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2014-03-10
16:36
Magnet polarities in the LHC / McAteer, M ; Levinsen, Y ; Maclean, E ; Persson, T ; Steinhagen, R ; Tomas, R
We report the results of extensive tests to verify the polarities of Landau damping octupoles (MOF, MOD) and octupole spool correctors (MCO), arc trim skew sextupoles (MSS), and triplet sextupole correctors (MCSX and MCSSX). [...]
CERN-ACC-NOTE-2014-0012. - 2014. - 8 p.
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2014-03-05
16:47
Beam induced heating reduction by bunch flattening / Argyropoulos, T ; Bhat, C ; Esteban Müller, JF ; Jakobsen, S ; Mastoridis, T ; Metral, E ; Mounet, N ; Papotti, G ; Pieloni, T ; Salvant, B et al.
The main purpose of this MD was to modify the beam induced heating on some critical LHC components by flattening the bunch distribution by applying an RF phase modulation. [...]
CERN-ACC-NOTE-2014-0011. - 2014. - 14 p.
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2014-03-05
16:30
Calibration of the High Resolution Phase Shifter (HRPS) in Linac 3/Rex using a dedicated LabView program / Winsvold, D
This is a document describing how to calibrate the High Resolution Phase Shifters of Linac 3 and REX. [...]
CERN-ACC-NOTE-2014-0010. - 2013. - 35 p.
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2014-02-14
09:01
Investigation of Quality Factor of Resonators / Eberhardt, J
This document provides different methods of determining the quality factor Q of a resonator. [...]
CERN-ACC-NOTE-2014-0009. - 2014.
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2014-02-12
14:00
Effect of H- stripped electrons on the LINAC4 profile measurements / Chevallay, E (-) ; Cheymol, B (ESS, Lund, Sweden) ; Duraffourg, M (-) ; Focker, GJ (-) ; Hessler, C (-) ; Raich, U (-) ; Roncarolo, F (-) ; Vuitton, C (-) ; Zocca, F (-)
At CERN's LINAC4 it is foreseen to measure transverse beam profiles by means of Secondary Emission wire grids (normally referred to as SEM monitors or SEM grids) and Beam Wire Scanners (BWS). [...]
CERN-ACC-NOTE-2014-0008. - 2013. - 28 p.
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2014-02-06
13:33
PSB beam longitudinal blow-up by phase modulation with the digital LLRF prototype system / Angoletta, M E ; Blas, A ; Butterworth, A ; Findlay, A ; Jaussi, M ; Leinonen, P ; Molendijk, J ; Sanchez-Quesada, J
The PSB will be upgraded to a new, Digital Low-Level RF (DLLRF) system in 2014 at the injectors’ restart after LS1. [...]
CERN-ACC-NOTE-2014-0007. - 2014.
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2014-01-31
14:49
Summary of the 2-day internal review of LHC performance limitations (linked to transverse collective effects) during run I (CERN, 25-26/09/2013) / Metral, E ; Arduini, G ; Banfi, D ; Barranco, J ; Bartosik, H ; Buffat, X ; Bruning, O ; Fartoukh, S ; Herr, W ; Hofle, W et al.
In this note the 2-day internal review of LHC performance limitations (linked to transverse collective effects) during run I, which took place at CERN on 25-26/09/2013 (https://indico.cern.ch/conferenceDisplay.py?confId=267783), is summarised and the next steps to prepare the machine set-up in 2015 are discussed..
CERN-ACC-NOTE-2014-0006. - 2014. - 15 p.
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2014-01-09
16:03
The FLUKA study of the secondary particles fluence in the AD-Antiproton Decelerator target area / Calviani, M ; Nowak, E
In this paper we present Monte Carlo FLUKA simulations [1, 2] carried out to investigate the secondary particles fluence emerging from the antiproton production target and their spatial distribution in the AD target area. [...]
CERN-ACC-NOTE-2014-0002. - 2014. - 11 p.
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2014-01-08
14:54
Stripping Foil Data Analysis / Lanaia, D ; Voulot, D
This report summarises the results of a recent study carried out using the REX-ISOLDE Linac beam and stripping foils installed in the last diagnostic box (DB5) before the bending magnet. [...]
CERN-ACC-NOTE-2014-0001. - 2014. - 16 p.
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2013-12-20
15:12
SPS Wideband Transverse Feedback Kicker: Design Report / Cesaratto, J M ; Fox, J D ; Rivetta, C H ; Alesini, D ; Drago, A ; Gallo, A ; Marcellini, F ; Zobov, M ; De Santis, S ; Paret, Z et al.
The SPS wideband transverse feedback system is being developed to control vertical beam instabilities arising from intensity dependent effects like electron cloud instability (ECI) and the transverse mode coupling instability (TMCI). [...]
CERN-ACC-NOTE-2013-0047. - 2013. - 20 p.
SPS_Wideband_Transverse_Feedback-CERN-ACC-NOTE-2013-0047-20131220

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