Published June 1994
| Version v1
Journal article
Radium, actinides, and their molecular negative ions from a cesium sputter ion source
- 1. IsoTrace Laboratory, Department of Physics, University of Toronto, 60 St. George St., Toronto, Ontario M5S 1A7 (Canada)
- 2. National Ocean Science Accelerator Mass Spectrometry Facility, Woods Hole Oceanographic Institution, Woods Hole, MA 02543 (United States)
- 3. Department of Physics, King Fahd University for Petroleum and Minerals, Dhahran 31261 (Saudi Arabia)
Description
The negative ions of the isotopes 226Ra, 231Pa and 244Pu, produced by a Cs sputter ion source, have been observed for the first time using the IsoTrace heavy element AMS system. The properties of these negative ions have been compared with those of Th and U, and the electron affinities of all these elements (Ra, Th, Pa, Th and Pu) have been found to be similar and greater than 50 meV. Some molecular negative ions of these elements, in particular carbides and oxides, have also been measured. It was found that di-carbide is generally a profitable molecule form for measuring Ra, Th and Pa, while mono-oxide is more efficient for measuring U and Pu. ((orig.))
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms
- Journal Volume
- 92
- Journal Issue
- 1-4
- Journal Page Range
- p. 258-264.
- ISSN
- 0168-583X
- CODEN
- NIMBEU
Conference
- Title
- 6. triennial international conference on accelerator mass spectrometry (AMS-6).
- Dates
- 27 Sep - 1 Oct 1993.
- Place
- Canberra (Australia); Sydney (Australia).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 26014003
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S07: ISOTOPES AND RADIATION SOURCES; S43: PARTICLE ACCELERATORS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AFFINITY; ANIONS; CESIUM; CESIUM IONS; ENERGY SPECTRA; ION BEAMS; ION SOURCES; MASS SPECTROSCOPY; MOLECULAR IONS; PLUTONIUM 244; PROTACTINIUM 231; RADIUM 226; SPUTTERING; TANDEM ELECTROSTATIC ACCELERATORS
- Descriptors DEC
- ACCELERATORS; ACTINIDE NUCLEI; ALKALI METALS; ALPHA DECAY RADIOISOTOPES; BEAMS; CARBON 14 DECAY RADIOISOTOPES; CHARGED PARTICLES; ELECTROSTATIC ACCELERATORS; ELEMENTS; EVEN-EVEN NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; IONS; ISOTOPES; METALS; NEON 24 DECAY RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; PLUTONIUM ISOTOPES; PROTACTINIUM ISOTOPES; RADIOISOTOPES; RADIUM ISOTOPES; SPECTRA; SPECTROSCOPY; SPONTANEOUS FISSION RADIOISOTOPES; YEARS LIVING RADIOISOTOPES