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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 684 (2012) 63-72
A multi-tiered data structure and process management system based on ROOT and CouchDB
G.A. Cox, E. Armengaud1, C. Augier2, Alain Benoit3, L. Bergé4, T. Bergmann, J. Blümer, G. Bres3, A. Broniatowski4, V. Brudanin, B. Censier2, M. Chapellier4, G. Chardin4, F. Charlieux2, S. Collin4, P. Coulter, O. Crauste4, M. De Jésus2, J. Domange1, 4, L. Dumoulin4, K. Eitel, D. Filosofov, N. Fourches1, J. Gascon2, G. Gerbier1, J. Gironnet2, M. Gros1, S. Henry, S. Hervé1, S. Jokisch, A. Juillard2, M. Kleifges, H. Kluck, V. Kozlov, H. Kraus, V.A. Kudryavtsev, P. Loaiza5, S. Marnieros4, A. Menshikov, X.-F. Navick1, C. Nones1, E. Olivieri4, P. Pari, L. Pattavina2, B. Paul1, M. Robinson, H. Rodenas3, S. Rozov, V. Sanglard2, B. Schmidt, S. Semikh, D. Tcherniakhovski, A.S. Torrento-Coello1, M. Unrau, L. Vagneron2, M.A. Verdier2, R.J. Walker, M. Weber, E. Yakushev, X. Zhang6

A multi-tiered data structure, analysis toolkit and data processing management system has been constructed using ROOT and CouchDB. This system is well suited for experiments that acquire many computer files of raw data over the course of months or years, that are distributed to different computing centers and further reduced in size by several steps of data processing. Data handling for experiments searching for rare events extracted from digitized pulse traces typically fit this description. An implementation of this system has been constructed for the EDELWEISS-III experiment and is described here in some detail. This solution may also serve as a prototype system for the proposed EURECA experiment.
1 :  IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (ex DAPNIA)
2 :  IPNL - Institut de Physique Nucléaire de Lyon
3 :  NEEL - Institut Néel
4 :  CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
5 :  LSM - UMR 6417 - Laboratoire Souterrain de Modane
6 :  IRAMIS - Institut Rayonnement Matière de Saclay (ex DRECAM)
Physique/Physique/Instrumentations et Détecteurs
Data structure – Data management – ROOT – CouchDB – Dark Matter – Multi-tier