IPAC2010, Kyoto, Japan |
| اللغة: |
English |
| DOI: |
10.18429/jacow-ipac2010-wepd062 |
| URL الوصول: |
https://explore.openaire.eu/search/publication?articleId=doi_________::8311b88319627f068028bb3a8ffd8d90 |
| رقم الانضمام: |
edsair.doi...........8311b88319627f068028bb3a8ffd8d90 |
| قاعدة البيانات: |
OpenAIRE |