Performance of the NOνA Data Acquisition and Trigger Systems for the full 14 kT Far Detector

21st International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Norman, A.^1 ; Davies, G.S.^2 ; Ding, P.F.^1 ; Dukes, E.C.^3 ; Duyan, H.^4 ; Frank, M.J.^3 ; Group, R.C.^3 ; Habig, A.^5 ; Henderson, W.^3 ; Niner, E.^2 ; Mina, R.^3 ; Moren, A.^5 ; Mualem, L.^6 ; Oksuzian, Y.^3 ; Rebel, B.^1 ; Shanahan, P.^1 ; Sheshukov, A.^7 ; Tamsett, M.^8 ; Tomsen, K.^5 ; Vinton, L.^8 ; Wang, Z.^3 ; Zamorano, B.^8 ; Zirnstien, J.^7

Fermi National Accelerator Laboratory, Bativa

IL, United States^1

Indiana University, Bloomington

IN, United States^2

University of Virginia, Charlottesville

VA, United States^3

University of South Carolina, Columbia

SC, United States^4

University of Minnesota, Duluth

MN, United States^5

California Institute of Technology, Pasadena

CA, United States^6

University of Minnesota, Minneapolis

MN, United States^7

University of Sussex, Brighton, United Kingdom^8

关键词: Data acquisition system;    Delayed coincidence;    Detector channels;    High bandwidth;    High resolution;    Read-out data;    Trigger systems;    Triggering systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/664/8/082041/pdf
DOI  :  10.1088/1742-6596/664/8/082041

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The NOvA experiment uses a continuous, free-running, dead-timeless data acquisition system to collect data from the 14 kT far detector. The DAQ system readouts the more than 344,000 detector channels and assembles the information into an raw unfiltered high bandwidth data stream. The NOvA trigger systems operate in parallel to the readout and asynchronously to the primary DAQ readout/event building chain. The data driven triggering systems for NOvA are unique in that they examine long contiguous time windows of the high resolution readout data and enable the detector to be sensitive to a wide range of physics interactions from those with fast, nanosecond scale signals up to processes with long delayed coincidences between hits which occur at the tens of milliseconds time scale. The trigger system is able to achieve a true 100% live time for the detector, making it sensitive to both beam spill related and off-spill physics.