An electrostatic storage ring for atomic and molecular science

Tanabe, T.; Chida, K.; Noda, K.; Watanabe, Ikuo

doi:10.1016/s0168-9002(01)01704-1

Cited by 72 publications

(40 citation statements)

References 3 publications

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“…The 6 • deflector (6) directly following the target acts as charge-tomass analyser preceding the movable COMPACT detector (7). The latter can be positioned to intercept the product particles (8) from atomic reactions in the target while allowing the parent ion beam (9) to circulate unhindered in the CSR. In the detector, the product particles hit a secondary-electron emitting cathode (10).…”

Section: Overview Of the Experimental Set-upmentioning

confidence: 99%

“…Based on that success, a new class of heavy-ion storage rings has emerged, with designs that are optimised for experiments on atomic and molecular physics. They use purely electrostatic ion optics, matching the output energy of relatively simple electrostatic injectors that can be flexibly equipped with state-of-the art molecular ion sources [8][9][10]. The most advanced set-ups use cryogenic cooling machines to reduce the temperature of their beam guiding vacuum vessels down to values near that of liquid helium [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Single-particle detection of products from atomic and molecular reactions in a cryogenic ion storage ring

Krantz

Novotný

Becker

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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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.

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Section: Overview Of the Experimental Set-upmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Single-particle detection of products from atomic and molecular reactions in a cryogenic ion storage ring

Krantz

Novotný

Becker

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

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“…In contrast to existing or planned fixed energy electrostatic machines [22][23][24] an rf operated drift tube with voltages<100 V is used in combination with an electron cooler to shape short bunches along the longitudinal direction for in-ring experiments. Details about the USR lattice, its optical elements and the envisaged experiments are given in [25,26].…”

Section: Ring Layoutmentioning

confidence: 99%

FLAIR – a facility for low-energy antiproton and ion research

Welsch

Ullrich

2006

Hyperfine Interact

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In order to exploit the unique possibilities that will become available at the Facility for Antiproton and Ion Research (FAIR) at GSI in Darmstadt, a collaboration of about 50 institutes from 15 countries was formed to efficiently enable an innovative research program towards low-energy antimatter-physics. In the Facility for Low-energy Antiproton and Ion Research (FLAIR) antiprotons and heavy (radioactive) ions are slowed down from 30 MeV to energies as low as 20 keV by a magnetic low-energy storage ring (LSR) and an electrostatic ultra-low energy storage ring (USR) or are even brought to rest by a universal trap facility (HITRAP). In this paper, the facility and the research program covered are briefly described with some emphasis on the accelerator chain and the expected particle numbers.

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“…It is expected that the larger nonlinear component of the dispersion suppressor limits the dynamic aperture and causes resonances. The effect of such nonlinear components is evaluated from the experimental result of the KEK electrostatic storage ring [30]. The Hamiltonian of the electrostatic deflector of the electrostatic storage ring is also easily given, if the polarity of the scalar potential is reversed and the vector potential of the magnetic field is eliminated from the Hamiltonian (3) and the equilibrium condition (7).…”

Section: Consideration Of the Nonlinear Effectmentioning

confidence: 99%

Heavy ion storage ring without linear dispersion

Ikegami

Noda

Tanabe

et al. 2004

Phys. Rev. ST Accel. Beams

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A possible method to realize a dispersion-free storage ring is described. The simultaneous use of a magnetic field B and an electric field E in bending regions, where the two fields are set perpendicular to each other, enables us to control the effect of momentum dispersion. When the relation 1 1= 2 0 E ÿv 0 B is satisfied for a beam with the velocity v 0 , the linear dispersion can be completely eliminated all around the ring. It is shown that the acceleration and deceleration induced by the electrostatic deflector counteracts the heating mechanism due to the shearing force from dipole magnets. The dispersion-free system is thus beneficial to producing ultracold beams. It looks probable that the technique will allow one to achieve three-dimensional crystalline beams. At ICR Kyoto University, an ion cooler storage ring S-LSR oriented for various beam physics purposes is now under construction. The application of the present idea to S-LSR is discussed and the actual design of the dispersionless bend is given.

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An electrostatic storage ring for atomic and molecular science

Cited by 72 publications

References 3 publications

Single-particle detection of products from atomic and molecular reactions in a cryogenic ion storage ring

Single-particle detection of products from atomic and molecular reactions in a cryogenic ion storage ring

FLAIR – a facility for low-energy antiproton and ion research

Heavy ion storage ring without linear dispersion

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