2010035f.doc-BaartmanscomputeratTRIUMF.docVIP

Design Note P.O. Box 201 Nelson, BC Date: Design Note No. Canada V1L 5P9 September 28, 2011 2010035 T: 250-352-5162 F: 250-352-3864 Dehnel – Particle Accelerator Components and Engineering, Inc. Prepared for: Prepared by: TRIUMF Morgan Dehnel P.Eng. (Engineering/Physics), Thomas Stewart (Design) REV: A – 28 September 2011 – Morgan Dehnel – Original release. Preliminary Design for ARIEL Strong Conventional Quadrupole Magnet 1. TRIUMF Specified Design Constraints Magnet Type: Quadrupole Type: Strong Pole: Conventional Bore Diameter: 52.0 mm = 2a (a = 26.0 mm) K = BLeff: 1.3 (per September 23, 2011 email from R. Baartman) Remnant B: 10 Gauss Insertion Length: ? 20 cm Magnet Cooling: Indirect Water-Cooling (Refer to D-Pace DN 2010033 Section 2) Reference Documents: - TRI-BN-11-02 (basis for this note) - TRI-DNA-99-5 - TRI-DN-83-10 - ARIEL E-Linac Quadrupoles Preliminary Engineering Designs, Rick Baartman, August 8, 2011 2. General Considerations and Determinations Refer to D-Pace Design Note 2010034, Preliminary Design for ARIEL Medium Round Quadrupole Magnet. The K value of the Strong quadrupole magnet is 2.6 times that of the medium quadrupole magnet. The ARIEL strong quadrupole magnet shall use a similar iron structure as the ARIEL medium quadrupole magnet, but the iron length in the beam direction shall be extended to 121 mm (to be within the machining allowance of a 125 mm C1006 iron plate). This extension of the magnet iron in the beam direction is enough to multiply the effective length by ~2.6 to achieve the larger K value for this the strong magnet. The magnet iron shall be in 4 quadrants and the overall shape of the outer yoke shall be that of an octagon. The coil shall be very similar to the cost-effective, indirectly water-cooled strip-wound coil comprised of Mylar tape and copper tape utilized on the medium quadrupole, except that it will not be w