MicroTCA implementation of synchronous Ethernet-Based DAQ systems for large scale experiments

Details MicroTCA implementation of synchronous Ethernet-Based DAQ systems for large scale experiments MicroTCA implementation of synchronous Ethernet-Based DAQ systems for large scale experiments

2009-06-12

arxiv.org/abs/0906.2325v1

2009 Real Time Conference, Beijing : Chine (2009)

Physics

Instrumentation and Detectors

Talk presented at the 2009 Real Time Conference, Beijing, May '09, submitted to the proceedings

Scientific paper

Large LAr TPCs are among the most powerful detectors to address open problems in particle and astro-particle physics, such as CP violation in leptonic sector, neutrino properties and their astrophysical implications, proton decay search etc. The scale of such detector implies severe constraints on their readout and DAQ system. In this article we describe a data acquisition scheme for this new generation of large detectors. The main challenge is to propose a scalable and easy to use solution able to manage a large number of channels at the lowest cost. It is interesting to note that these constraints are very similar to those existing in Network Telecommunication Industry. We propose to study how emerging technologies like ATCA and $\mu$TCA could be used in neutrino experiments. We describe the design of an Advanced Mezzanine Board (AMC) including 32 ADC channels. This board receives 32 analogical channels at the front panel and sends the formatted data through the $\mu$TCA backplane using a Gigabit Ethernet link. The gigabit switch of the MCH is used to centralize and to send the data to the event building computer. The core of this card is a FPGA (ARIA-GX from ALTERA) including the whole system except the memories. A hardware accelerator has been implemented using a NIOS II $\mu$P and a Gigabit MAC IP. Obviously, in order to be able to reconstruct the tracks from the events a time synchronisation system is mandatory. We decided to implement the IEEE1588 standard also called Precision Timing Protocol, another emerging and promising technology in Telecommunication Industry. In this article we describe a Gigabit PTP implementation using the recovered clock of the gigabit link. By doing so the drift is directly cancelled and the PTP will be used only to evaluate and to correct the offset.

Affiliated with

Also associated with

No associations

Rating

MicroTCA implementation of synchronous Ethernet-Based DAQ systems for large scale experiments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with MicroTCA implementation of synchronous Ethernet-Based DAQ systems for large scale experiments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MicroTCA implementation of synchronous Ethernet-Based DAQ systems for large scale experiments will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-136151