CERN Accelerating science

CERN Document Server 118 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.86 sekúnd. 
1.
Measurements of neutron capture cross-sections at n_TOF / Tagliente, G ; Abbondanno, U G ; Aerts, G ; Alvarez-Velarde, F ; Álvarez-Pol, H ; Andriamonje, Samuel A ; Andrzejewski, J ; Badurek, G ; Baumann, P ; Bevcár, F et al.
2007 - Published in : AIP Conf. Proc.: 884 (2007) , pp. 265-271 External link: Published version from AIP
In : 6th Latin American Symposium On Nuclear Physics And Applications, Iguazu, Argentina, 3 - 7 Oct 2005, pp.265-271
2.
Measurement of the 151Sm(n,) cross section from 0.6 eV to 1 MeV via the neutron time-of-flight technique at the CERN n_TOF facility / Marrone, S (Dipartimento di Fisica and INFN Bari, Italy) ; Abbondanno, U (Instituto Nazionale di Fisica Nucleare Sezione di Trieste, Italy) ; Aerts, G (CEA/Saclay-DSM/DAPNIA/SPhN, Gif-sur-Yvette, France) ; Alvarez-Velarde, F (Centro de Investigaciones Energéticas Medioambientales y Tecnologicas, Madrid, Spain) ; Alvarez-Pol, H (Univ. de Santiago de Compostela, Spain) ; Andriamonje, Samuel A (CEA/Saclay-DSM/DAPNIA/SPhN, Gif-sur-Yvette, France) ; Andrzejewski, J (Univ. of Lodz, Poland) ; Badurek, G (Technische Univ. Wien, Austria) ; Baumann, P (Centre National de la Recherche Scientifique/IN2P3-IreS, Strasbourg, France) ; Voss, F (Institut für Kernphysik, Karlsruhe, Germany) et al.
Geneva : CERN, 2006 - Published in : Phys. Rev. C 73 (2006) 034604 APS Published version, local copy: PDF;
3.
Neutron capture cross section measurement of $^{151}Sm$ at the CERN neutron Time of Flight Facility (nTOF) / n_TOF Collaboration
The measurement of **1**5**1Sm(n, gamma)**1**5**2Sm (samarium) cross section showed improved performance of the new spallation neutron facility. It covered a wide energy range with good resolution, high neutron flux, low backgrounds and a favourable duty factor [...]
2004 - Published in : Phys. Rev. Lett. 93 (2004) 161103-1-161103-5 APS Published version, local copy: PDF;
4.
Time-energy relation of the nTOF neutron beam : standards revisited / Lorusso, G ; Abbondanno, U ; Aerts, G ; Alvarez-Pol, H ; Alvarez-Velarde, F ; Andriamonje, Samuel A ; Andrzejewski, J ; Angelopoulos, Angelos ; Assimakopoulos, P A ; Badurek, G et al.
The accurate determination of neutron cross-sections as a function of the neutron energy at a time-of-flight facility requires a precise knowledge of the time-energy relation for the neutron beam. For the n _TOF neutron beam at CERN, produced by spallation of high-energy protons on a Pb target, the time-energy relation is connected to the production mechanism and to the subsequent moderation process. [...]
2004 - Published in : Nucl. Instrum. Methods Phys. Res., A 532 (2004) 622-630
5.
The data acquisition system of the neutron time-of-flight facility nTOF at CERN / Abbondanno, U ; Aerts, G ; Alvarez, F ; Alvarez, H ; Andriamonje, Samuel A ; Andrzejewski, J ; Badurek, G ; Baumann, P ; Becvar, F ; Benlliure, J et al.
The n_TOF facility at CERN has been designed for the measurement of neutron capture, fission and (n, multiplied by n) cross-sections with high accuracy. This requires a flexible and - due to the high instantaneous neutron flux - almost dead time free data acquisition system. [...]
2005 - Published in : Nucl. Instrum. Methods Phys. Res., A 538 (2005) 692-702
6.
High-accuracy, bidimensional read-out of proportional chambers with short resolution times / Breskin, Amos (CERN) ; Charpak, Georges (CERN) ; Demierre, Claude (CERN) ; Majewski, S R (CERN) ; Policarpo, Armando (CERN) ; Sauli, Fabio (CERN) ; Santiard, Jean-Claude (CERN)
The pulses induced in a multiwire proportional chamber on orthogonal cathode strips are integrated after filtering through gates of variable widths, down to about 30 ns. The determination of the charge centroid gives two coordinates. [...]
1977 - 24 p. - Published in : Nucl. Instrum. Methods 143 (1977) 29-39 Fulltext: PDF;
7.
Advances in vacuum ultraviolet detection with multistep gaseous detectors and application to Cherenkov ring imaging / Breskin, Amos ; Cattai, A ; Charpak, Georges ; Peisert, Anna (CERN) ; Policarpo, Armando ; Sauli, Fabio
The multistep avalanche chamber permits an efficient detection of VUV photons. In a two-step proportional mode charges higher than 1 pC are obtained from single electrons. [...]
1981 - Published in : IEEE Trans. Nucl. Sci. 28 (1981) 429-34
In : 27th Nuclear Science Symposium, Orlando, FL, USA, 5 - 7 Nov 1980, pp.429-34
8.
Measurement of the nTOF beam profile with a micromegas detector / Pancin, J ; Abbondanno, U ; Aerts, G ; Alvarez, H ; Andriamonje, Samuel A (CEA-Saclay) ; Angelopoulos, Angelos ; Assimakopoulos, P A ; Bacri, C O ; Badurek, G ; Baumann, P et al.
A Micromegas detector was used in the neutron Time-Of-Flight (n_TOF) facility at CERN to evaluate the spatial distribution of the neutron beam as a function of its kinetic energy. This was achieved over a large range of neutron energies by using two complementary processes: at low energy by capture of a neutron via the **6Li(n, alpha)t reaction, and at high energy by elastic scattering of neutrons on gas nuclei (argon+isobutane or helium+isobutane). [...]
2004 - Published in : Nucl. Instrum. Methods Phys. Res., A 524 (2004) 102-114
9.
Study of the background in the measuring station at the n_TOF facility at CERN: sources and solutions / Zanini, L ; Abbondanno, U ; Aerts, G ; Andriamonje, Samuel A ; Andrzejewski, J ; Angelopoulous, A ; Assimakopoulos, Panayiotis ; Bacri, C-O ; Badurek, G ; Berthoumieux, E et al.
A background roughly two orders of magnitude higher than tolerable was found in the n_TOF facility at CERN during the first measurements [1]. This note describes a series of additional measurements performed in the n_TOF experimental area to study the origin and the characteristics of the background. [...]
SL-Note-2001-046-EET.- Geneva : CERN, 2001 - 35 p. Note Fulltext: PDF;
10.
Localization of ionizing particles with the gas proportional scintillation counter / Policarpo, Armando ; Alves, M A F ; Leite, S C P ; Salete, M
1975. - 7 p.

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