CERN Accelerating science

CERN Document Server 2,029 ჩანაწერია ნაპოვნი  1 - 10შემდეგიდასასრული  ჩანაწერთან გადასვლა: ძიებას დასჭირდა 0.35 წამი. 
1.
Characteristics of Electron Beam Produced by Magnetron Diode with a Secondary-Emission Cathode / Reshetnyak, Nikolay ; Aizatsky, Nikolay ; Dovbnya, Anatoly N ; Dovbnya, Natalya ; Mytrochenko, Viktor ; Zakutin, Valeriy
The beam parameters were investigated using an azimuth-sectionalized 8-channel Faraday cup and a 12-channel computer-aided measuring system. The magnetron diode had a cathode (40 mm in diameter) and a 15 mm anode-cathode gap. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.3197
2.
Modes of Electron Beam Generation in a Magnetron Diode with a Secondary-Emission Cathode / Zakutin, Valeriy ; Dovbnya, Anatoly N ; Reshetnyak, Nikolay
Experiments have shown that the electron current direction can be varied along the diode axis or perpendicular to the axis, depending on the longitudinal magnetic field amplitude and distribution. The diode had a copper cathode diameter 40 mm and 15 mm anode-cathode gap. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2027
3.
Design of a compact Faraday cup for low energy, low intensity ion beams / Cantero, E D (CERN) ; Sosa, A (CERN ; Liverpool U.) ; Andreazza, W (CERN) ; Bravin, E (CERN) ; Lanaia, D (CERN) ; Voulot, D (CERN) ; Welsch, C P (Liverpool U. ; Cockcroft Inst. Accel. Sci. Tech.)
Beam intensity is one of the key parameters in particle accelerators, in particular during machine commissioning, but also during operation for experiments. At low beam energies and low intensities a number of challenges arise in its measurement as commonly used non-invasive devices are no longer sensitive enough. [...]
2016 - 8 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 807 (2016) 86-93
4.
Design of a Precision Positioning System for the Undulators of the Linac Coherent Light Source / Trakhtenberg, Emil ; Collins, Jeffrey T ; Den Hartog, Patric ; White, Marion
A precision positioning system has been designed for the Linac Coherent Light Source (LCLS) and a prototype system is being fabricated. The LCLS will use a beam based alignment technique to precisely align all of the segments of the 130-m long undulator line. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.4099
5.
Transverse beam profile measurements with slit scanner and Faraday cup at REX-ISOLDE / Cantero, E D ; Bravin, E ; Lanaia, D ; Sosa, A ; Voulot, D
The transverse profiles for the HIE-ISOLDE beams will be measured using a system composed of a scanning slit and a Faraday cup. [...]
CERN-ACC-Note-2014-0100.
- 2014. - 9 p.
Full text
6.
A Preliminary Interaction Region Design for a Super B-Factory / Sullivan, Michael K ; Biagini, Maria ; Donald, Martin ; Ecklund, Stanley ; Novokhatski, Alexander ; Seeman, John ; Wienands, Ulrich
The success of the two B-Factories (PEP-II and KEKB) has encouraged us to look at design parameters for a B-Factory with a 30-50 times increase in the luminosity of the present machines (L~1e36). In order to achieve this high luminosity, the beta y* values are reduced to 3-2 mm, the bunch spacing is minimized (0.6-0.3 m) and the bunch currents are increased [...]
SLAC-PUB-11248.- Stanford, CA : SLAC, 2005 - 3 p. External links: Fulltext from SLAC; Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.2077
7.
Development of Electron Gun of Carbon Nanotube Cathode / Hozumi, Yasufumi ; Ikeda, Mitsuo ; Ohsawa, Satoshi ; Sugimura, Takashi
We are developing high brightness electron guns utilizing carbon nanotube (CNT) cathodes. Recently, we succeeded to achieved field emission currents to 0.2 A (3 A/cm2) from a triode type CNT cathode of 3 mm diameter. [...]
2005 External link: Published version from JACoW
In : 21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1392
8.
Invistigations on the azimuthal homogeneity of an electron beam in a magnetron gun with a secondary-emission cathode / Aizatsky, N I ; Boriskin, V N ; Dovbnya, A N ; Dovbnya, N A ; Reshetnyak, N G ; Zakutin, V V
Investigations were made of the azimythal homogeneity, parameters of an electron beam and its sizes in a magnetron gun with a cold metallic secondary-emission cathode depending on the value and distribution of magnetic field. It is shown that such a source generates an electron beam with an azimuthal homogeneity ±4%..
2004 External link: Published version from JACoW
In : 19th Russian Accelerator Conference, Dubna, Russian Federation, 4 - 9 Oct 2004, pp.426
9.
A High Power Faraday Cup to Measure Extracted Beam Current from the Bates South Hall Ring / Shaw, J ; Averill, R ; Kowalski, S ; Sarkar, S ; Sibley, C ; Sobczynski, S ; Turchinetz, W E
1998 External link: Published version from JACoW
In : 17th Particle Accelerator Conference, pp.2274
10.
DC and pulsed electron beam test facility at CERN / Rossi, Adriana (CERN) ; Kolehmainen, Antti (CERN) ; Churchman, Ashley (CERN) ; Perini, Diego (CERN) ; Guillot-Vignot, Franck (CERN) ; Wenander, Fredrik (CERN) ; Zhang, Hao (Liverpool U.) ; Cenede, Jean (CERN) ; Wendt, Manfred (CERN) ; Toscan du Plantier, Maxime (CERN) et al.
An electron beam test stand was designed and constructed at CERN, under the umbrella of the Hi-Lumi project, to tests components for the Hollow Electron Lens (HEL), and in collaboration with the ARIES project for testing the Space Charge Compensation gun. The test facility features normal conductive magnets providing solenoid fields of the order of fractions of Tesla, beam diagnostics including screens (YAG, Cromox and OTR) for the full electron beam characterisation, a Faraday Cup collector to measure the total electron current, and a high voltage power supply up to 40 kV (with the possibility of biasing both gun and collector). [...]
2023 - Published in : JACoW IPAC 2023 (2023) TUPL104 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPL104

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