Testing readout both cold and warm

The cold electronics team at Brookhaven received the first prototype cold ADC ASIC in mid-January and tested a preliminary sample at both room and liquid nitrogen temperatures… Teams at Brookhaven and Fermilab are testing several prototype Warm Interface Boards…


Getting the high voltage right

As DUNE pioneers one technology after another, each one requires validation. Since high voltage issues in liquid argon are not fully understood, work is advancing on a setup at Fermilab to evaluate the ProtoDUNE-SP high voltage design…


Algorithms for the machine-learning era

LArTPC detectors produce image-like projections of particle trajectories, but due to the very large sizes of these images, current reconstruction approaches have only been able to process strongly reduced representations of the data… Exploration of the full potential of LArTPC detectors, therefore, requires cutting-edge computing technologies, such as deep neural networks…


Monitoring data quality and detector status

Experiments are only as good as their data. Online monitoring (OM) and prompt processing systems will ensure that the ProtoDUNEs, and eventually DUNE, can keep nearly real-time track of data quality and detector status, and fix any problems quickly, giving the detectors more time to accumulate valuable data…


Getting LArSoft in shape for DUNE

This month nus2surf reports on two of the efforts covered in the FD Optimization Task Force report, single-phase far detector reconstruction, and detector optimization studies, led by Tingjun Yang and Xin Qian, and dual-phase (DP) simulation and reconstruction, led by Vyacheslav Galymov. LArSoft, a software environment for event simulation, reconstruction and analysis, serves as the framework for all this work…


Unwinding the APA winding mystery

“Almost everyone who visits to see the APAs and wire-winding machine – physicists, engineers, everybody — asks about how the wires are wound,” said Bob Paulos, director of the Physical Sciences Laboratory (PSL), where the first three APAs for ProtoDUNE-SP are being fabricated. “We have to explain it better…”


Ready to assemble the SP team at CERN

The first long-term traveler for the installation of the ProtoDUNE-SP detector has arrived in Geneva. Fermilab’s Roberto Acciarri, the coordinator for the Detector Integration, Testing and Installation working group, will spend about two years at CERN coordinating these efforts… Acciarri will be a rich source of information for the newcomers — and a great guy to hang out with…


Proto-ProtoDUNE-SP at Ash River

Bill Miller, a key member of the ProtoDUNE-SP team, is leading the effort to prototype the mechanical installation of the TPC components to ensure that all the latches and hinges planned for ProtoDUNE-SP fit and hold the components correctly and securely, to determine what paths the cables will take, and to work out details of the installation procedure for the team at CERN to follow…