A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Jago, S. J.S.

Paper Title Page
WEPC157 A Hybrid Quadrupole Design for the RAL Front End Test Stand (FETS) 2377
 
  • D. C. Plostinar, M. A. Clarke-Gayther
    STFC/RAL/ASTeC, Chilton, Didcot, Oxon
  • P. Davis
    STFC/RAL, Chilton, Didcot, Oxon
  • S. J.S. Jago
    STFC/RAL/ISIS, Chilton, Didcot, Oxon
 
  The Front End Test Stand project being constructed at Rutherford Appleton Laboratory (RAL) aims to deliver a high current (60 mA) H- chopped ion beam, at 3 MeV and 50 pps. The main components of FETS are the H- ion source, the Low Energy Beam Transport line (LEBT), the Radio Frequency Quadrupole (RFQ) and the Medium Energy Transport (MEBT) line with beam chopper. Space restrictions in the MEBT line place constraints on component length and drive the requirement to identify compact component configurations. A description is given of a novel compact hybrid quadrupole magnet, whose design is based on the concentric combination of a permanent magnet quadrupole (PMQ) and a laminar conductor electromagnetic quadrupole (EMQ). Simulations of magnetic field distribution in 2 and 3D are presented, and possible applications and further developments are discussed.