Spectral analysis of x-ray emission created by intense laser irradiation of copper materials

Journal Article · Mon Oct 15 00:00:00 EDT 2012 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4732181· OSTI ID:22093897

Huntington, C. M.; Kuranz, C. C.; Drake, R. P. ^[1]; Malamud, G. ^[1]; Park, H. -S.; Maddox, B. R. ^[2]

---

1. Atmospheric, Oceanic, Space Science, University of Michigan, Ann Arbor, Michigan 48103 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)

We have measured the x-ray emission, primarily from K{sub {alpha}},K{sub {beta}}, and He{sub {alpha}} lines, of elemental copper foil and 'foam' targets irradiated with a mid-10{sup 16} W/cm{sup 2} laser pulse. The copper foam at 0.1 times solid density is observed to produce 50% greater He{sub {alpha}} line emission than copper foil, and the measured signal is well-fit by a sum of three synthetic spectra generated by the atomic physics code FLYCHK. Additionally, spectra from both targets reveal characteristic inner shell K{sub {alpha}} transitions from hot electron interaction with the bulk copper. However, only the larger-volume foam target produced significant K{sub {beta}} radiation, confirming a lower bulk temperature in the higher volume sample.

• OSTI ID: 22093897
• Journal Information: Review of Scientific Instruments, Vol. 83, Issue 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMIC PHYSICS
COPPER
EMISSION
EMISSION SPECTRA
FOAMS
FOILS
INTERACTIONS
LASER RADIATION
MATERIALS
RADIATION EFFECTS
SOLIDS
X RADIATION
X-RAY SPECTRA