Laser spectroscopy of radioactive barium and strontium isotopes

Thesis/Dissertation · Wed Jan 01 00:00:00 EST 1986

OSTI ID:6266953

Martin, A G

An atomic beam system and a high resolution computer controlled dye laser system were developed to perform isotope shift measurements on accelerator-produced radioactive isotopes. Two different techniques were used to transport the radioactive isotopes to the laser interaction region. The first technique was based on the thermalization and deionization of the nuclear reaction products in a helium buffer gas. The reaction products were subsequently transported in the gas to the laser beam along a capillary tube. This technique suffered from problems with chemical reactions between impurities in the buffer gas and the reaction products and proved to be unsuccessful. The second technique was based on the implantation of the reaction products into a metal lattice. Subsequent heating of the metal lattice released the implanted ions from which an atomic beam was formed. The photon burst technique was used to enable detection of the extremely weak atomic beams formed in this manner. Measurements were performed of the known isotope shifts of radioactive /sup 128/Ba and /sup 126/Ba to test the sensitivity of the system. The previously unmeasured isotope shift of radioactive /sup 82/Sr also was determined, and the result obtained was compared to predictions using the droplet model.

• Research Organization: Rochester Univ., NY (USA)
• OSTI ID: 6266953
• Resource Relation: Other Information: Thesis (Ph. D.)
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BARIUM
SPECTRAL SHIFT
STRONTIUM
BARIUM 126
BARIUM 128
DROPLET MODEL
DYE LASERS
EXPERIMENTAL DATA
ION IMPLANTATION
LASER SPECTROSCOPY
METALS
SENSITIVITY
STRONTIUM 82
ALKALINE EARTH ISOTOPES
ALKALINE EARTH METALS
BARIUM ISOTOPES
BETA DECAY RADIOISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-EVEN NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOTOPES
LASERS
LIQUID LASERS
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEI
NUMERICAL DATA
RADIOISOTOPES
SPECTROSCOPY
STRONTIUM ISOTOPES
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory