Record number :
94281
Title of article :
Modulated double-helix quadrupole magnets
Author/Authors :
C.L.، Goodzeit, نويسنده , , M.J.، Ball, نويسنده , , R.B.، Meinke, نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
-1368
From page :
1369
To page :
0
Abstract :
We describe a new technology for superconducting quadrupole magnets especially for use in particle accelerators. The principle is based on the application of a sinusoidal modulation to the axial positions of the conductor windings in solenoids. The method can also be employed to produce higher-order multipole fields. Due to their solenoid-like geometry, these coils are significantly simpler to manufacture than standard (racetrack) cosine-2-theta coils and have significantly smaller systematic field errors without using any field-shaping spacers. When two complementary coil layers (with opposite current flow) are combined, the solenoid components of the fields are cancelled and the quadrupole or higherorder fields add. An example of such a design is described which generates a gradient of 130 T/m with systematic errors less than 10/sup -8/ at 67% of the aperture.
Keywords :
Cretan Mediterranean diet , folate , homocysteine , Ischaemic heart disease
Journal title :
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Serial Year :
2003
Link To Document :
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