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Instrumentation amplifiers and voltage controlled current sources for LHC cryogenic instrumentation

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Agapito Serrano, Juan Andrés y Barradas, Nuno P. y Cardeira, Fernando M. y Casas-Cubillos, Juan y Fernandes, Ana C. y Franco Peláez, Francisco Javier y Gomes, Paulo y Gonçalves, ISabel C. y Hernández Cachero, Antonio y Lozano Rogado, Jesús y Martin Barreales, Miguel Ángel y Marques, José G. y Paz López, Antonio y Prata, María José y Ramalho, Antonio J. G. y Rodríguez-Ruiz, Miguel Ángel y Santos Blanco, José Pedro y Vieira, A. (2000) Instrumentation amplifiers and voltage controlled current sources for LHC cryogenic instrumentation. In Proceedings of the sixth Workshop on Electronics for LHC Experiments. CERN European Organization for Nuclear Research -Reports- Cern . CERN Publishing Service, Geneva, Switzerland, pp. 275-279. ISBN 92-9083-172-3

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URL Oficial: http://dx.doi.org/10.5170/CERN-2000-010.275




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Instrumentation amplifiers and voltage controlled current sources have been designed by using single operational amplifiers (OPA124, TLE2071 and OPA627). Their performance has been evaluated in the laboratory and under neutron radiation. On line measurements of the offset voltages, offset currents, closed loop gain, CMRR and bias currents were performed on the amplifiers. The current sources were set to a constant value and the current was monitored on-line. The radiation tolerance of commercial voltage references has also been investigated.

The radiation was performed out in ITN (Portugal) research nuclear reactor. In comparison to previous experimental campaigns the gamma radiation has been reduced by a factor 15 for a given neutron dose. This is achieved thanks to a recently constructed facility for neutron beam extraction


Tipo de documento:Sección de libro
Información Adicional:

© 2000 CERN (License: CC-BY-3.0).
ISSN: 0007-8328.

Workshop on Electronics for LHC Experiments(6. 2000. Krakow, Polonia)

This work has been financed by the co-operation agreement K476/LHC between CERN & UCM, by the Spanish research agency CICYT (TIC98-0737), by the Private Foundation “Miguel Casado San José”, and by the Portuguese research agency ICCTI (CERN/15181/99).

Palabras clave:Radiation effects; Instrumentation amplifiers; Electronics; Operational amplifiers; CERN
Materias:Ciencias > Física > Electrónica
Ciencias > Física > Radiactividad
Código ID:28992
Depositado:16 Mar 2015 17:58
Última Modificación:16 Mar 2015 19:22

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