Background suppression by the DRAGON radiative capture facility at TRIUMF/ISAC

The DRAGON facility at TRIUMF/ISAC detects reaction products following radiative capture of a hydrogen or helium target nucleus by an accelerated heavy ion. Capture reactions of interest in nuclear astrophysics may have reaction rates 10–14 orders of magnitude lower than the intensity of the inciden...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 2008-10, Vol.266 (19-20), p.4171-4175
Main Authors: Hutcheon, D., Buchmann, L., Chen, A.A., D’Auria, J.M., Davis, C.A., Greife, U., Hussein, A., Ottewell, D.F., Ouellet, C.V., Parikh, A., Parker, P., Pearson, J., Ruiz, C., Ruprecht, G., Trinczek, M., Vockenhuber, C.
Format: Article
Language:English
Subjects:
Background suppression
Mass separator
Radiative capture
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Summary:The DRAGON facility at TRIUMF/ISAC detects reaction products following radiative capture of a hydrogen or helium target nucleus by an accelerated heavy ion. Capture reactions of interest in nuclear astrophysics may have reaction rates 10–14 orders of magnitude lower than the intensity of the incident beam: as well as efficiently transporting the heavy reaction product from the target to a suitable particle detector, the separator must provide most of the suppression of unreacted beam. We describe the features of beam background encountered in a range of proton- and alpha-capture experiments at the DRAGON facility.
ISSN:0168-583X
1872-9584
DOI:10.1016/j.nimb.2008.05.133