Recoil separator ERNA: ion beam purification

Citation
D. Rogalla et al., Recoil separator ERNA: ion beam purification, NUCL INST A, 437(2-3), 1999, pp. 266-273
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
0168-9002 → ACNP
Volume
437
Issue
2-3
Year of publication
1999
Pages
266 - 273
Database
ISI
SICI code
0168-9002(19991121)437:2-3<266:RSEIBP>2.0.ZU;2-N
Abstract
For improved measurements of the key astrophysical reaction C-12(alpha, gam ma)O-16 in inverse kinematics, a recoil separator ERNA is developed to dete ct directly the O-16 recoils with nearly 100% efficiency. Since the C-12 pr ojectiles and the O-16 recoils have essentially the same momentum and since the C-12 ion beam emerging from an accelerator usually passes through a mo mentum filter, a sufficient absence of an O-16 beam contaminant in the C-12 ion beam is of utmost importance for ERNA. In the present work, a Wien fil ter together with a Delta E - E telescope are used to investigate the beam contaminants accompanying a momentum-filtered C-12 ion beam and to measure the level of ion beam purification achievable with the Wien filter. (C) 199 9 Elsevier Science B.V. All rights reserved.