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Title: Total efficiency of an isotope-separator-on-line production system based on an electron cyclotron resonance ion source associated with a carbon target: The case of SPIRAL 1

Abstract

An original approach to the time behavior of an isotope-separator-on-line production system is proposed in the case of a production system where the target and the ion source are connected through a conductance much larger than that of the exit hole of the source. One major goal of this article is to derive the analytical expression of the response time of the system for noble gases from statistical parameters only, which can be deduced from a few simple measurements. The validity limits of the expression of the total efficiency are given, and the calculations are compared to the results obtained at GANIL during operation of SPIRAL 1, using a carbon target close coupled to a multicharged electron cyclotron resonance ion source. The final analytical expression for the total efficiency shows that the usual product of diffusion efficiency, effusion efficiency, and ionization efficiency cannot be applied in our case. We show how it is possible to predict the atom-to-ion transformation efficiency for radioactive isotopes of noble gas using response times measured for stable isotopes.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [3]
  1. Grand Accelerateur National d' Ions Lourds (GANIL), Boulevard Henri Becquerel, B. P. 55027, 14076 Caen Cedex 5 (France)
  2. (CEN) de Saclay, 91191 Gif sur Yvette Cedex (France)
  3. (GANIL), Boulevard Henri Becquerel, B. P. 55027, 14076 Caen Cedex 5 (France)
Publication Date:
OSTI Identifier:
20779030
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 77; Journal Issue: 3; Conference: 11. international conference on ion sources, Caen (France), 12-16 Sep 2005; Other Information: DOI: 10.1063/1.2176680; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; CARBON; CYCLOTRON RESONANCE; ECR ION SOURCES; EFFICIENCY; GANIL CYCLOTRON; IONS; ISOTOPE SEPARATION; ISOTOPE SEPARATORS; RADIOISOTOPES; RARE GASES; STABLE ISOTOPES

Citation Formats

Jardin, P., Eleon, C., Farabolini, W., Boilley, D., Dubois, M., Gaubert, G., Cornell, J.C., Huet-Equilbec, C., Lecesne, N., Leroy, R., Pacquet, J.Y., Saint Laurent, M.G., Villari, A.C.C., Centre d' Etudes Nucleaires, and Grand Accelerateur National d' Ions Lourds. Total efficiency of an isotope-separator-on-line production system based on an electron cyclotron resonance ion source associated with a carbon target: The case of SPIRAL 1. United States: N. p., 2006. Web. doi:10.1063/1.2176680.
Jardin, P., Eleon, C., Farabolini, W., Boilley, D., Dubois, M., Gaubert, G., Cornell, J.C., Huet-Equilbec, C., Lecesne, N., Leroy, R., Pacquet, J.Y., Saint Laurent, M.G., Villari, A.C.C., Centre d' Etudes Nucleaires, & Grand Accelerateur National d' Ions Lourds. Total efficiency of an isotope-separator-on-line production system based on an electron cyclotron resonance ion source associated with a carbon target: The case of SPIRAL 1. United States. doi:10.1063/1.2176680.
Jardin, P., Eleon, C., Farabolini, W., Boilley, D., Dubois, M., Gaubert, G., Cornell, J.C., Huet-Equilbec, C., Lecesne, N., Leroy, R., Pacquet, J.Y., Saint Laurent, M.G., Villari, A.C.C., Centre d' Etudes Nucleaires, and Grand Accelerateur National d' Ions Lourds. Wed . "Total efficiency of an isotope-separator-on-line production system based on an electron cyclotron resonance ion source associated with a carbon target: The case of SPIRAL 1". United States. doi:10.1063/1.2176680.
@article{osti_20779030,
title = {Total efficiency of an isotope-separator-on-line production system based on an electron cyclotron resonance ion source associated with a carbon target: The case of SPIRAL 1},
author = {Jardin, P. and Eleon, C. and Farabolini, W. and Boilley, D. and Dubois, M. and Gaubert, G. and Cornell, J.C. and Huet-Equilbec, C. and Lecesne, N. and Leroy, R. and Pacquet, J.Y. and Saint Laurent, M.G. and Villari, A.C.C. and Centre d' Etudes Nucleaires and Grand Accelerateur National d' Ions Lourds},
abstractNote = {An original approach to the time behavior of an isotope-separator-on-line production system is proposed in the case of a production system where the target and the ion source are connected through a conductance much larger than that of the exit hole of the source. One major goal of this article is to derive the analytical expression of the response time of the system for noble gases from statistical parameters only, which can be deduced from a few simple measurements. The validity limits of the expression of the total efficiency are given, and the calculations are compared to the results obtained at GANIL during operation of SPIRAL 1, using a carbon target close coupled to a multicharged electron cyclotron resonance ion source. The final analytical expression for the total efficiency shows that the usual product of diffusion efficiency, effusion efficiency, and ionization efficiency cannot be applied in our case. We show how it is possible to predict the atom-to-ion transformation efficiency for radioactive isotopes of noble gas using response times measured for stable isotopes.},
doi = {10.1063/1.2176680},
journal = {Review of Scientific Instruments},
number = 3,
volume = 77,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}