2010/12/01 by Y. Hayashi, Yukio Hayashi, Yuji Fukuda +12
Chemistry · Physics and Astronomy · #Advanced X-ray Imaging Techniques #Analytical Chemistry (journal) #Atomic physics #Chemistry #Cluster (spacecraft) #Femtosecond #Irradiation #Laser #Laser-Plasma Interactions and Diagnostics #Nuclear physics #Optics #Photon #Photon energy #Physics #X-ray #X-ray Spectroscopy and Fluorescence Analysis #Yield (engineering)
paper · doi:10.1143/jjap.49.126401
openalex publication_date 2010/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/11
Intense and reproducible Kr Kα X-rays (∼12.7 keV) have been generated via the interaction between a 3 TW laser pulse and a micron-sized Kr cluster target. A single-photon counting technique with an X-ray charge-coupled device (X-ray CCD) was used for measurements of the X-ray energy spectrum in a single shot. At a laser irradiance of 8 ×10 16 W/cm 2 , the averages and standard deviations of the total X-ray yield and Kα X-ray yield were equal to (6.6 ±1.1) ×10 7 and (6.8 ±2.6) ×10 5 photons/sr, respectively. When the X-ray energy spectrum was fit using a Maxwellian with an effective temperature, the temperature was estimated to be 1.62 ±0.08 keV. These results indicate that the X-ray energy spectrum was reproducible at 8 ×10 16 W/cm 2 .