scholarly journals Ring-based electron cooler for EIC

2020 ◽  
Author(s):  
He Zhao ◽  
Jorg Kewisch ◽  
M. Blaskiewicz ◽  
A. Fedotov
Keyword(s):  
Electron Cooler

scholarly journals Stable operation of a high-voltage high-current dc photoemission gun for the bunched beam electron cooler in RHIC

2020 ◽  
Vol 23 (1) ◽  
Author(s):  
X. Gu ◽  
Z. Altinbas ◽  
S. Badea ◽  
D. Bruno ◽  
L. Cannizzo ◽  
...  
Keyword(s):  
High Voltage ◽  
Stable Operation ◽  
High Current ◽  
Electron Cooler ◽  
Beam Electron

Guidage d'un faisceau de particules chargées à travers une chaîne de solénoïdes cylindriques et toroïdaux alternés

1985 ◽  
Vol 63 (8) ◽  
pp. 1098-1104
Author(s):  
Giulio Bosi ◽  
Alain Durand
Keyword(s):  
Distribution Function ◽  
Space Charge ◽  
Axial Symmetry ◽  
Fringe Field ◽  
Suitable Choice ◽  
Space Charge Effects ◽  
Electron Cooler ◽  
Charge Effects ◽  
Angular Extent ◽  
Transverse Temperature

The present paper is devoted to analyzing the magnetic fringe-field and space-charge effects on a beam of nonrelativistic electrons crossing a sequence of cylindrical and toroidal solenoids, as may be found in an electron cooler. The investigation is mainly aimed at searching for suitable conditions that ensure conservation of the axial symmetry of a given beam throughout the whole system. The need for a vertical steering field, in addition to the longitudinal one provided by each toroidal coil, is emphasized and its form determined. A suitable choice of the angular extent of a torus is shown to suppress axis vibrations at the entrance of the following sector. Finally, the transverse temperature of a cylindrical beam is calculated after specifying the appropriate distribution function.

Budker INP Proposals for HESR and COSY Electron Cooler Systems

2006 ◽  
Author(s):  
V. Bocharov
Keyword(s):  
Electron Cooler

State-selective dielectronic-recombination measurements for He-like oxygen ions in an electron cooler

1989 ◽  
Vol 62 (23) ◽  
pp. 2656-2659 ◽  
Author(s):  
L. H. Andersen ◽  
P. Hvelplund ◽  
H. Knudsen ◽  
P. Kvistgaard
Keyword(s):  
Dielectronic Recombination ◽  
Electron Cooler ◽  
Oxygen Ions

scholarly journals Development of MUSES-ACR electron cooler

2003 ◽  
Author(s):  
T. Tanabe ◽  
T. Rizawa ◽  
K. Ohtomo ◽  
T. Katayama
Keyword(s):  
Electron Cooler

A high-efficiency collector for a high-voltage electron cooler

2013 ◽  
Vol 56 (3) ◽  
pp. 256-264
Author(s):  
M. I. Bryzgunov ◽  
A. V. Ivanov ◽  
V. M. Panasyuk ◽  
V. V. Parkhomchuk ◽  
V. B. Reva
Keyword(s):  
High Voltage ◽  
High Efficiency ◽  
Electron Cooler ◽  
Voltage Electron ◽  
High Voltage Electron

Astrochemical studies at the Cryogenic Storage Ring

2019 ◽  
Vol 377 (2154) ◽  
pp. 20180412 ◽  
Author(s):  
H. Kreckel ◽  
O. Novotný ◽  
A. Wolf
Keyword(s):  
Storage Ring ◽  
Nuclear Physics ◽  
Molecular Ions ◽  
Rate Coefficients ◽  
Max Planck ◽  
Electron Recombination ◽  
Interstellar Molecule ◽  
Electron Cooler ◽  
Cryogenic Storage ◽  
Main Research

The new Cryogenic Storage Ring at the Max Planck Institute for Nuclear Physics (Heidelberg, Germany) has recently become operational. One of the main research areas foreseen for this unique facility is astrochemical studies with cold molecular ions. The spontaneous radiative cooling of the prototype interstellar molecule CH + to its lowest rotational states has been demonstrated by photodissociation spectroscopy, paving the way for experiments under true interstellar conditions. To this end, a low-energy electron cooler and a neutral atom beam set-up for merged beams studies have been constructed. These experiments have the potential to provide energy-resolved rate coefficients for fundamental astrochemical processes involving state-selected molecular ions. The main target reactions include some of the key processes of interstellar chemistry, such as the electron recombination of H 3 + , charge exchange between H 2 + and H, or the formation of CH + in collisions of triatomic hydrogen ions and C atoms. This article is part of a discussion meeting issue ‘Advances in hydrogen molecular ions: H 3 + , H 5 + and beyond’.

A liquid-helium-free superconducting electron cooler at the storage ring TARN II

2000 ◽  
Vol 441 (3) ◽  
pp. 326-338 ◽  
Author(s):  
T Tanabe ◽  
K Noda ◽  
T Yosiyuki ◽  
M Hosino ◽  
I Watanabe ◽  
...  
Keyword(s):  
Liquid Helium ◽  
Storage Ring ◽  
Electron Cooler
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