32 research outputs found
Technical design and performance of the NEMO3 detector
The development of the NEMO3 detector, which is now running in the Frejus
Underground Laboratory (L.S.M. Laboratoire Souterrain de Modane), was begun
more than ten years ago. The NEMO3 detector uses a tracking-calorimeter
technique in order to investigate double beta decay processes for several
isotopes. The technical description of the detector is followed by the
presentation of its performance.Comment: Preprint submitted to Nucl. Instrum. Methods A Corresponding author:
Corinne Augier ([email protected]
PMm2: large photomultipliers and innovative electronics for the next-generation neutrino experiments
The next generation of proton decay and neutrino experiments, the
post-SuperKamiokande detectors as those that will take place in megaton size
water tanks, will require very large surfaces of photodetection and a large
volume of data. Even with large hemispherical photomultiplier tubes, the
expected number of channels should reach hundreds of thousands. A funded R&D
program to implement a solution is presented here. The very large surface of
photodetection is segmented in macro pixels made of 16 hemispherical (12
inches) photomultiplier tubes connected to an autonomous front-end which works
on a triggerless data acquisition mode. The expected data transmission rate is
5 Mb/s per cable, which can be achieved with existing techniques. This
architecture allows to reduce considerably the cost and facilitate the
industrialization. This document presents the simulations and measurements
which define the requirements for the photomultipliers and the electronics. A
proto-type of front-end electronics was successfully tested with 16
photomultiplier tubes supplied by a single high voltage, validating the
built-in gain adjustment and the calibration principle. The first tests and
calculations on the photomultiplier glass led to the study of a new package
optimized for a 10 bar pressure in order to sustain the high underwater
pressure.Comment: 1 pdf file, 4 pages, 4 figures, NDIP08, submitted to Nucl. Instr. and
Meth. Phys. Res.
Design and implementation of the Front End Board for the readout of the ATLAS liquid argon calorimeters
The ATLAS detector has been designed for operation at CERN's Large Hadron Collider. ATLAS includes a complex system of liquid argon calorimeters. The electronics for amplifying, shaping, sampling, pipelining, and digitizing the calorimeter signals is implemented on the Front End Boards (FEBs). This paper describes the design, implementation and production of the FEBs and presents measurement results from testing performed at several stages during the production process
ATLAS liquid argon calorimeter front end electronics
The ATLAS detector has been designed for operation at CERN's Large Hadron Collider. ATLAS includes a complex system of liquid argon calorimeters. This paper describes the architecture and implementation of the system of custom front end electronics developed for the readout of the ATLAS liquid argon calorimeters
Submissions of stakeholders on voluntary codes of conduct, guidelines and best practices, and/or standards in relation to access and benefit-sharing for all subsectors of genetic resources for food and agriculture
The Commission, at its Fourteenth Regular Session, requested its Secretary to invite stakeholder groups to report on voluntary codes of conduct, guidelines and best practices, and/or standards in relation to access and benefit-sharing for all subsectors of genetic resources for food and agriculture, and to compile them for consideration by the intergovernmental technical working groups and for review by the Commission at its Fifteenth Regular Session, while acknowledging that voluntary measures should not undermine legally binding provisions developed as part of domestic legislative, administrative or policy measures.1 By notification of 5 February 2014, the Secretary invited stakeholder groups to report on voluntary codes of conduct, guidelines and best practices, and/ or standards in relation to access and benefitsharing for all subsectors of genetic resources for food and agriculture. Stakeholders were also requested to point out model contractual clauses used in specific subsectors of genetic resources for food and agriculture. This document contains the submissions in the language in which they were received. It should be noted that similar information has been gathered by the Secretariat of the Convention on Biological Diversity (SCBD) and made available to the third session of the Open-ended Ad Hoc Intergovernmental Committee for the Nagoya Protocol on Access to Genetic Resources and the Fair and Equitable Sharing of Benefits Arising from their Utilization (24-28 February 2014)
Possible consequences of the Nagoya Protocol for animal breeding and the worldwide exchange of animal genetic resources
The paper discusses animal genetic resources in the context of the Nagoya Protocol, providing an overview of the distinctive features and practices in this sector of genetic resources. It presents how animal genetic resources are utilized, who are the users and providers, and what are the trends in gene flow of these resources. The paper reflects on current access measures and arrangements for local breeds and for international commercial breeds. Key benefits arising from the international exchange of animal genetic resources for research and livestock production and current developments in the sector supporting the implementation of the Nagoya Protocol are presented. References to the scope and application of EU ABS legislation are also made. The paper underlines the importance of continuous undisturbed access to animal genetic resources for research and breeding to facilitate further development within the global livestock sector