Gradient and harmonic field measurements of the 4Q120 quadrupole
The magnetic field gradients as well as the harmonics of two 4Ql20 quadrupoles were measured utilizing a rotating coil system at Fermilab`s MTF. One magnet was from the 1975 Series, and another from the TeV II Series. For excitation currents where the remnant field is a small fraction of the total, values of the absolute gradient for the latter magnets are typically 2% lower. Among the harmonics, the skew sextupole component has the highest value for both magnets. The harmonic measurements show small differences between the ``power`` and``return`` ends of the magnet.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03000
- OSTI ID:
- 10161487
- Report Number(s):
- FNAL-TM-1785; ON: DE92017736
- Resource Relation:
- Other Information: PBD: Jun 1992
- Country of Publication:
- United States
- Language:
- English
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