Measurement of ground state copper density using hook spectroscopy

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:6343257

Molander, W A

The density of ground state copper atoms has been measured in an operating large-bore copper laser using hook spectroscopy. In this method, dispersion, due to the copper resonance lines at 327.4 nm and 324.7 nm, is measured by placing the copper laser tube in one arm of a Mach-Zehnder interferometer illuminated by a broad bandwidth UV source. The light source was a Nd:YAG-laser-pumped dye laser which was modified to have a 15 nm bandwidth and then frequency doubled in a 3 mm thick KDP crystal, resulting in a UV beam with an 8 nm bandwidth. The Nd:YAG laser was synchronized with the copper laser, allowing a time resolution of 8 ns. Copper density was measured both as a function of time and as a function of radial position across the bore of the tube. The radial resolution was about 2mm. The space-dependent data gives information about the gas temperature distribution since the density is inversely proportional to the temperature. The gas temperature distribution found in this way agrees well with the predictions of a simple heat-conduction model which assumes uniform power deposition. The power deposition found in this way was compared to that found by calorimetry. 7 figs., 10 refs.,

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6343257
• Report Number(s): UCRL-99003; CONF-890145-17; ON: DE89005098
• Resource Relation: Conference: SPIE conference on optics, electro-optics and laser applications in science and engineering: OE/LASE '89, Los Angeles, CA, USA, 15 Jan 1989; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
36 MATERIALS SCIENCE
COPPER
DENSITY
GROUND STATES
LASERS
MEASURING METHODS
ELECTRON TEMPERATURE
EXPERIMENTAL DATA
NEODYMIUM LASERS
SPECTROSCOPY
DATA
ELEMENTS
ENERGY LEVELS
INFORMATION
METALS
NUMERICAL DATA
PHYSICAL PROPERTIES
SOLID STATE LASERS
TRANSITION ELEMENTS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
360104 - Metals & Alloys- Physical Properties