A NEW METHOD FOR MEASURING THE ABSOLUTE EFFICIENCY OF ISOTOPE-SEPARATION ONLINE SYSTEMS

Authors
LECESNE N VILLARI ACC ANGELIQUE JC BERTRAND P BLANK B CLAPIER F DELASHERAS F DUCOURTIEUX M FOURY P JARDIN P JOUBERT A LEPINESZILY A LEROY R LEWITOWICZ M LIANG CF MANDIN J MARRY C MAUNOURY L OBERT J ORR NA PACQUET JY PARIS P POTIER JC PROUST J PUTAUX JC ROBERT E SAINTLAURENT MG SORTAIS P
Citation
N. Lecesne et al., A NEW METHOD FOR MEASURING THE ABSOLUTE EFFICIENCY OF ISOTOPE-SEPARATION ONLINE SYSTEMS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 126(1-4), 1997, pp. 141-145
Citations number
13
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
126
Issue
1-4
Year of publication
1997
Pages
141 - 145
Database
ISI
SICI code
0168-583X(1997)126:1-4<141:ANMFMT>2.0.ZU;2-N
Abstract
A new method for measuring the absolute efficiency of Isotope Separati on On Line (ISOL) systems is described, The overall efficiency is dedu ced from the ratio between the rate of the radioactive beam detected a fter analysis and the rate of incident radioactive beam in the target, It is shown that the unfolding of the different efficiencies, i,e., d iffusion, effusion, ionisation and transport allows us to deduce the d iffusion constants when the absolute efficiency data is obtained as a function of the target temperature, Using this technique we extracted the fundamental Arrhenius constants for diffusion of Ar and Ne in Carb on targets used in the SIRa experiments at GANIL.