The CLIC positron source based on compton schemes (2009)
Rinolfi, L, Antoniou, F, Braun, H, Papaphilippou, Y, Schulte, D, Vivoli, A, ...
The CLIC polarized positron source is based on a positron production scheme in which polarized photons are produced by a Compton process. In one option, Compton backscattering takes place in a...
Stacking Simulations for Compton Positron sources of Future Linear Colliders (2009)
Zimmermann, F, Papaphilippou, Y, Rinolfi, L, Vivoli, A, Yakimenko, V, Kuriki, M, ...
The Compton positron source of a future linear collider must obtain the target bunch population by accumulating a large number of positron packets, arriving either in a number of bursts from a...
Measurement of the luminosity at the DAFNE collider upgraded with the crab waist scheme (2009)
Boscolo, M., Bossi, F., Buonomo, B., Mazzitelli, G., Murtas, F., Raimondi, P., ...
The test of the crab waist collision scheme, undergoing at the e+e- Frascati DAFNE accelerator complex since February 2008, requires a fast and accurate measurement of the absolute luminosity, as...
Polarization induced instabilities in external four-mirror Fabry-Perot cavities (2009)
Zomer, F., Fedala, Y., Pavloff, N., Soskov, V., Variola, A.
Various four-mirror optical resonators are studied in the perspective of realizing passive stacking cavities. A comparative study of the mechanical stability is provided. The polarization properties...
Les cavités Fabry-Perot en mode pulsé et leurs récentes applications (2009)
Chiche, R., Jehanno, D., Soskov, V., Variola, A., Zomer, F., Picqué, N.
Les cavités Fabry-Perot en mode pulsé et leurs récentes applications (2009)
Chiche, R., Jehanno, D., Soskov, V., Variola, A., Zomer, F., Picqué, N.
Les cavités Fabry-Perot en mode pulsé et leurs récentes applications (2009)
Chiche, R., Jehanno, D., Soskov, V., Variola, A., Zomer, F., Picqué, N.
Production of Slow Protonium in Vacuum (2008)
Zurlo, N., Amoretti, M., Amsler, C., Bonomi, G., Carraro, C., Cesar, C. L., ...
We describe how protonium, the quasi-stable antiproton-proton bound system, has been synthesized following the interaction of antiprotons with the molecular ion H$_2^+$ in a nested Penning trap...
Titanium Nitride Coating of RF Ceramic Windows by Reactive DC Magnetron Sputtering (2008)
Variola, A., Kaabi, W., Jenhani, H., Lepercq, P., Keppel, G., Palmieri, V., ...
LAL-Orsay is developing an important effort on R&D and technology studies on RF power couplers for superconductive cavities. These are complex and high technology devices due to their basic...
Titanium Nitride Coating of RF Ceramic Windows by Reactive DC Magnetron Sputtering (2008)
Variola, A., Kaabi, W., Jenhani, H., Lepercq, P., Keppel, G., Palmieri, V., ...
LAL-Orsay is developing an important effort on R&D and technology studies on RF power couplers for superconductive cavities. These are complex and high technology devices due to their basic...
Titanium Nitride Coating of RF Ceramic Windows by Reactive DC Magnetron Sputtering (2008)
Variola, A., Kaabi, W., Jenhani, H., Lepercq, P., Keppel, G., Palmieri, V., ...
LAL-Orsay is developing an important effort on R&D and technology studies on RF power couplers for superconductive cavities. These are complex and high technology devices due to their basic...
Studies on input couplers for superconducting cavities (2008)
Jenhani, H., Variola, A., Grandsire, L., Garvey, T., Lacroix, M., Kaabi, W., ...
We have recently demonstrated a dramatic reduction in conditioning time for TTF-III couplers [1]. This was carried out by a systematic study of the different parameters that play a role in the...
Studies on input couplers for superconducting cavities (2008)
Jenhani, H., Variola, A., Grandsire, L., Garvey, T., Lacroix, M., Kaabi, W., ...
We have recently demonstrated a dramatic reduction in conditioning time for TTF-III couplers [1]. This was carried out by a systematic study of the different parameters that play a role in the...
Studies on input couplers for superconducting cavities (2008)
Jenhani, H., Variola, A., Grandsire, L., Garvey, T., Lacroix, M., Kaabi, W., ...
We have recently demonstrated a dramatic reduction in conditioning time for TTF-III couplers [1]. This was carried out by a systematic study of the different parameters that play a role in the...
Evidence For The Production Of Slow Antiprotonic Hydrogen In Vacuum (2007)
Zurlo, N., Amoretti, M., Amsler, C., Bonomi, G., Carraro, C., Cesar, C. L., ...
We present evidence showing how antiprotonic hydrogen, the quasistable antiproton-proton (pbar-p) bound system, has been synthesized following the interaction of antiprotons with the hydrogen...
On the non-paraxial modes of two-dimensional nearly concentric resonators (2007)
Zomer, F., Soskov, V., Variola, A.
A non-paraxial scalar diffraction integral is used to determine numerically the resonance modes of a two dimensional nearly concentric Fabry-Perot resonator. Numerical examples are provided and...
On the non-paraxial modes of two-dimensional nearly concentric resonators (2007)
Zomer, F., Soskov, V., Variola, A.
A non-paraxial scalar diffraction integral is used to determine numerically the resonance modes of a two dimensional nearly concentric Fabry-Perot resonator. Numerical examples are provided and...
On the non-paraxial modes of two-dimensional nearly concentric resonators (2007)
Zomer, F., Soskov, V., Variola, A.
A non-paraxial scalar diffraction integral is used to determine numerically the resonance modes of a two dimensional nearly concentric Fabry-Perot resonator. Numerical examples are provided and...
Positron plasma control techniques for the production of cold antihydrogen (2007)
Funakoshi, R., Amoretti, M., Bonomi, G., Bowe, P. D., Canali, C., Carraro, C., ...
An observation of a clear dependence of antihydrogen production on positron plasma shapes is reported. For this purpose a plasma control method has been developed combining the plasma rotating-wall...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2006)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
CLIC Polarized Positron Source Based on Laser Compton Scattering (2006)
Zimmermann, Frank, Araki, S, Artru, X, Braun, H, Bulyak, E, Chehab, R, ...
We describe a possible layout and parameters of a polarized positron source for CLIC, where the positrons are produced from polarized gamma rays created by Compton scattering of a 1.3-GeV electron...
Honkavaara, K., Artru, X., Chehab, R., Variola, A.
The interest in using optical transition radiation (OTR) in high energy (multiGeV) beam diagnostics has motivated theoretical and experimental investigations on the limitations brought by diffraction...
Developments in conditioning procedures for the TTF-III power couplers (2006)
Jenhani, H., Garvey, T., Lepercq, P., Omeich, M., Prevost, C., Variola, A.
Despite extensive experience in many laboratories on power conditioning of couplers for RF superconducting accelerators, it is still not a well understood procedure and can produce many unpredictable...
High Power Couplers and Pushing the Limits of Superconductive Cavities (2006)
At present different linear accelerators (linac) projects share the application of the superconductive cavities technology. The effort on SC cavities has, in fact, pushed the cavities performances...
High Power Couplers for Linear Accelerators (2006)
High power input couplers are a fundamental component of linear accelerating structures and, in particular, of superconducting structures. In fact, in this case, the power couplers function is not...
XFEL - The European X-Ray Free-Electron Laser - Technical Design Report (2006)
A. Aghababyan, M. Altarelli, C. Altucci, G. Amatuni, P. Anfinrud, ...
Book
High Power Couplers and Pushing the Limits of Superconductive Cavities (2006)
At present different linear accelerators (linac) projects share the application of the superconductive cavities technology. The effort on SC cavities has, in fact, pushed the cavities performances...
High Power Couplers for Linear Accelerators (2006)
High power input couplers are a fundamental component of linear accelerating structures and, in particular, of superconducting structures. In fact, in this case, the power couplers function is not...
Developments in conditioning procedures for the TTF-III power couplers (2006)
Jenhani, H., Garvey, T., Lepercq, P., Omeich, M., Prevost, C., Variola, A.
Despite extensive experience in many laboratories on power conditioning of couplers for RF superconducting accelerators, it is still not a well understood procedure and can produce many unpredictable...
High Power Couplers and Pushing the Limits of Superconductive Cavities (2006)
At present different linear accelerators (linac) projects share the application of the superconductive cavities technology. The effort on SC cavities has, in fact, pushed the cavities performances...
High Power Couplers for Linear Accelerators (2006)
High power input couplers are a fundamental component of linear accelerating structures and, in particular, of superconducting structures. In fact, in this case, the power couplers function is not...
Developments in conditioning procedures for the TTF-III power couplers (2006)
Jenhani, H., Garvey, T., Lepercq, P., Omeich, M., Prevost, C., Variola, A.
Despite extensive experience in many laboratories on power conditioning of couplers for RF superconducting accelerators, it is still not a well understood procedure and can produce many unpredictable...
Dixit, S, Blair, GA, Boogert, ST, Boorman, G, Bosco, A, Brachmann, A, ...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S, Higashi, Y, Honda, Y, Kurihara, Y, Kuriki, M, Okugi, T, ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
Cold-Antimatter Physics (2005)
Amoretti, ATHENA Collaboration: M., Amsler, C., Bonomi, G., Bowe, P. D., Canali, C., Carraro, C., ...
The CPT theorem and the Weak Equivalence Principle are foundational principles on which the standard description of the fundamental interactions is based. The validity of such basic principles should...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
Design of a Polarised Positron Source Based on Laser Compton Scattering (2005)
Araki, S., Higashi, Y., Honda, Y., Kurihara, Y., Kuriki, M., Okugi, T., ...
We describe a scheme for producing polarised positrons at the ILC from polarised X-rays created by Compton scattering of a few-GeV electron beam off a CO2 or YAG laser. This scheme is very energy...
ATHENA -- First Production of Cold Antihydrogen and Beyond (2004)
Kellerbauer, ATHENA Collaboration: A., Amoretti, M., Amsler, C., Bonomi, G., Bowe, P. D., Canali, C., ...
Atomic systems of antiparticles are the laboratories of choice for tests of CPT symmetry with antimatter. The ATHENA experiment was the first to report the production of copious amounts of cold...
Production of Cold Antihydrogen with ATHENA for Fundamental Studies (2004)
Kellerbauer, A G, Kellerbauer, A G, Amoretti, M, Amsler, Claude, Bonomi, G, Bowe, P, ...
Since the beginning of operations of the CERN Antiproton Decelerator in July 2000, the successful deceleration, storage and manipulation of antiprotons has led to remarkable progress in the...
Production of Cold Antihydrogen with ATHENA for Fundamental Studies (2004)
Kellerbauer, ATHENA Collaboration: A., Amoretti, M., Amsler, C., Bonomi, G., Bowe, P. D., Canali, C., ...
Since the beginning of operations of the CERN Antiproton Decelerator in July 2000, the successful deceleration, storage and manipulation of antiprotons has led to remarkable progress in the...
The ATHENA Antihydrogen Apparatus (2004)
Amoretti, M, Amsler, Claude, Bonomi, G, Bouchta, A, Bowe, P, Carraro, C, ...
The ATHENA apparatus that recently produced and detected the first cold antihydrogen atoms is described. Its main features, which are described herein, are: an external positron accumulator, making...
The First Cold Antihydrogen (2004)
Fujiwara, M C, Amoretti, M, Amsler, Claude, Bonomi, G, Bouchta, A, Bowe, P, ...
Antihydrogen, the atomic bound state of an antiproton and a positron, was produced at low energy for the first time by the ATHENA experiment, marking an important first step for precision studies of...
The First Cold Antihydrogen (2004)
Fujiwara, M. C., Amoretti, M., Amsler, C., Bonomi, G., Bouchta, A., Bowe, P. D., ...
Antihydrogen, the atomic bound state of an antiproton and a positron, was produced at low energy for the first time by the ATHENA experiment, marking an important first step for precision studies of...
Three Dimensional Annihilation Imaging of Antiprotons in a Penning Trap (2004)
Fujiwara, M. C., Amoretti, M., Bonomi, G., Bouchta, A., Bowe, P. D., Carraro, C., ...
We demonstrate three-dimensional annihilation imaging of antiprotons trapped in a Penning trap. Exploiting unusual feature of antiparticles, we investigate a previously unexplored regime in particle...
Detection of antihydrogen annihilations with a Si-micro-strip and pure CsI detector (2004)
Johnson, I, Amoretti, M, Amsler, Claude, Bazzano, G, Bonomi, G, Bouchta, A, ...
In 2002, the ATHENA collaboration reported the creation and detection of cold (~15 K) antihydrogen atoms [1]. The observation was based on the complete reconstruction of antihydrogen annihilations,...
Positron plasma diagnostics and temperature control for antihydrogen production (2003)
Amoretti, M, Amsler, Claude, Bonomi, G, Bouchta, A, Bowe, P, Carraro, C, ...
Production of antihydrogen atoms by mixing antiprotons with a cold, confined, positron plasma depends critically on parameters such as the plasma density and temperature. We discuss non-destructive...
Positron plasma diagnostics and temperature control for antihydrogen production (2003)
Amoretti, ATHENA Collaboration: M., Amsler, C., Bonomi, G., Bouchta, A., Bowe, P. D., Carraro, C., ...
Production of antihydrogen atoms by mixing antiprotons with a cold, confined, positron plasma depends critically on parameters such as the plasma density and temperature. We discuss non-destructive...
First Production and Detection of Cold Antihydrogen Atoms (2003)
Fujiwara, M C, Amoretti, M, Amsler, Claude, Bonomi, G, Bouchta, A, Bowe, P, ...
The ATHENA experiment recently produced the first atoms of cold antihydrogen. This paper gives a brief review of how this was achieved.
First Production and Detection of Cold Antihydrogen Atoms (2003)
Fujiwara, M. C., Amoretti, M., Amsler, C., Bonomi, G., Bouchta, A., Bowe, P., ...
The ATHENA experiment recently produced the first atoms of cold antihydrogen. This paper gives a brief review of how this was achieved.
Production and detection of cold antihydrogen atoms (2002)
Amoretti, M, Amsler, Claude, Bonomi, G, Bouchta, A, Bowe, P, Carraro, C, ...
A theoretical underpinning of the standard model of fundamental particles and interactions is CPT invariance, which requires that the laws of physics be invariant under the combined discrete...
Producing Slow Antihydrogen for a Test of CPT Symmetry with ATHENA (2002)
Fujiwara, M C, Amoretti, M, Amsler, Claude, Bendiscioli, G, Bonomi, G, Bouchta, A, ...
The ATHENA experiment at the Antiproton Decelerator facility at CERN aims at testing CPT symmetry with antihydrogen. An overview of the experiment, together with preliminary results of development...
First Results of the Beam Gas Ionization Profile Monitor (BGIP) Tested in the SPS Ring (2000)
Arauzo-Garcia, A, Bovet, Claude, Koopman, J, Variola, A
The BGIP is a proposal for a new, non-destructive beam profile monitor for the future Large Hadron Collider (LHC). This device provides the rms beam size value by means of the analysis of the...
First Results of the Beam Gas Ionization Profile Monitor (BGIP) Tested in the SPS Ring (2000)
Arauzo-Garcia, A, Bovet, Claude, Koopman, J, Variola, A
The BGIP is a proposal for a new, non-destructive beam profile monitor for the future Large Hadron Collider (LHC). This device provides the rms beam size value by means of the analysis of the...
The Luminescence Profile Monitor of the CERN SPS (2000)
Burtin, G, Camas, J, Ferioli, G, Jung, R, Koopman, J, Perret, R, ...
The SPS luminescence monitor is the first device of this type to be used in a high energy accelerator, from 14 to 450 GeV, where up till now the light production was considered to be insufficient. It...
The Luminescence Profile Monitor of the CERN SPS (2000)
Burtin, G, Camas, J, Ferioli, G, Jung, R, Koopman, J, Perret, R, ...
The SPS luminescence monitor is the first device of this type to be used in a high energy accelerator, from 14 to 450 GeV, where up till now the light production was considered to be insufficient. It...
Beam characteristics control using Optical Transition Radiation (OTR) (1999)
Castellano, M G, Catani, L, Chehab, R, Taurigna-Quere, M, Variola, A
Artru, X., Chehab, R., Honkavaara, K., Variola, A.
The interest in using optical transition radiation (OTR) in high energy (multiGeV) beam diagnostics has motivated theoretical and experimental investigations on the limitations brought by diffraction...
Honkavaara, K., Artru, X., Chehab, R., Variola, A.
The interest in using optical transition radiation (OTR) in high energy (multiGeV) beam diagnostics has motivated theoretical and experimental investigations on the limitations brought by diffraction...
Honkavaara, K., Artru, X., Chehab, R., Variola, A.
The interest in using optical transition radiation (OTR) in high energy (multiGeV) beam diagnostics has motivated theoretical and experimental investigations on the limitations brought by diffraction...
Experimental investigations on geometrical resolution of optical transition radiation (otr) (1998)
Artru, X., Castellano, M., Catani, L., Chehab, R., Giove, D., Honkavaara, K., ...
Experimental investigations on geometrical resolution of optical transition radiation (otr) (1998)
Artru, X., Castellano, M., Catani, L., Chehab, R., Giove, D., Honkavaara, K., ...
Optical Transition Radiation diagnostics (1997)
Ferianis, M., Rossi, C., D'Auria, G., Zangrando, D., Martinis, C., Variola, A., ...
The OTR based diagnotic system for the ELETTRA LINAC : first results and future upgrades (1997)
Ferianis, M., Rossi, C., D'Auria, G., Zangrando, D., Martinis, C., Variola, A.
Contributions to PAC'97 (1997)
Gao, J., Garvey, T., Chel, S., Buhler, S., Junquera, T., Bernard, M., ...
Optical Transition Radiation diagnostics (1997)
Ferianis, M., Rossi, C., D'Auria, G., Zangrando, D., Martinis, C., Variola, A., ...