The SoLid Experiment Nick Ryder On behalf of the SoLid - PowerPoint PPT Presentation

The SoLid Experiment Nick Ryder On behalf of the SoLid collaboration nick.ryder@physics.ox.ac.uk Merton College, University of Oxford Workshop on Applied Antineutrino Physics 2014 N. Ryder (Oxford) The SoLid Experiment AAP 2014 1 / 19

Overview The SoLid experiment Detection principle Experiment phases: BR2 at SCK•CEN 5.5 m R&D: 8 kg prototype Phase 1: 288 kg module Phase 2: 2.88 T detector N. Ryder (Oxford) The SoLid Experiment AAP 2014 2 / 19

SoLid experiment Probe reactor anomaly Demonstrate reactor monitoring 5 - 10 m from BR2 reactor core 2.88 T detector BR2 at 5 × 5 × 5 cm 3 PVT cubes SCK•CEN 5.5 m 6 LiF:ZnS(Ag) layers Wavelength shifting fibres Silicon photomultipliers N. Ryder (Oxford) The SoLid Experiment AAP 2014 3 / 19

SoLid Collaboration N. Ryder (Oxford) The SoLid Experiment AAP 2014 4 / 19

BR2 reactor at SCK CEN Highly enriched uranium Compact reactor core Low background rate No nearby experiments SCK • CEN are awesome N. Ryder (Oxford) The SoLid Experiment AAP 2014 5 / 19

Detection principle - composite scintillator neutron channel 1 signal amplitude [pixel avalanches] 12 channel 7 6 LiF:ZnS(Ag) 10 8 6 4 2 n 0 γ -2 0 50 100 150 200 250 300 350 400 time [samples] e/ / γ µ 5 cm channel 3 signal amplitude [pixel avalanches] 120 channel 7 γ 100 80 60 40 PVT 20 0 5 cm 0 50 100 150 200 250 300 350 400 time [samples] N. Ryder (Oxford) The SoLid Experiment AAP 2014 6 / 19

Detection principle - segmentation/topology Inverse beta decay event Fast neutron event N. Ryder (Oxford) The SoLid Experiment AAP 2014 7 / 19

8 kg prototype detector Purposes: Proof of composite scintillator concept Develop reconstruction techniques Measure backgrounds at experimental location TRL 2 - 3 N. Ryder (Oxford) The SoLid Experiment AAP 2014 8 / 19

8 kg prototype detector - particle ID 1000 integral [PA] 4 10 900 800 Neutrons 3 10 700 600 500 2 10 400 Muons 300 10 200 e/γ 100 0 1 0 20 40 60 80 100 120 amplitude [PA] N. Ryder (Oxford) The SoLid Experiment AAP 2014 9 / 19

8 kg prototype detector - time coincidences N. Ryder (Oxford) The SoLid Experiment AAP 2014 10 / 19

288 kg detector module Purposes: 80 × 80 × 45 cm 3 Proof of event topology concept Measure ¯ ν e energy spectrum Compare measured and calculated flux and spectrum Demonstrate reactor monitoring Scale up production, DAQ, etc. Improve reconstruction, analysis TRL 3 - 5 N. Ryder (Oxford) The SoLid Experiment AAP 2014 11 / 19

288 kg detector module - construction N. Ryder (Oxford) The SoLid Experiment AAP 2014 12 / 19

288 kg detector module - electronics N. Ryder (Oxford) The SoLid Experiment AAP 2014 13 / 19

288 kg detector module - source tests N. Ryder (Oxford) The SoLid Experiment AAP 2014 14 / 19

288 kg detector module - simulations N. Ryder (Oxford) The SoLid Experiment AAP 2014 15 / 19

288 kg detector module - reactor calculations H 2 O A l M -3 10 f -4 10 - S MCNPX/CINDER90 (SCK.CEN) -5 10 MC MURE ENDFB6.8 (SUBATECH) -6 10 B eMa trix - D 0 5 10 15 20 25 Days ba Fuel elem ent geom etryproducedwithM URE co N. Ryder (Oxford) The SoLid Experiment AAP 2014 16 / 19

288 kg detector module - deployment N. Ryder (Oxford) The SoLid Experiment AAP 2014 17 / 19

2.88 tonne detector BR2 at Purposes: 5.5 m SCK•CEN Measure or rule out short baseline oscillations Shape only Rate and shape Industrial detector production Online ¯ ν e energy spectra TRL 5 - 7 N. Ryder (Oxford) The SoLid Experiment AAP 2014 18 / 19

Conclusions R&D phase of SoLid experiment nearing completion Backgrounds at reactor measured with 8 kg prototype detector First phase of SoLid experiment ongoing 288 kg detector deployed and starting to take data Second phase to start soon Construction of 2.88 T detector N. Ryder (Oxford) The SoLid Experiment AAP 2014 19 / 19