Francium sources at Laboratori Nazionali di Legnaro: Design and performance
Creators
- 1. Dipartimento di Fisica and INFN, 44100 Ferrara (Italy)
- 2. Dipartimento di Fisica and INFN, 56127 Pisa (Italy)
- 3. Dipartimento di Fisica and INFN, 53100 Siena (Italy)
- 4. INFN Laboratori Nazionali di Legnaro, 35020 Legnaro PD (Italy)
Description
A facility for the production of radioactive francium is operating at the laboratories of the Istituto Nazionale di Fisica Nucleare (INFN) in Legnaro, Italy. The goal is to collect a cold sample of radioactive atoms in a magneto-optical trap for studies in atomic, nuclear, and particle physics. Production of francium is achieved via the fusion-evaporation reaction 197Au(18O,kn)215-kFr generated by a ∼100-MeV 18O6+ beam on a thick gold target. The production target is heated to ∼1200 K and kept at a potential of +3 kV to enhance Fr diffusion and surface desorption. Average production rates are 0.7x106 ions/s for 210Fr with a primary beam flux of 1012 particles/s, with peaks of 2x106 ions/s. Details are given on the design and construction of the production targets and on the measurements that characterize their performance
Additional details
Identifiers
- DOI
- 10.1063/1.2163342;
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 77
- Journal Issue
- 3
- Journal Page Range
- p. 03A701-03A7013
- ISSN
- 0034-6748
- CODEN
- RSINAK
Conference
- Title
- 11. international conference on ion sources
- Dates
- 12-16 Sep 2005
- Place
- Caen (France)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37083320
- Subject category
- S43: PARTICLE ACCELERATORS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BEAMS; DESIGN; DESORPTION; EVAPORATION; FRANCIUM; FRANCIUM 210; GOLD; GOLD 197; IONS; MEV RANGE 10-100; OXYGEN 18; PARTICLES; PERFORMANCE
- Descriptors DEC
- ALKALI METALS; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; CHARGED PARTICLES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; ENERGY RANGE; EVEN-EVEN NUCLEI; FRANCIUM ISOTOPES; GOLD ISOTOPES; HEAVY NUCLEI; INTERNAL CONVERSION RADIOISOTOPES; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; METALS; MEV RANGE; MINUTES LIVING RADIOISOTOPES; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; OXYGEN ISOTOPES; PHASE TRANSFORMATIONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SORPTION; STABLE ISOTOPES; TRANSITION ELEMENTS
Optional Information
- Notes
- (c) 2006 American Institute of Physics