TY - JOUR
T1 - Magnetic field leakage of HTS medical accelerators
AU - Baird, Yvonne
AU - Li, Quan
N1 - Delay in upload due to adminstrator error. Author provided AFPRM on 19/03/20, right before Covid-19 lockdown and while OA admin was off work self-isolating due to flu-like symptoms. The email was overlooked in the subsequent switch to home-working for lockdown. Article has been published Gold Open Access, so that exception has been applied.
PY - 2020/6/19
Y1 - 2020/6/19
N2 - A high temperature superconducting (HTS) magnet used in medical accelerators was designed with combined function for bending and focusing/defocusing, through a layer-by-layer design process. The six-layer combined function magnet produced by the layer-by-layer design process reduces the total volume of HTS material required compared to existing designs, in addition to achieving a precise field. The magnetic field distribution and leakage from the coil ends of the designed combined function magnet were studied, and the effects of changing the length of the coil ends as well as the radius of the layers were compared to the original design, to determine what influence this would have. Results show that shorter coil ends have the smallest leakage magnetic field, and is thus preferred, however due to mechanical constraints of HTS tape there will be a minimum length requirement depending on the design.
AB - A high temperature superconducting (HTS) magnet used in medical accelerators was designed with combined function for bending and focusing/defocusing, through a layer-by-layer design process. The six-layer combined function magnet produced by the layer-by-layer design process reduces the total volume of HTS material required compared to existing designs, in addition to achieving a precise field. The magnetic field distribution and leakage from the coil ends of the designed combined function magnet were studied, and the effects of changing the length of the coil ends as well as the radius of the layers were compared to the original design, to determine what influence this would have. Results show that shorter coil ends have the smallest leakage magnetic field, and is thus preferred, however due to mechanical constraints of HTS tape there will be a minimum length requirement depending on the design.
U2 - 10.1088/1742-6596/1559/1/012122
DO - 10.1088/1742-6596/1559/1/012122
M3 - Article
SN - 1742-6596
VL - 1559
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
M1 - 012122
ER -