A5070499892- Diamond and Carbon-based Materials Research
- Atomic and Subatomic Physics Research
- Particle accelerators and beam dynamics
- Advanced X-ray Imaging Techniques
- Advanced Electron Microscopy Techniques and Applications
- Electronic and Structural Properties of Oxides
- Plasma Diagnostics and Applications
University of California, Santa Cruz
2022-2024
X-ray free-electron lasers (XFELs) deliver pulses of coherent X-rays on the femtosecond time scale, with potentially high repetition rates. While XFELs provide peak intensities, both intensity and centroid beam fluctuate strongly a pulse-to-pulse basis, motivating high-rate diagnostics that operate over large dynamic range. The fast drift velocity, low absorption radiation tolerance properties chemical vapour deposition diamonds make these crystals promising candidate material for developing...
Needs arising at both current and future accelerator facilities call for the development of radiation-hardened position-sensing diagnostics that can operate with multi-GHz repetition rates. Such instruments are likely to also have applications in diagnosis rapid plasma behavior. Building on recent work our Advanced Accelerator Diagnostics Collaboration, we exploring integrated ionizing particle detection systems based chemical-vapor deposition diamond sensors, initial goal producing a...
The composition and performance of three different diamond sensor based pass-through diagnostics are presented. A position-sensitive quadrant was designed characterized using the XPP beam at SLAC LCLS, demonstrating a generated-charge resolution 0.025 pC position sensitivity 2 μm, measurable pulse-by-pulse repetition rate up to 50 MHz. compact signal path capable rates 1 GHz used characterize charge collection properties sensors as function density electron-hole pairs created within sensor,...