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DOE OSTI · 1909866

A New PCB Rotating Coil at NSLS-II

Musardo, Marco·Assell, Dan·Avronsart, Julien·Banerjee, Anushka·DePaola, Frank·DiMarco, Joseph·Doom, Lewis·Doose, Charles·Faussete, Richard·Jain, Animesh·Lincoln, Frank·Sharma, Sushil·Tanabe, Toshiya
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Abstract

Several R&D projects are underway at NSLS-II towards an upgrade of its storage ring with a new lattice that will use high field magnets with small bores of 16-22 mm. A large fraction of the high field magnets are expected to be of permanent magnet technology that will require precise magnetic measurements and field harmonics corrections. A new magnetic measurement bench has been built based on a printed circuit board (PCB) coil of 12 mm diameter and 270 mm active length. This PCB coil has the capabil-ity of measuring field quality to a level of 10 ppm of the main field up to the 15th harmonic with a sensitivity between 0.01 m2 and 0.02 m2 at the reference radius of 5 mm. This paper will describe the main features of the rotating coil bench and discuss the measurement results of a permanent-magnet Halbach quadrupole of 12.7 mm bore diameter.

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Musardo, Marco, Assell, Dan, Avronsart, Julien, Banerjee, Anushka, DePaola, Frank, DiMarco, Joseph, Doom, Lewis, Doose, Charles, Faussete, Richard, Jain, Animesh, Lincoln, Frank, Sharma, Sushil, Tanabe, Toshiya. 2022-10-20. A New PCB Rotating Coil at NSLS-II. https://doi.org/10.18429/jacow-napac2022-wepa77

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