Report of the Basic Energy Sciences Workshop on the Future of Electron Sources, September 8-9, 2016
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Univ. of California, Los Angeles, CA (United States)
- Dept. of Energy (DOE), Washington DC (United States). Office of Science. Basic Energy Sciences
Electron sources represent an enabling technology for all cutting-edge applications of electron accelerators, two of the most notable ones being the X-ray free electron laser (FEL) and the electron microscope. FELs were enabled by the development of high-brightness electron sources, and they have changed the paradigm for a broad spectrum of scientific research. Electron microscopes have achieved sub-Å spatial resolution through the introduction of a cold field-emitter and aberration correction optics. Further development of these tools to atomic spatial and temporal resolutions is needed to advance atomic and molecular sciences to new levels of precision. Though the field of electron sources is quite mature, both revolutionary and evolutionary advances in electron sources are needed. On September 8-9, 2016, BES sponsored a Workshop on the Future of the Electron Source at SLAC National Accelerator Laboratory. The goal of the workshop was to define the electron source requirements for future XFELs, UED and UEM, and to identify future research and development (R&D) opportunities. More than sixty participants from U.S. national laboratories, academia, and international institutions attended the workshop. The workshop started with four plenary talks covering the status of electron sources, and highlighting the most urgent needs of future X-ray and electron scattering facilities. The talks made it evident that significant progress in electron sources will not only maximize the impact of current facilities, but also enable novel capabilities that can help maintain the U.S. leadership in X-ray and electron-based scattering instrumentation. Four breakout panels addressed the major technical areas of electron sources: (1) science and technology of electron generation, (2) continuous wave (CW) electron sources, (3) pulsed electron sources, and (4) exotic electron sources. Prior to the workshop, the panel co-chairs polled the panelists and other experts in the field and invited them to make recommendations on the most promising ways to advance the field of electron sources. During the workshop, each panel reviewed the proposals and novel ideas submitted. These summaries of the discussions on scientific needs and instrument requirements and their recommendations form the basis of this report.
- Research Organization:
- USDOE Office of Science (SC) (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI ID:
- 1616511
- Country of Publication:
- United States
- Language:
- English
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