Determination of Thermal Diffusivity of Fibrous Insulating Materials. (9999)
Bartolini, R., Scarpa, F., Milano, Guido
The problem of determining thermal diffusivity from transient temperature measurements is analysed, and some simulated and experimental results concerning fibrous insulators are reported and...
A Recirculating Linac as a Candidate for the UK New Light Source Project (2009)
Angal-Kalinin, D, Muratori, B, Jones, JK, Bartolini, R, Martin, I, ...
A design for a free electron laser driver which utilises 1.3 GHz superconducting CW accelerating structures is studied. The machine will deliver longitudinally compressed electron bunches with...
A Proposed New Light Source Facility for the UK (2009)
Walker, R, Bartolini, R, Christou, C, Han, JH, Kay, James, ...
The New Light Source (NLS) project was launched in April 2008 by the UK Science and Technology Facilities Council (STFC) to consider the scientific case and develop a conceptual design for a possible...
A Recirculating Linac as a Candidate for the UK New Light Source (2009)
Angal-Kalinin, D, Smith, SL, Bartolini, R, Martin, IP
We describe a design for a two-pass recirculating 1.3 GHz superconducting linac as a driver for the suite of free-electron lasers proposed in the UK New Light Source project. The machine will deliver...
TURN-BY-TURN DATA ACQUISITION AND POST-PROCESSING FOR THE DIAMOND BOOSTER AND STORAGE RING (2008)
R. Bartolini, M. Abbott, G. Rehm, J. Rowl, Diamond Light Source
The Diamond booster and storage ring are equipped with Libera Electron Beam Position Processors with turnby-turn capabilities. We describe here the turn-by-turn data acquisition system and the...
W. Scandale, R. Bartolini, P. Ferracin, P. Fessia, E. Todesco
The stability of the geometry of the superconducting coils is essential to the field homogeneity of the LHC dipole magnets. Mechanical stresses during coil assembly, thermal stresses during cool-down...
Analysis of Collective Effects at the Diamond Storage Ring (2008)
Bartolini, R, Christou, C, Fielder, R, Jensen, M, Morgan, A, Pande, SA, ...
Preparation for Top-up Operation at Diamond (2008)
Walker, R, Bartolini, R, Bonner, P, Burge, F, Chernousko, Y, Christou, C, ...
First Year's Experience of Diamond Insertion Devices (2008)
Longhi, EC, Bartolini, R, Fielder, R, Martin, I, Schouten, JC, Singh, B
Long Term Estimates For Sorting Strategies Of The Lhc Dipoles (2007)
Scandale Bartolini, W. Sc, R. Bartolini, M. Giovannozzi, E. Todesco
Sorting strategies are investigated in view of improving the dynamic aperture of the CERN-LHC. Local and quasi-local compensation of the random field shape imperfections are discussed and applied to...
Scandale Bartolini, W. Sc, R. Bartolini, P. Ferracin, P. Fessia, E. Todesco
The stability of the geometry of the superconducting coils is essential to the field homogeneity of the LHC dipole magnets. Mechanical stresses during coil assembly, thermal stresses during cool-down...
Sorting Strategies for Non-local Compensation of Non-linear Errors in Large Hadron (2007)
Colliders Bartolini Giovannozzi, R. Bartolini, M. Giovannozzi, W. Scandale
this paper we propose to carry out such investigations at the CERN Super-Proton-Synchrotron (SPS) using the configuration of the diffusion experiment [13]. The eight extraction sextupoles, used to...
Proposal Of A Sorting Experiment At The Cern Sps (2007)
R. Bartolini, Bartolini Giovannozzi, W. Sc, Ale Cern
We propose to study the effectiveness of the sorting strategies on the CERN SPS using eight strong extraction sextupoles independently powered to simulate random errors. In order to find the best...
Long Term Estimates For Sorting Strategies Of The Lhc Dipoles (2007)
Scandale Bartolini, W. Sc, R. Bartolini, M. Giovannozzi, E. Todesco
Sorting strategies are investigated in view of improving the dynamic aperture of the CERN-LHC. Local and quasi-local compensation of the random field shape imperfections are discussed and applied to...
Measurements Of The Tune Variations Induced By Non-Linearities In Lepton Machines (2007)
R. Bartolini, Bartolini Giovannozzi, W. Sc, A. Verdier Cern, C. Pellegrini, P. Tran Ucla, ...
The precise measurement of the betatron tune as a function of the oscillation amplitude provides a useful informationon non-linear beam dynamics. In lepton accelerators, this measurement is made...
Sorting Strategies For The Lhc Dipoles (2007)
R. Bartolini, W. Scandale, M. Giovannozzi, E. Todesco
this paper are either the tuneshift or the strength of a certain resonance. The first step of the sorting procedure is the analysis of the correlation of various QF with the DA. A QF is retained if...
Early Indicators Of Long Term Stability In Hadron Colliders (2007)
E. Todesco, R. Bartolini, A. Faus-Golfe, M. Giovannozzi, W. Scandale
Early indicators of long-term stability, based on short-term tracking data, are considered in hadron colliders, such as the CERN-LHC. Two early indicators are analysed: the Lyapunov coefficient and...
Precise Measurement Of The Betatron Tune (2007)
R. Bartolini, Bartolini Giovannozzi, W. Scandale, A. Bazzani, E. Todesco
this paper we review these methods, and the analytical estimates of the frequency error as a function of the sample size. Furthermore, we evaluate numerically the influence of noise in the...
Accelerator Physics Code Web Repository (2006)
Zimmermann, Frank, Basset, R, Bellodi, G, Benedetto, E, Dorda, U, Giovannozzi, Massimo, ...
In the framework of the CARE HHH European Network, we have developed a web-based dynamic acceleratorphysics code repository. We describe the design, structure and contents of this repository,...
Beam Optic Measurements for the Booster Synchrotron of the Diamond Light Source (2006)
Singh, B, Bartolini, R, Christou, C, Jones, James, Kempson, V, Martin, I
Ninno, G. De, Trovo, M., Danailov, M., Marsi, M., Karantzoulis, E., Diviacco, B., ...
The European Free Electron Laser (FEL) at ELETTRA has recently increased its maximum operating energy up to 1.5GeV, the highest electron-beam energy used so far for an FEL. This is an important...
Suppression of the Sawtooth Instability in a Storage Ring by Free-Electron Laser (2001)
Bartolini, R., Dattoli, G., Mezi, L., Migliorati, M., Renieri, A.
Magnetic errors of the LHC dipoles and possible cures (2000)
Bartolini, R, Fessia, P, Perini, D, Scandale, Walter, Todesco, Ezio
Measurement of Resonance Driving Terms from Turn-by-Turn Data (1999)
Bartolini, R, Leunissen, L H A, Papaphilippou, Y, Schmidt, F, Verdier, A
It has been shown that the Fourier analysis of recorded turn-by-turn tracking data can be used to derive resonance terms of an accelerator. Besides the resonance driving terms, the non-linear...
Measurement of Resonance Driving Terms from Turn-by-Turn Data (1999)
Bartolini, R, Leunissen, L H A, Papaphilippou, Y, Schmidt, F, Verdier, A
It has been shown that the Fourier analysis of recorded turn-by-turn tracking data can be used to derive resonance terms of an accelerator. Besides the resonance driving terms, the non-linear...
Scandale, Walter, Bartolini, R, Ferracin, P, Fessia, P, Todesco, Ezio
The stability of the geometry of the superconducting coils is essential to the field homogeneity of the LHC dipole magnets. Mechanical stresses during coil assembly, thermal stresses during cool-down...
Long term estimates for sorting strategies of the LHC dipoles (1998)
Scandale, Walter, Bartolini, R, Giovannozzi, Massimo, Todesco, Ezio
Sorting strategies are investigated in view of improving the dynamic aperture of the CERN-LHC. Local and quasi-local compensation of the random field shape imperfections are discussed and applied to...
Scandale, Walter, Bartolini, R, Ferracin, P, Fessia, P, Todesco, Ezio
The stability of the geometry of the superconducting coils is essential to the field homogeneity of the LHC dipole magnets. Mechanical stresses during coil assembly, thermal stresses during cool-down...
Long term estimates for sorting strategies of the LHC dipoles (1998)
Scandale, Walter, Bartolini, R, Giovannozzi, Massimo, Todesco, Ezio
Sorting strategies are investigated in view of improving the dynamic aperture of the CERN-LHC. Local and quasi-local compensation of the random field shape imperfections are discussed and applied to...
Normal form via tracking or beam data (1997)
Normal Form is a powerful tool to analyse the nonlinear content of a complicated system like an accelerator with its many thousands of high order multipolar errors. This technique needs as input a...
Normal form via tracking or beam data (1997)
Normal Form is a powerful tool to analyse the nonlinear content of a complicated system like an accelerator with its many thousands of high order multipolar errors. This technique needs as input a...
Sorting Strategies for the LHC Dipoles (1997)
Bartolini, R, Scandale, Walter
Sorting strategies are investigated in view of improving the dynamic aperture of the CERN-LHC. Dynamical quantities, computed with perturbative tools of non-linear maps (normal forms), are used as...
Sorting Strategies for the LHC Dipoles (1997)
Bartolini, R, Scandale, Walter
Sorting strategies are investigated in view of improving the dynamic aperture of the CERN-LHC. Dynamical quantities, computed with perturbative tools of non-linear maps (normal forms), are used as...
PLATO: A Program Library for the Analysis of 4D Nonlinear Transverse Motion (1997)
Giovannozzi, Massimo, Todesco, Ezio, Bazzani, A, Bartolini, R
The PLATO (Perturbative Lattice Analysis and Tracking tOols) program, a program library for analyzing four-dimensional betatronic motion in circular particle accelerators is presented. The routines...
Evaluation of non-linear phase space distortions via frequency analysis (1997)
Several methods have been developed recently to measure the frequencies of a time series to much higher precision than ordinary FFT. The decomposition of tracking or experimental data into a Fourier...
Evaluation of non-linear phase space distortions via frequency analysis (1997)
Several methods have been developed recently to measure the frequencies of a time series to much higher precision than ordinary FFT. The decomposition of tracking or experimental data into a Fourier...
Summary report of the group on single-particle nonlinear dynamics (1997)
Axinescu, S, Bartolini, R, Bazzani, A, Biagini, M E, Chao, A, Dragt, A, ...
PLATO: a program library for the analysis of nonlinear betatronic motion (1996)
Giovannozzi, Massimo, Todesco, Ezio, Bazzani, A, Bartolini, R
Proposal of a Sorting Experiment at the CERN SPS (1996)
Bartolini, R, Giovannozzi, Massimo, Todesco, Ezio, Scandale, Walter
We propose to study the effectiveness of the sorting strategies on the CERN SPS using eight strong extraction sextupoles independently powered to simulate random errors. In order to find the best...
Early indicators of long term stability in hadron colliders (1996)
Bartolini, R, Faus-Golfe, A, Giovannozzi, Massimo, Todesco, Ezio, Scandale, Walter
Early indicators of long-term stability, based on short-term tracking data, are considered in hadron colliders, such as the CERN-LHC. Two early indicators are analysed: the Lyapunov coefficient and...
Test of the Sorting Methods at the CERN-SPS (1996)
Bartolini, R, Giovannozzi, Massimo, Scandale, Walter, Todesco, Ezio
An external study of the effectiveness of the sorting strategies on the CERN Super-Proton-Synchrotron is proposed. The eight strong extraction sextupoles used for diffusion experiments can be...
Algorithms for a Precise Determination of the Betatron Tune (1996)
Bartolini, R, Bazzani, A, Giovannozzi, Massimo, Todesco, Ezio, Scandale, Walter
In circular accelerators the precise knowledge of the betatron tune is of paramount importance both for routine operation and for theoretical investigations. The tune is measured by sampling the...
Measurements of the Tune Variations Induced by Non-Linearities in Lepton Machines (1996)
Bartolini, R, Corbett, J, Cornacchia, M, Giovannozzi, Massimo, Pellegrini, C, Scandale, Walter, ...
The precise measurement of the betatron tune as a function of the oscillation amplitude provides a useful information on non-linear beam dynamics. In lepton accelerators, this measurement is made...
Tune evaluation in simulations and experiments (1995)
Bartolini, R, Bazzani, A, Giovannozzi, Massimo, Scandale, Walter, Todesco, Ezio
Progress of the Diamond Storage Ring and injector design
Smith, SL, Holder, D J, Jones, J, Varley, J, Wyles, N, Bartolini, R, ...
Aiello-Malmberg, P, Bartolini, A, Bartolini, R, Galli, A
1. The release of 5-hydroxytryptamine (5-HT) from the cerebral cortex and caudate nucleus of brainstem-transected cats and from the cerebral cortex of rats anaesthetized with urethane was determined...
Proceedings: Anticonvulsive action of homotaurine and taurine.
Adembri, G, Bartolini, A, Bartolini, R, Giotti, A, Zilletti, L
Non-Linear Beam Dynamics Studies of the Diamond Storage Ring
Belgroune, M, Baldwin, AI, Bartolini, R, Jones, JK, Martin, IP, Rowland, J, ...
The non-linear beam dynamics have been investigated for the non-zero dispersion lattice of the Diamond storage ring. Effects in realistic lattice configuration, where coupling errors and engineering...