I am a CERN-COFUND Marie Curie fellow working within the BE/ABP group at
CERN. I carried out my Ph.D. research at CERN and the University of Malta,
which consisted of developing algorithms to automate and speed up the
beam-based alignment of the LHC collimators.
I obtained a B.Sc. in Information and Communication Technology (First Class
Honours), with specialization in Communications and Computer Engineering (CCE)
at the University of Malta. I was presented with the best computer engineering
thesis award by the Malta Chamber of Engineers in 2010.
My research interests span artificial intelligence and beam physics, and
include pattern recognition, automation science, collimation and beam losses. I
currently serve as the scientific secretary of the LHC collimation
working group. You are welcome to contact me via email.
D. Wollmann, A. A. Nosych, G. Valentino, O. Aberle, R. W. Assmann, A. Bertarelli, C. Boccard, R. Bruce, F. Burkart, E. Calvo, M. Cauchi, A. Dallocchio, D. Deboy, M. Gasior, R. Jones, V. Kain, L. Lari, S. Redaelli, A. Rossi
Beam feasibility study of a collimator with in-jaw beam position monitors
NIM A (2014)
published
version
R. Bruce, R. W. Assmann, V. Boccone, C. Bracco, M. Brugger, M. Cauchi, F. Cerutti, D. Deboy, A. Ferrari, L. Lari, A. Marsili, A. Mereghetti, D. Mirarchi, E. Quaranta, S. Redaelli, G. Robert-Demolaize, A. Rossi, B. Salvachua, E. Skordis, C. Tambasco, G. Valentino, T. Weiler, V. Vlachoudis, D. Wollmann
Simulations and measurements of beam loss patterns at the CERN Large Hadron Collider
Phys. Rev. ST Accel. Beams 17, 081004 (2014)
published
version
B. Salvachua, R. Bruce, F. Carra, M. Cauchi, E. B. Holzer, W. Hofle, D. Jacquet, L. Lari, D. Mirarchi, E. Nebot del Busto, S. Redaelli, A. Rossi, M. Sapinski, R. Schmidt, G. Valentino, D. Valuch, J. Wenninger, D. Wollmann, M. Zerlauth
Handling 1 MW losses with the LHC collimation system
published
version, Proceedings of IPAC'14, Dresden, Germany
T. W. Markiewicz, O. Aberle, A. Bertarelli, E. L. Bong, P. Gradassi, L. Keller, A. Marsili, S. Redaelli, A. Rossi, B. Salvachua, G. Valentino
Construction and bench testing of a prototype rotatable collimator for the LHC
published
version, Proceedings of IPAC'14, Dresden, Germany
N. Bosanac, A. Diaz, V. Dang, F. Ebersohn, S.
Gonzalez, J. Qi, N. Sweet, N. Tie, G. Valentino, A. Fraeman, A. Gibbings, T. Maddox, C. Nie, J. Rankin, T. Rebelo, G. Taylor
Manned sample return mission to Phobos: a technology demonstration for
human exploration of Mars
published
version, Proceedings of the IEEE Aerospace Conference 2014, Big Sky, Montana, USA
G. Valentino, A. Nosych, R. Bruce, M. Gasior, D.
Mirarchi, S. Redaelli, B. Salvachua, D. Wollmann
Successive approximation algorithm for beam-position-monitor-based LHC
collimator alignment
Phys. Rev. ST Accel. Beams 17, 021005 (2014)
published version
G. Valentino, R. W. Assmann, S. Redaelli, N.
Sammut
Simulator for beam-based LHC collimator alignment
Phys. Rev. ST Accel. Beams 17, 021003 (2014)
published
version
G. Valentino, R. W. Assmann, R. Bruce, S. Jackson,
S. Redaelli, B. Salvachua, N. Sammut, D. Wollmann, C. Zamantzas
Fast automatic beam-based alignment of the LHC collimation system
published
version, Proceedings of ICALEPCS'13, San Francisco, California, USA
G. Valentino, R. W. Assmann, S. Redaelli, N.
Sammut
LHC collimator alignment operational tool
published
version, Proceedings of ICALEPCS'13, San Francisco, California, USA
G. Valentino, R. W. Assmann, D. Jacquet, S.
Redaelli, E. Veyrunes
Online status and settings monitoring for the LHC collimators
published
version, Proceedings of ICALEPCS'13, San Francisco, California, USA
B. Salvachua, R. W. Assmann, R. Bruce, M. Cauchi,
D. Deboy, L. Lari, A. Marsili, D. Mirarchi, E. Quaranta, S. Redaelli, A.
Rossi, G. Valentino, D. Wollmann
Beam-based validation of LHC collimator settings
published
version, Proceedings of the 2nd LHC Machine Protection Workshop,
Annecy, France, 2013
S. Redaelli, R. Bruce, F. Burkart, D. Mirarchi, B.
Salvachua, G. Valentino, D. Wollmann
Experience with high-intensity beam scraping and tail populations at
the Large Hadron Collider
published
version, Proceedings of IPAC'13, Shanghai, China
B. Salvachua, R. W. Assmann, R. Bruce, M. Cauchi,
D. Deboy, L. Lari, A. Marsili, D. Mirarchi, E. Quaranta, S. Redaelli, A.
Rossi, G. Valentino
Cleaning performance of the LHC collimation system up to 4 TeV
published
version, Proceedings of IPAC'13, Shanghai, China
B. Salvachua, R. W. Assmann, R. Bruce, F. Burkart,
S. Redaelli, G. Valentino, D. Wollmann
Lifetime analysis at high intensity colliders applied to the LHC
published
version, Proceedings of IPAC'13, Shanghai, China
R. Bruce, R. W. Assmann, V. Boccone, C. Bracco, M.
Cauchi, F. Cerutti, D. Deboy, A. Ferrari, L. Lari, A. Marsili, A.
Mereghetti, E. Quaranta, S. Redaelli, G. Robert-Demolaize, A. Rossi, B.
Salvachua, E. Skordis, G. Valentino, T. Weiler, V. Vlachoudis, D. Wollmann
Simulations and measurements of cleaning with 100 MJ beams in the LHC
published
version, Proceedings of IPAC'13, Shanghai, China
H. Burkhardt, S. Jakobsen, S. Redaelli, B.
Salvachua, G. Valentino
Collimation down to 2 sigma in special physics runs in the LHC
published
version, Proceedings of IPAC'13, Shanghai, China
N. Mounet, R. Bruce, E. Metral, S. Redaelli, B.
Salvachua, B. Salvant, G. Valentino
Collimator impedance measurements in the LHC
published
version, Proceedings of IPAC'13, Shanghai, China
L. Drosdal, K. Cornelis, B. Goddard, V. Kain, M.
Meddahi, O. Mete, B. Salvachua, G. Valentino, E. Veyrunes
SPS scraping and LHC transverse tails
published
version, Proceedings of IPAC'13, Shanghai, China
E. Quaranta, R. Bruce, L. Lari, D. Mirarchi, S.
Redaelli, A. Rossi, B. Salvachua, G. Valentino
Cleaning inefficiency of the LHC collimation system during the energy
ramp: simulations and measurements
published
version, Proceedings of IPAC'13, Shanghai, China
V. Moens, R. Bruce, S. Redaelli, B. Salvachua, G.
Valentino
Comparison of LHC beam loss maps using the transverse damper blow up
and tune resonance crossing methods
published
version, Proceedings of IPAC'13, Shanghai, China
L. Lari, C. Bracco, R. Bruce, A. Faus-Golfe, B.
Goddard, S. Redaelli, B. Salvachua, G. Valentino
Simulations and measurements of beam losses on LHC collimators during
beam abort failures
published
version, Proceedings of IPAC'13, Shanghai, China
R. Versteegen, R. Bruce, J. M. Jowett, M. J.
McAteer, E. H. McLean, A. S. Langner, Y. I. Levinsen, T. Persson, S.
Redaelli, B. Salvachua, P. K. Skowronski, M. Solfaroli Camillocci, R.
Tomas, G. Valentino, J. Wenninger
Operating the LHC off-momentum for p-Pb collisions
published
version, Proceedings of IPAC'13, Shanghai, China
G. Valentino, R. W. Assmann, R. Bruce, M. Gasior,
D. Mirarchi, A. Nosych, S. Redaelli, N. Sammut
Development and beam tests of an automatic algorithm for alignment of
LHC collimators with embedded BPMs
published
version, Proceedings of IPAC'13, Shanghai, China
G. Stancari, G. Annala, R. W. Assmann, R. Bruce,
F. Burkart, T. R. Johnson, V. Previtali, S. Redaelli, B. Salvachua, D.
Still, G. Valentino, A. Valishev
Measurements of the effect of collisions on transverse beam halo
diffusion in the Tevatron and in the LHC.
published
version, Proceedings of the ICFA Mini-Workshop on Beam-Beam Effects in
Hadron Colliders, CERN, Geneva, Switzerland (2013).
G. Valentino, R. W. Assmann, R. Bruce, F. Burkart,
V. Previtali, S. Redaelli, B. Salvachua, G. Stancari, A. Valishev
Beam diffusion measurements using collimator scans in the LHC
Phys. Rev. ST Accel. Beams 16, 021003 (2013)
published
version
G. Valentino, R. W. Assmann, R. Bruce, S.
Redaelli, N. Sammut
Automatic threshold selection for BLM signals during LHC collimator
beam-based alignment.
published
version, Proceedings of UKSim-AMSS 6th European Modeling Symposium,
Valletta, Malta (2012).
G. Valentino, R. W. Assmann, R. Bruce, G. J.
Mueller, S. Redaelli, B. Salvachua, N. Sammut
A tool based on the BPM-interpolated orbit for speeding up LHC
collimator alignment.
MOP246,
Proceedings of ICFA-HB 2012, Beijing, China.
G. Stancari, G. Annala, R. Assmann, R. Bruce, A.
Didenko, T. R. Johnson, I. Morozov, V. Previtali, S. Redaelli, A. Rossi, G.
W. Saewert, B. Salvachua, D. Shatilov, V. Shiltsev, D. A. Still, G.
Valentino, A. Valishev, L. G. Vorobiev
Beam Halo Dynamics and Control with Hollow Electron Beams
WEO3C03,
Proceedings of ICFA-HB 2012, Beijing, China.
D. Wollmann, O. Aberle, R. Assmann, A. Bertarelli,
C. Boccard, R. Bruce, F. Burkart, M. Cauchi, A. Dallocchio, D. Deboy, M.
Gasior, O. R. Jones, V. Kain, L. Lari, A. Nosych, S. Redaelli, G. Valentino
Experimental verification for a collimator with in-jaw Beam Position
Monitors
MOP242,
Proceedings of ICFA-HB 2012, Beijing, China.
S. Redaelli, R. W. Assmann, G. Bellodi, K.
Brodzinski, R. Bruce, F. Burkart, M. Cauchi, D. Deboy, B. Dehning, E.B.
Holzer, J.M. Jowett, L. Lari E. Nebot Del Busto, M. Pojer, A. Priebe, A.
Rossi, M. Sapinski, M. Schaumann, R. Schmidt, M. Solfaroli Camillocci, G.
Valentino, R. Versteegen, J. Wenninger, D. Wollmann, M. Zerlauth
Quench tests at the Large Hadron Collider with Collimation Losses at
3.5 Z TeV
MOP245,
Proceedings of ICFA-HB 2012, Beijing, China.
G. Valentino, R. W. Assmann, R. Bruce, S.
Redaelli, B. Salvachua, N. Sammut, D. Wollmann
Automatic Computer Algorithms for Beam-Based Setup of the LHC
Collimators.
MOSBI1,
Proceedings of ICAP 2012, Warnemunde, Germany.
G. Valentino, R. W. Assmann, R. Bruce, L. Lari, G.
J. Mueller, S. Redaelli, A. Rossi, N. Sammut
Comparison of LHC Collimator Beam-Based Alignment Centers to the
BPM-Interpolated Orbit
TUPPR098,
Proceedings of IPAC 2012, New Orleans, USA.
G. Valentino, R. W. Assmann, F. Burkart, L. Lari,
S. Redaelli, A. Rossi, N. Sammut, D. Wollmann
Modeling and Simulation of LHC Beam-Based Collimator Setup
TUPPR097,
Proceedings of IPAC 2012, New Orleans, USA.
G. Valentino, R. W. Assmann, R. Bruce, S.
Redaelli, A. Rossi, N. Sammut, D. Wollmann
Semiautomatic beam-based LHC collimator alignment
Phys. Rev. ST Accel. Beams 15, 051002 (2012)
published
version
D. Deboy, R. W. Assmann, R. Bruce, F. Burkart, M.
Cauchi, C. Derrez, A. Masi, S. Redaelli, B. Salvachua, G. Valentino, D.
Wollmann
Listening to the Large Hadron Collider
Proceedings of the 132nd Convention of the Audio Engineering Society, April
2012, Budapest Hungary
R. Bruce, R. W. Assmann, F. Burkart, M. Cauchi, D.
Deboy, L. Lari, S. Redaelli, A. Rossi, B. Salvachua, G. Valentino, D.
Wollmann
Collimator settings and performance in 2011 and 2012
Proceedings
of the Chamonix 2012 LHC performance Workshop (2012)
published
version
G. Valentino, R. W. Assmann, R. Bruce, N.
Sammut
Classification of LHC Beam Loss Spikes using Support Vector
Machines
Proceedings of the 10th IEEE Symposium on Applied Machine Intelligence and
Informatics, Herl'any, Slovakia, 2012.
published
version
G. Valentino, R. W. Assmann, G. Bellodi, R. Bruce,
F. Burkart, M. Cauchi, D. Deboy, J. M. Jowett, L. Lari, S. Redaelli, A.
Rossi, B. Salvachua, D. Wollmann
Multi-turn Losses and Cleaning in 2011 and 2012
Proceedings
of the 3rd LHC Beam Workshop, Evian 2011
published
version
G. Bellodi, R. W. Assmann, R. Bruce, M. Cauchi, J.
M. Jowett, G. Valentino, D. Wollmann
First ion collimation commissioning results at the LHC
TUPZ007,
Proceedings of IPAC 2011, San Sebastian, Spain (2011).
G. Valentino, R. W. Assmann, S. Redaelli, N.
Sammut, D. Wollmann
Semi-automatic beam-based alignment algorithm for the LHC collimation
system
THPZ034,
Proceedings of IPAC 2011, San Sebastian, Spain (2011).
G. Valentino, R. W. Assmann, R. Bruce, F. Burkart,
M. Cauchi, D. Deboy, S. Redaelli, A. Rossi, N. Sammut, D. Wollmann
Comparison of LHC collimation setups with manual and semi-automatic
alignment
THPZ035,
Proceedings of IPAC 2011, San Sebastian, Spain (2011).
F. Burkart, R. W. Assmann, R. Bruce, M. Cauchi, D.
Deboy, L. Lari, S. Redaelli, A. Rossi, G. Valentino, D. Wollmann
Halo scrapings with collimators in the LHC
THPZ030,
Proceedings of IPAC 2011, San Sebastian, Spain (2011)
D. Wollmann, O. Aberle, R. W. Assmann, A.
Bertarelli, C. Boccard, R. Bruce, F. Burkart, M. Cauchi, A. Dallocchio, D.
Deboy, M. Gasior, R. Jones, S. Redaelli, A. Rossi, G. Valentino
First beam results for a collimator with in-jaw beam position
monitors
THPZ027,
Proceedings of IPAC 2011, San Sebastian, Spain (2011)
D. Wollmann, R. W. Assmann, R. Bruce, F. Burkart,
M. Cauchi, D. Deboy, S. Redaelli, A. Rossi, G. Valentino
Collimation dependent beam lifetime and loss rates in the LHC
THPZ026,
Proceedings of IPAC 2011, San Sebastian, Spain (2011)
M. Deile, G. Antchev, R.B. Appleby, R. Assmann, I.
Atanassov, V. Avati, J. Baechler, R. Bruce, M. Dupont, M. Dutour, K.
Eggert, B. Farnham,, J. Kaspar, F. Lucas Rodriguez, J. Morant, H.
Niewiadomski, X. Pons, E. Radermacher, S. Ravat, F. Ravotti, S. Redaelli,
G. Ruggiero, H. Sabba, M. Sapinski, W. Snoeys, G. Valentino, D. Wollmann
The first 1 1/2 Years of TOTEM Roman Pot Operation at LHC
MOPO011,
Proceedings of IPAC 2011, San Sebastian, Spain (2011).
G. Valentino, S. Zammit A technique for
automatically reprogramming an embedded Linux system
Proceedings of IEEE Eurocon 2011, Lisbon, Portugal (2011).
published
version
D. Wollmann, R.W. Assmann, G. Bellodi, R. Bruce,
M. Cauchi, J.M. Jowett, S. Redaelli, A. Rossi, G. Valentino
Multi-turn losses and cleaning
Proceedings of the 2nd LHC Beam Workshop, Evian, France 7-9 December
2010
published
version
Collimator
Settings Generation, Management and Verification
Invited talk given at the LHC Machine Protection Workshop, Annecy, France,
12th March 2013
Automatic
Computer Algorithms for Beam-Based Setup of the LHC Collimators
Invited talk given at ICAP 2012, Warnemunde, Germany, 20th August 2012
A fast automatic algorithm for the positioning of
the LHC collimator jaws
Talk given at a meeting of the Malta Chamber of Scientists, Valletta, 11th
April 2012
Multi-turn
losses and cleaning in 2011 and 2012
Invited talk given in the 3rd LHC Beam Workshop, Evian, 13th December
2011
G. Valentino
Fast
Automatic Beam-Based Alignment of the LHC Collimator Jaws
defended at the University of Malta, Msida, Malta in September 2013.
G. Valentino
Design and Implementation of an Intelligent Peripheral Controller
presented at the University of Malta, Msida, Malta in June 2010 (thesis
supervisor: Dr. Ing. S. Zammit).
Thesis synopsis presented
at the National Workshop in Information and Communications Technology, Malta,
2010
Awarded best computer engineering thesis for 2010 by the Malta Chamber of
Engineers