Flexible Imaging Diffraction Diagnostic for Laser Experiments (FIDDLE)
Category: Mechanical/Materials
Developers: Lawrence Livermore National Laboratory
Product Description:The Flexible Imaging Diffraction Diagnostic for Laser Experiments (FIDDLE) captures nanosecond-resolution x-ray diffraction “movies” of material phase transitions during laser-driven compression. Using ultrafast hybrid CMOS sensors, it delivers detailed atomic-scale insights into materials response while increasing data efficiency and ensuring reliability in high-energy density experiments. The Flexible Imaging Diffraction Diagnostic for Laser Experiments (FIDDLE) is an x-ray diffraction (XRD) imaging system that can precisely capture material phase transitions occurring on nanosecond timescales. Utilizing ultrafast hybrid CMOS sensors, FIDDLE collects multiple, time-resolved XRD measurements during each shot to produce detailed "movies" of atomic-scale materials responses with an effective “frame rate” of ~2 nanoseconds. This capability increases data efficiency while reducing shot-to-shot variation inherent to multiple experimental runs. FIDDLE obtains XRD measurements in regimes that prove challenging (and damaging) for other imaging systems. It was designed for use at the National Ignition Facility, where laser-driven compression experiments produce extreme temperatures and pressures exceeding one million times that of Earth’s atmosphere. FIDDLE’s advanced shielding protects its sensors from debris, electromagnetic pulses and stray laser light, ensuring reliable performance in such high-energy environments. Using this technology’s capabilities, researchers can better study material properties such as strength, compressibility, and thermal conductivity with high precision in high-energy environments.
Developers: Lawrence Livermore National Laboratory
Product Description:The Flexible Imaging Diffraction Diagnostic for Laser Experiments (FIDDLE) captures nanosecond-resolution x-ray diffraction “movies” of material phase transitions during laser-driven compression. Using ultrafast hybrid CMOS sensors, it delivers detailed atomic-scale insights into materials response while increasing data efficiency and ensuring reliability in high-energy density experiments. The Flexible Imaging Diffraction Diagnostic for Laser Experiments (FIDDLE) is an x-ray diffraction (XRD) imaging system that can precisely capture material phase transitions occurring on nanosecond timescales. Utilizing ultrafast hybrid CMOS sensors, FIDDLE collects multiple, time-resolved XRD measurements during each shot to produce detailed "movies" of atomic-scale materials responses with an effective “frame rate” of ~2 nanoseconds. This capability increases data efficiency while reducing shot-to-shot variation inherent to multiple experimental runs. FIDDLE obtains XRD measurements in regimes that prove challenging (and damaging) for other imaging systems. It was designed for use at the National Ignition Facility, where laser-driven compression experiments produce extreme temperatures and pressures exceeding one million times that of Earth’s atmosphere. FIDDLE’s advanced shielding protects its sensors from debris, electromagnetic pulses and stray laser light, ensuring reliable performance in such high-energy environments. Using this technology’s capabilities, researchers can better study material properties such as strength, compressibility, and thermal conductivity with high precision in high-energy environments.
