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26 April 2024 |
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Single-particle detection of products from atomic and molecular reactions in a cryogenic ion storage ring | | C. Krantz
; O. Novotný
; A. Becker
; S. George
; M. Grieser
; R. von Hahn
; C. Meyer
; S. Schippers
; K.Spruck
; S.Vogel
; A. Wolf
; | | Date: |
27 Jan 2017 | | Abstract: | We have used a single-particle detector system, based on secondary electron
emission, for counting low-energetic (~keV/u) massive products originating from
atomic and molecular ion reactions in the electrostatic Cryogenic Storage Ring
(CSR). The detector is movable within the cryogenic vacuum chamber of CSR, and
was used to measure production rates of a variety of charged and neutral
daughter particles. In operation at a temperature of ~6 K, the detector is
characterised by a high dynamic range, combining a low dark event rate with
good high-rate particle counting capability. On-line measurement of the pulse
height distributions proved to be an important monitor of the detector response
at low temperature. Statistical pulse-height analysis allows to infer the
particle detection efficiency of the detector, which has been found to be close
to unity also in cryogenic operation at 6 K. | | Source: | arXiv, 1701.8042 | | Services: | Forum | Review | PDF | Favorites | |
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