Integrable optics design principles for beam halo suppression in accelerator rings at the intensity frontier
Accelerator and beam physics (ABP) is the science of the motion, generation, acceleration, manipulation, prediction, observation and use of charged particle beams. This Phase 2a SBIR project has directly supported and advanced the following ABP missions of the US Department of Energy, Office of Science, Office of High Energy Physics: 1. Advance the physics of beams to enable future accelerators, 2. Develop concepts and tools to disrupt costly technology paradigms, 3. Fully exploit science at beam R\&D facilities and operational accelerators, and 4. Educate and train future accelerator physicists. The Integrable Optics Test Accelerator (IOTA) program at Fermi National Accelerator Laboratory (Fermilab) is an R&D facility for the exploration of novel concepts, such as nonlinear integrable optics, which promise to directly impact the development of future hadron rings that can advance both the Intensity Frontier and the Energy Frontier. This Phase 2a SBIR project provided important computational support for IOTA. We developed techniques and software (https://github.com/radiasoft/rssynergia) for using Synergia, the premier Fermilab code for simulation and design of high-intensity hadron rings, to simulate the highly nonlinear features of beam dynamics in IOTA. This supported missions 1, 2 and 3 above. We also conducted extensive simulations of IOTA under many configurations, enabling key contributions to initial IOTA commissioning. This supported mission 3. This Phase 2a SBIR project also enabled the development of a mathematical foundation for when and why a spectral space charge algorithm enables symplectic treatment of both self-fields and particle dynamics. A symplectic algorithm respects the conservation of phase space volume and many other important physical invariants. This algorithm has been implemented in Python for testing (https://github.com/radiasoft/rssympim) and has also been implemented using C++ in Synergia. We also developed efficient open boundary conditions for spectral Cartesian Poisson solvers. This supported mission 2. The successes described above enabled us to collaborate with Fermilab scientists in the prototype design of a novel hadron synchrotron, building on the nonlinear optics techniques that are being explored in IOTA.This supported mission 1 above. This project developed a robust email-based login mechanism for our Sirepo scientific gateway (https://sirepo.com),enabling the move from beta to production and subsequent productization of this cloud computing technology. We also developed a sophisticated browser-based GUI for Synergia (https://www.sirepo.com/synergia) which closely parallels the elegant implementation (https://www.sirepo.com/elegant). These Sirepo-based webb applications are actively used by particle accelerator schools in Korea and in the US. This supported mission 4 above. Commercialization activities enabled by this project include the following. We are finding customers who want Sirepo-based GUIs to be developed for their scientific codes. We are assisting customers on a contract R&D basis with particle accelerator design. We have begun a sales effort for a subscription-based premium version of the Sirepo.com scientific gateway (https://radiasoft.net/sirepo).
- Research Organization:
- RadiaSoft LLC, Boulder, CO (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Engineering & Technology. Office of Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs
- DOE Contract Number:
- SC0011340
- OSTI ID:
- 1591641
- Type / Phase:
- SBIR (Phase I)
- Report Number(s):
- DOE-RS-11340-Ph2A-Final-Report
- Country of Publication:
- United States
- Language:
- English
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