期刊
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
卷 22, 期 2, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TASC.2012.2186135
关键词
Accelerator magnets; proton accelerators; superconducting magnets
资金
- Science and Technology Facilities Council [ST/G008531/1]
- Engineering and Physical Sciences Research Council [EP/E032869/1]
- EPSRC [EP/E032869/1] Funding Source: UKRI
- STFC [ST/G008531/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E032869/1] Funding Source: researchfish
- Science and Technology Facilities Council [ST/G008531/1] Funding Source: researchfish
Most of today's particle accelerators are used in industry or for medical applications, for example, in radioisotope production and cancer therapy. One important factor for these applications is the size of the accelerator, which ideally should be as small as possible. In this respect, fixed-field alternating-gradient accelerators (FFAGs) can be an attractive alternative, which combine the best features of conventional synchrotrons and cyclotrons: FFAGs deliver better performance than synchrotrons while retaining flexibility. Of particular interest are accelerators for protons of moderate energy (0.25-1 GeV) and light ions such as carbon (up to 400 MeV per nucleon), for example, for proton/carbon-ion charged particle therapy or potential future applications such as accelerator-driven subcritical reactors. Due to high magnetic rigidity, a compact machine can be only achieved by using high field superconducting magnets. A disadvantage of FFAGs is that the magnetic elements can be very challenging. Quite often, complicated multipole fields are required, in combination with stringent geometric constraints. In this paper, we demonstrate the advantages of helical coil technology by means of an accelerator for proton therapy.
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