Then, in the 2010s, high temperature superconductor (HTS) materials became available as a reliable engineering material, fabricated into long tapes suitable for winding into magnets. The HTS current leads for the ITER Tokamak are procured by the Chinese Domestic Agency through the Institute of Plasma Physics (ASIPP) in Hefei. 22(2012)4002008. HTS also allows the fusion magnets to operate at higher temperatures, greatly reducing the required cooling. Spherical Tokamak. Responsibilities include magnet design, manufacture and testing, project management and team leadership. I lead a team of skilled engineers and technicians on several HTS magnet projects. Senior magnet engineer within Tokamak Energy, developing high temperature superconducting (HTS) magnets for spherical tokamaks. START (Small Tight Aspect Ratio Tokamak) Tokamak Energy aims to accelerate the development of fusion energy by combining two emerging technologies – spherical tokamaks and high-temperature superconductors. ... ST25 HTS. We can build a small tokamak quickly We can extend plasma pulse Long pulses feasible with HTS and RF (micro-wave) current drive A high magnetic field in a small tokamak is the key to compact fusion energy First patent application filed on fusion power from compact spherical tokamak with HTS magnets “Our latest design, ST40, uses copper magnets but is much more of an engineering challenge as we are aiming for exceptionally strong magnetic fields, up to three Tesla at the centre of the plasma,” Kingham says. Bas van Nugteren. ST25-HTS is the first tokamak to use these superconductors for both sets of coils. SPARC will the pave the way for carbon-free, safe, limitless, fusion power. 2. Tokamak Energy grew out of Culham Laboratory, home to JET – the world’s most powerful tokamak – and the world’s leading centre for magnetic fusion energy research. Tokamak Energy’s family tree. Alun Down HTS Magnet Project Engineer at Tokamak Energy Ltd … 2017 to . ST25 HTS: Proved that High Temperature Superconducting (HTS) magnets worked. 2012 to . Mixed … Quench - accompanying presentation Jeroen van Nugteren (JvN) 4. Alun Down. In 2015, the world's first tokamak with HTS magnets – Tokamak Energy's second reactor – demonstrated 29 hours of continuous plasma, which was a world record. 2. All coils (toroidal and poloidal) are wound from YBCO HTS tape. ST25(HTS) In order to gain experience with constructing tokamaks using magnets made from HTS, Tokamak Energy constructed a small but complete tokamak. Furthermore, an YBCO conductor structure suitable for a 10 GJ tokamak TF magnet is designed and the current carrying capacity is evaluated. Spherical Tokamak. In this paper, the application feasibility of HTS tapes on tokamak magnets is discussed and the existing four kinds of HTS high current conductors are summarized. Fischer is particularly interested in how to keep the HTS tapes from degrading. Characteristic magnet behaviour. present. Most importantly, HTS current leads—in a similar way to superconducting magnets—contribute to the positive energy balance of the ITER Tokamak. A tokamak with HTS (for example, Rare-Earth Barium Copper Oxide REBCO)- would allow an increase in B T at the center of the plasma, over LTS technology, from ≈ 5.5T to more than 12T. Tokamak) is well underway. Tokamak Energy. This is the world’s first demonstration of a tokamak magnet where all the magnets are made from HTS. Supercond. In 2015, ST25-HTS ran its magnets and sustained a plasma continuously for 29 hours. By 2019 the ST40 will demonstrate that fusion energy conditions are achievable in a small tokamak. Tokamak Energy HTS magnet test facilities 3. ST25: The spherical tokamak (ST) with a 25cm outside radius of the plasma. A key innovation is that the company combines spherical tokamaks with the latest generation of high temperature superconducting magnets (HTS). A ground-breaking fusion reactor built by Chinese scientists is underscoring Beijing's determination to be at the core of clean energy technology, as it eyes a fully-functioning plant by 2050. Tokamak Energy is deliberately trying to tackle difficult engineering challenges as rapidly as possible, something HTS materials is helping us do. UK. Tokamaks are the most advanced fusion concept in the world, but recent progress has been slow and we need to take an innovative approach to develop fusion faster. Results of the QA magnet programme 1. HTS allows much higher magnetic fields than would be possible from conventional superconductors, enabling a more compact tokamak design. Appl. HTS Cryogenic Engineer at Tokamak Energy Ltd England, United Kingdom. For Tokamak Energy, miniaturisation will then be the goal. energy confinement in STs has a stronger dependence on toroidal field compared to large aspect ratio devices •Tokamak Energy have extended ST scaling to include a size dependence , ℎ (ST,gyro−Bohm)∝ −1 ∗ −3 ∗ −0.53−0.17 −0.35 , ℎ (ST,gyro−Bohm)=0.21 0.54 0.91 −0.38 In construction, due for high temperature testing starting spring 2017. Fischer is particularly interested in how to keep the HTS tapes from degrading. ST40: 40cm plasma radius version. Credit: The Tokamak Energy HTS Magnet Team Simon Bradford, Trevor Husband, Rod Bateman, Chris Buckley, Tony Langtry, Marcel Kruip, Greg Brittles, Rob Slade, Bas van Nugteren Bas van Nugteren HTS Magnet Development Engineer at Tokamak Energy Abingdon. 6. Magnet performance comparison. SPARC is an important step to accelerate the development of commercial fusion energy. Oxfordshire-based Tokamak Energy is working on spherical tokamaks or reactors that use high temperature superconductors (HTS) to contain the plasma in a very strong magnetic field. The MIT Plasma Science & Fusion Center in collaboration with private fusion startup Commonwealth Fusion Systems (CFS). Jonathan Carling, CEO at Tokamak Energy… “Saturated Mode” operation. Dr Rod Bateman, HTS Development Manager, tells us about his work in high temperature superconductor (HTS) magnet development and why it is so exciting for him to work at Tokamak Energy. 3. ST40. Higher B: spatial resolving power ~B3 SMES: Energy Density B2 Small ST, Tokamak Energy, UK Tokamak Energy’s technology revolves around high temperature superconducting (HTS) magnets, which allow for relatively low-power and small-size devices, but high performance and potentially widespread commercial deployment. Currently, some large warships have their own nuclear fission plants – the other form of nuclear energy humankind has used for decades. The factor 2 increase in the cost of current leads due to addition of (still relatively expensive) HTS material is more than offset by the cost savings for cryoplants and power savings during operation. Tokamak Energy's technology revolves around high temperature superconducting (HTS) magnets, which allow for relatively low-power and small-size devices, but high performance and potentially widespread commercial deployment. Tokamak Energy is working with Oxford Instruments to develop and demonstrate the world’s first tokamak with magnets made from high-temperature superconductors (HTS). At the same time we will unveil a large prototype HTS magnet suitable for a tokamak. By combining high-temperature superconducting (HTS) magnets with spherical tokamak technologies, the ST40 reactor is able to produce the perfect conditions for fusion power with plasma temperatures that are even hotter than the centre of the sun. The Tokamak Energy HTS magnet development team answer questions from our followers on their work with high temperature superconductor materials and making high … present. 3.2. Tokamak Energy, 173 Brook Drive, Milton Park, Oxon, OX14 4SD, UK 1. The field at the Tokamak Energy are developing novel HTS technology targeting demonstration of net fusion energy gain in the world's first compact superconducting spherical tokamak: ST-F1. Tokamak Energy. In parallel we are fast-track developing HTS magnet technology for use in our follow-up machine. Defect tolerance 5. It uses REBCO high-temperature superconductor coils in both the toroidal and poloidal field coils. High-Field, High Temperature Superconductor • Electrical Transmission • Electrical Energy Storage •NMR/MRI • Possible upgrades to LHC Dipole Field for Hadron Collider* *L. Bottura, et al., IEEE Trans. HTS also allows the fusion magnets to operate at higher temperatures, greatly reducing the required cooling. All of the ST25 code is new and written specifically for this application; however, we can reuse the code in the ST25(HTS) and future iterations and take full advantage of the NI graphical system design benefits. Tokamak Energy Ltd, UK, is developing spherical tokamaks using high temperature superconductor magnets as a possible route to fusion power using relatively small devices. SPARC. Tokamak Energy has produced two laboratory prototypes, achieving a world first with the ST25 HTS, which demonstrated the use of high temperature superconductor (HTS) magnets. ST25-HTS is a follow on device to ST25. UK. Tokamak Energy grew out of Culham Laboratory, home to JET - the world's most powerful tokamak - and the world's leading centre for magnetic fusion energy research. Fusion energy projects and start-ups around the world are pursuing fusion in different ways. found in systems codes and studies [16,17] and tokamak magnet design studies [18]. HTS allows much higher magnetic fields than would be possible from conventional superconductors, enabling a more compact tokamak design. is developing a conceptual design for SPARC, a compact, high-field, net fusion energy experiment.SPARC would be the size of existing mid-sized fusion devices, but with a much stronger magnetic field. This compact, high-field tokamak will be built with HTS magnets, allowing for a smaller device than previous magnet technology. The following is a list of fusion energy projects pursued by organizations worldwide. 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