/sup 205/T1 experiment
/sup 205/Tl has been previously proposed as a geological detector for solar neutrinos, making use of the reaction /sup 205/Tl(..nu..,e/sup -/)/sup 205/Pb with a neutrino threshold of only approx. =43 keV. We report on an experiment performed to study the feasibility of detecting radioactive /sup 205/Pb nuclei (T/sub 1/2/ = 15 million years) at very low concentrations using the recently developed technique of accelerator mass spectrometry. Empolying the high-energy ion beams of good quality from the UNILAC heavy-ion accelerator at the GSI Darmstadt, we are able to demonstrate a suppression of neighbouring isotopes to better than 1 in 10/sup 16/ and of neighbouring elements to about 1 in 10/sup 3/. While these results are very encouraging, the minimum number of atoms detectable is still severely limited by the efficiency of producing mulitply-charged ions from present ion sources. Future improvements in ion-source performance are briefly discussed.
- Research Organization:
- Argonne National Laboratory, Argonne, IL 60439, USA
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5656228
- Report Number(s):
- CONF-8408132-
- Journal Information:
- AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 126:1; ISSN APCPC
- Country of Publication:
- United States
- Language:
- English
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
640104 -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BETA DECAY
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY
CAPTURE
CHARGED-PARTICLE REACTIONS
DECAY
DETECTION
DIRECT REACTIONS
ELECTRON CAPTURE
ELECTRON CAPTURE DECAY
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KINETICS
LEAD 205
LEAD ISOTOPES
LEPTON REACTIONS
LEPTONS
MASS SPECTROMETERS
MASS SPECTROSCOPY
MASSLESS PARTICLES
MEASURING INSTRUMENTS
NEUTRINO DETECTION
NEUTRINO REACTIONS
NEUTRINOS
NUCLEAR REACTION KINETICS
NUCLEAR REACTION YIELD
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
QUASI-FREE REACTIONS
RADIATION DETECTION
RADIATIONS
RADIOISOTOPES
REACTION KINETICS
SECONDS LIVING RADIOISOTOPES
SOLAR NEUTRINOS
SOLAR PARTICLES
SOLAR RADIATION
SPECTROMETERS
SPECTROSCOPY
STABLE ISOTOPES
STELLAR RADIATION
TARGETS
THALLIUM 205
THALLIUM 205 REACTIONS
THALLIUM 205 TARGET
THALLIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
YIELDS