A cyclotron as a high resolution mass spectrometer for fast secondary ions
Creators
- Auger, G.1
- Mittig, W.1
- Lepine-Szily, A.2, 1
- Fifield, L.K.3, 1
- Bajard, M.1
- Baron, E.1
- Bibet, D.1
- Bricault, P.4, 1
- Casandjian, J.M.1
- Chabert, M.1
- Chartier, M.1
- Ferme, J.1
- Gaudard, L.1
- Gillibert, A.5
- Lewitowicz, M.1
- Moscatello, M.H.1
- Orr, N.A.6, 1
- Plagnol, E.7, 1
- Ricault, C.1
- Villari, A.C.C.2, 1
- Feng Yangyong .8, 1
- 1. GANIL, BP 5027, 14021 Caen Cedex (France)
- 2. IFUSP-Universidade de Sao Paulo, C.P.20516, 14098 Sao Paulo (Brazil)
- 3. Dept. of Nuclear Physics, R.S. Phys. S., Australian National University, GPO Box 4, Canberra, ACT 2601 (Australia)
- 4. TRIUMF, 4004 Westbrook Mall, Vancouver, B.C. V6T 2A3 (Canada)
- 5. DAPNIA/SPhN, CEN Saclay, 91190 Gif-sur-Yvette (France)
- 6. LPC-ISMRA, Bld du Marechal Juin, 14050 Caen, Cedex (France)
- 7. IPN Orsay, BP 1, 91406 Orsay Cedex (France)
- 8. Inst. Mod. Phys. Acad. Sinica, No 57 Nanchang Rd Lanzhou (China)
Description
We present the first results from a new method for mass measurements developed using the GANIL coupled cyclotrons, which uses a cyclotron as a high resolution mass spectrometer for fast secondary ions. We report here the results obtained with primary beams of 13.74 MeV/nucleon 15N and 12C, accelerated by the first cyclotron and incident on a Ta target located between the cyclotrons. Reaction products with mass-to-charge ratio of 3 were selected and accelerated by the second cyclotron. The accelerated secondary nuclei were detected in the interior of the second cyclotron using a plastic scintillator located on a radially moving rod. Details of the procedure and results are discussed. When two masses are close enough to be accelerated simultaneously by the second cyclotron, the precision in the measurement of the mass difference is better than 10-6. ((orig.))
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 350
- Journal Issue
- 1-2
- Journal Page Range
- p. 235-243.
- ISSN
- 0168-9002
- CODEN
- NIMAER
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 26011071
- Subject category
- S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- BEAM TRANSPORT; BERYLLIUM 12; BETATRON OSCILLATIONS; BORON 12; CARBON 12 REACTIONS; GANIL CYCLOTRON; HEAVY ION SPECTROMETERS; HELIUM 6; ION DETECTION; LITHIUM 9; MAGNETIC FIELDS; MASS RESOLUTION; MASS SPECTROMETERS; MASS SPECTROSCOPY; MEV RANGE 100-1000; NITROGEN 15 REACTIONS; NUCLEAR FRAGMENTS; PLASTIC SCINTILLATION DETECTORS; SECONDARY BEAMS; TANTALUM 181 TARGET; TRAJECTORIES
- Descriptors DEC
- ACCELERATORS; BEAM DYNAMICS; BEAMS; BERYLLIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BORON ISOTOPES; CHARGED PARTICLE DETECTION; CYCLIC ACCELERATORS; CYCLOTRONS; DETECTION; DYNAMICS; ENERGY RANGE; EVEN-EVEN NUCLEI; HEAVY ION ACCELERATORS; HEAVY ION REACTIONS; HELIUM ISOTOPES; ISOCHRONOUS CYCLOTRONS; ISOTOPES; LIGHT NUCLEI; LITHIUM ISOTOPES; MEASURING INSTRUMENTS; MECHANICS; MEV RANGE; MILLISEC LIVING RADIOISOTOPES; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; OSCILLATIONS; RADIATION DETECTION; RADIATION DETECTORS; RADIOISOTOPES; RESOLUTION; SCINTILLATION COUNTERS; SOLID SCINTILLATION DETECTORS; SPECTROMETERS; SPECTROSCOPY; TARGETS