Stuttgart 2012 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MS: Fachverband Massenspektrometrie
MS 6: Poster
MS 6.10: Poster
Dienstag, 13. März 2012, 16:30–19:00, Poster.IV
A Converter-Plate Ion-Counting Detector for the Cryogenic Storage Ring — •Kaija Spruck1, Arno Becker2, Klaus Blaum2, Claude Krantz2, Alfred Müller1, Oldřich Novotný3, Stefan Schippers1, Andrey Shornikov2, and Andreas Wolf2 — 1Institut für Atom- und Molekülphysik, Leihgesterner Weg 217, 35392 Giessen — 2Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg — 3Columbia Astrophysics Laboratory, 550 West 120th Street, New York, NY 10027, USA
The electrostatic Cryogenic Storage Ring (CSR), currently under construction at the Max-Planck-Institute for Nuclear Physics in Heidelberg, will allow for experiments with atomic, molecular and cluster ions of 300 keV or lower energy in extremely high vacuum (XHV) conditions. XHV will be achieved by cryopumping at 2 K in a chamber kept at about 10 K. Collisions of the stored ions with photons, electrons, or neutral heavy particles will lead to reaction products with masses and/or charge states that differ from those of the primary particles. For the detection of the reaction products a high-efficiency single-particle detector based on a converter plate and electron detection by a microchannel plate detector has been designed and is currently being tested. It has a sensitive area of ∼20×50 mm2 and will be mounted on a translation stage with a travel range of up to ∼40 cm inside the cryogenic XHV. The layout is compatible with the cryogenic operating conditions and a high-temperature bakeout of up to ∼250∘C.