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21-25 May 2012
New York City, NY, USA
US/Eastern timezone

The Double Chooz Online System

24 May 2012, 13:30
4h 45m
Rosenthal Pavilion (10th floor) (Kimmel Center)

Rosenthal Pavilion (10th floor)

Kimmel Center

Poster Online Computing (track 1) Poster Session


Matthew Toups (Columbia University)


The Double Chooz experiment searches for reactor neutrino oscillations at the Chooz nuclear power plant. A client/server model is used to coordinate actions among several online systems over TCP/IP sockets. A central run control server synchronizes data-taking among two independent data acquisition (DAQ) systems via a common communication protocol and state machine definition. Calibration subsystems are controlled by a calibration server which establishes a connection to one the DAQs. The data are written to buffer disks in the experimental hall and diagnostic information is generated using fast reconstructions. An automatic data transfer system tracks and manages the relocation of the data files to permanent, offsite storage. Various hardware-level and environmental information are monitored by a slow-control system. The DAQ, slow control, and data transfer systems send information to a centralized monitoring server from which diagnostic information can be visualized via a java-based graphical user interface. Since access to the experimental site is restricted, all systems have been designed to operate remotely and employ robust exception-handling techniques.

Primary author

Matthew Toups (Columbia University)


Dr Anatael Cabrera (APC/in2p3)

Presentation materials