CERN Accelerating science

CERN Document Server Sök i 32 journaler efter:  1 - 10nästaslut  gå till journal: Sökningen tog 0.57 sekunder. 
1.
Detection of antihydrogen annihilations with a cryogenic pure-CsI crystal detector / Regenfus, C ; Amsler, C ; Glauser, A ; Grögler, D ; Lindelöf, D ; Pruys, H S /ATHENA Collaboration
In the framework of the ATHENA experiment a combined tracking and photon detector, operating close to liquid nitrogen temperatures, was developed to determine simultaneously the vertex of an antiproton annihilation and energy and direction of photons stemming from a positron annihilation. The photon detector consists of 192 pure-CsI scintillation crystals (≈4 cm 3 ) coupled to 5×5 mm 2 avalanche photo-diodes, which are read by electronic chips realised in VLSI CMOS technology. [...]
2003 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 504 (2003) 343-346
2.
A measurement of the Lorentz angle in silicon strip sensors at cryogenic temperature / Johnson, I (Zurich U.) ; Amsler, C (Zurich U.) ; Chiochia, V (Zurich U.) ; Dorokhov, A (Zurich U.) ; Pruys, H S (Zurich U.) ; Regenfus, C ; Rochet, J /ATHENA Collaboration
A geometric model of charge collection has been developed to measure the Lorentz angle in silicon sensors. The model relates the track inclination to the average cluster width. [...]
2005 - Published in : Nucl. Instrum. Methods Phys. Res., A 540 (2005) 113-120 Fulltext: PDF;
3.
Non-Destructive Positron Plasma Diagnostics for Antihydrogen Production / ATHENA Collaboration
2003 - Published in : AIP Conf. Proc. 692 (2003) 121-130
In : Workshop on Non-Neutral Plasmas, Santa Fe, NM, USA, 7 - 11 Jul 2003, pp.121-130
4.
Transfer, stacking and compression of positron plasmas under UHV conditions / Van der Werf, D P (Swansea U.) ; Amoretti, M (INFN, Genoa) ; Bonomi, G (CERN) ; Bouchta, A (CERN) ; Bowe, P (Swansea U.) ; Carraro, C (INFN, Genoa ; Genoa U.) ; Cesar, C L (Rio de Janeiro Federal U. ; Ceara, Escola Tecnica) ; Charlton, M (Swansea U.) ; Doser, Michael (CERN) ; Filippini, V (INFN, Pavia) et al.
2003 - Published in : AIP Conf. Proc. 692 (2003) 172-177
In : Workshop on Non-Neutral Plasmas, Santa Fe, NM, USA, 7 - 11 Jul 2003, pp.172-177
5.
Antihydrogen Formation using Cold Plasmas / Madsen, N (Aarhus U.) ; Amoretti, M (INFN, Genoa) ; Amsler, C (Zurich U.) ; Bonomi, G (CERN) ; Bouchta, A (CERN) ; Bowe, P D (Aarhus U.) ; Carraro, C (INFN, Genoa) ; Cesar, C L (Rio de Janeiro Federal U.) ; Charlton, M (Swansea U.) ; Doser, Michael (CERN) et al.
2004 - Published in : AIP Conf. Proc. 730 (2004) 13-22
In : 14th APS Topical Conference on Atomic Processes in Plasmas, Santa Fe, NM, USA, 19-22 Apr 2004, pp.13-22
6.
Cold Antihydrogen at ATHENA : Experimental Observation and Beyond / ATHENA Collaboration
2005 - Published in : AIP Conf. Proc. 770 (2005) 33-40
In : 19th International Conference on Atomic Physics, Rio de Janeiro, Brazil, 25 - 30 Jul 2004, pp.33-40
7.
Temperature dependence of anti-hydrogen production in the ATHENA experiment / Bonomi, G ; Amoretti, M ; Amsler, Claude ; Bouchta, A ; Bowe, P ; Carraro, C ; Cesar, C L ; Charlton, M ; Doser, Michael ; Filippini, V et al.
The ATHENA experiment recently produced the first sample of cold anti-hydrogen atoms by mixing cold plasmas of anti-protons and positrons. The temperature of the positron plasma was increased by controlled RF heating and the anti-hydrogen production rate was measured. [...]
2004 - Published in : Nucl. Instrum. Methods Phys. Res., B 214 (2004) 17-21
In : 8th International Conference on Low-Energy Antiproton Physics, Yokohama, Japan, 3 - 7 Mar 2003, pp.17-21
8.
Production and detection of cold anti-hydrogen atoms : A first step towards high precision CPT test / Variola, A ; Amoretti, M ; Bonomi, G ; Boutcha, A ; Bowe, P ; Carraro, C ; Cesar, C L ; Charlton, M ; Doser, Michael ; Filippini, V et al.
Observations of anti-hydrogen in small quantities have been reported at CERN and at FermiLab, but these experiments were not suited to spectroscopy experiments. In 2002 the ATHENA collaboration reported the production and detection of very low energy anti-hydrogen atoms produced in cryogenic environment. [...]
2003 - Published in : AIP Conf. Proc. 698 (2003) 205-208
In : 8th Conference on the Intersections of Particle and Nuclear Physics, New York, NY, USA, 19 - 24 May 2003, pp.205-208
9.
Production and detection of cold antihydrogen atoms / ATHENA Collaboration
The production and observation of cold antihydrogen atoms have been recently reported by the ATHENA experiment at the CERN Antiproton Decelerator. The antiatoms were produced by mixing low-energy antiprotons and positrons in an electromagnetic trap. [...]
2004 - Published in : Nucl. Instrum. Methods Phys. Res., A 518 (2004) 244-248
10.
Real-time detector for plasma diagnostic in antimatter experiment / Carraro, C ; Amoretti, M ; Amsler, Claude ; Bonomi, G ; Bouchta, A ; Bowe, P ; Cesar, C L ; Charlton, M ; Doser, Michael ; Filippini, V et al.
In the ATHENA experiment, which has recently produced and detected cold antihydrogen, the antiatoms formation is performed by mixing two cold (meV) charged clouds of positrons and antiprotons. The antihydrogen production is strictly dependent on positron plasma parameters. [...]
2004 - Published in : Nucl. Instrum. Methods Phys. Res., A 518 (2004) 249-251

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