English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The SoLid experiment aims to measure neutrino oscillation at a baseline of6.4 m from the BR2 nuclear reactor in Belgium. Anti-neutrinos interact viainverse beta decay (IBD), resulting in a positron and neutron signal that arecorrelated in time and space. The detector operates in a surface building, withmodest shielding, and relies on extremely efficient online rejection ofbackgrounds in order to identify these interactions. A novel detector designhas been developed using 12800 5 cm cubes for high segmentation. Each cube isformed of a sandwich of two scintillators, PVT and 6LiF:ZnS(Ag), allowing thedetection and identification of positrons and neutrons respectively. The activevolume of the detector is an array of cubes measuring 80x80x250 cm(corresponding to a fiducial mass of 1.6 T), which is read out in layers usingtwo dimensional arrays of wavelength shifting fibres and siliconphotomultipliers, for a total of 3200 readout channels. Signals are recordedwith 14 bit resolution, and at 40 MHz sampling frequency, for a total raw datarate of over 2 Tbit/s. In this paper, we describe a novel readout and triggersystem built for the experiment, that satisfies requirements on: compactness,low power, high performance, and very low cost per channel. The system uses acombination of high price-performance FPGAs with a gigabit Ethernet basedreadout system, and its total power consumption is under 1 kW. The use of zerosuppression techniques, combined with pulse shape discrimination triggeralgorithms to detect neutrons, results in an online data reduction factor ofaround 10000. The neutron trigger is combined with a large per-channel historytime buffer, allowing for unbiased positron detection. The system wascommissioned in late 2017, with successful physics data taking established inearly 2018.

Commissioning and Operation of the Readout System for the SoLid Neutrino Detector