Front-end electronics (FEE) has been developed for the PHENIX time expansion chamber (TEC), a multiwire tracking detector with over 20k readout channels. The FEE for the TEC consists of an analog ...preamplifier-shaping amplifier circuit board, a digital front-end module circuit board plus ancillary support boards for timing, control and communication. Signals from each chamber wire are sampled (/spl sim/40 MHz), digitized, buffered, and then formatted as 64 channel serial data packets to be transmitted via a 1-GHz optical link. Three custom ICs have been designed for this system: 1) octal preamplifier and shaping amplifier with tail cancellation and dual-gain for large dynamic range with full serial control of gain, shaping time and tail; 2) nonlinear 5-b flash ADC with 9-b dynamic range; 3) digital memory unit for programmable delay and memory depth. The FEE has been installed, commissioned, and operated in the PHENIX experiment at Brookhaven National Laboratory.
A real-time data acquisition and monitoring system was developed for coastal oceanographic parameter measurements. This system continuously measures profiles of temperature, conductivity, current ...velocity and direction as a function of depth at a number of fixed off-shore locations. The data acquisition, monitoring and control system features make this system generally suitable for unattended area monitoring applications.
The PHENIX Time Expansion Chamber Rosati, M.; Barish, K.; Botelho, S. ...
Nuclear physics. A,
12/1999, Letnik:
661, Številka:
1
Journal Article
Recenzirano
The TEC/TRD subsystem will track all charged particles and contribute to the particle identification by the measurement of energy loss. The design, construction and testing of the TEC chambers are ...described.
A computer network for real-time data acquisition, monitoring and control of a series of experiments at the Brookhaven High Flux Beam Reactor has been developed and has been set into routine ...operation. This Reactor Experiment Control Facility presently services nine neutron spectrometers and one x-ray diffractometer. Several additional experiment connections are in progress. The architecture of the facility is based on a distributed function network concept as introduced and defined elsewhere. This paper is a statement of implementation and results.
A controllable real-time data acquisition and monitoring system was developed for coastal oceanographic parameter measurements. This system continuously measures profiles of temperature, ...conductivity, current velocity and direction as a function of depth at a number of fixed off-shore locations. The data acquisition, monitoring and control system features make this system generally suitable for unattended area monitoring applications in environmental sciences. The system has been in routine operation since July 1975.
Front-end electronics (FEE) has been developed for the PHENIX time expansion chamber (TEC), a multi-wire tracking detector with over 20k readout channels. The FEE for the TEC consists of an analog ...preamplifier shaping amplifier circuit board, a digital front-end module circuit board plus ancillary support boards for timing, control and communication. Signals from each chamber wire are sampled (/spl sim/40 MHz), digitized, buffered, and then formatted as 64 channel serial data packets to be transmitted via 1 GHz optical link. Three custom IC's have been designed for this system: 1) octal preamplifier and shaping amplifier with tail cancellation and dual-gain for large dynamic range with full serial control of gain, shaping time and tail; 2) nonlinear 5 bit flash-ADC with 9 bit dynamic range; 3) digital memory unit for programmable delay and memory depth. The FEE has been installed, commissioned and operated in the PHENIX experiment at Brookhaven National Laboratory.
PDF
