Optical Properties of Liquid Argon measured by the PDS in - - PowerPoint PPT Presentation

▶
optical properties of liquid argon measured by the pds in
SMART_READER_LITE
LIVE PREVIEW

Optical Properties of Liquid Argon measured by the PDS in - - PowerPoint PPT Presentation

Jan 25, 2024 161 likes •350 views

Optical Properties of Liquid Argon measured by the PDS in ProtoDUNE-SP Bryan Ramson (on behalf of the DUNE collaboration) LIDINE 2019, Manchester, UK August 30, 2019 You Inst Logo Introduction(What is DUNE?) The Fermilab Deep Underground

slide-1
SLIDE 1

You Inst Logo

Optical Properties of Liquid Argon measured by the PDS in ProtoDUNE-SP

Bryan Ramson (on behalf of the DUNE collaboration) LIDINE 2019, Manchester, UK August 30, 2019

slide-2
SLIDE 2

You Inst Logo

Introduction—(What is DUNE?)

Bryan Ramson | Optical Properties of LAr measured by the PDS 2

The Fermilab Deep Underground Neutrino Experiment (DUNE) is a future accelerator based neutrino experiment hosted at Fermilab.

Will measure with greater precision:

  • leptonic CP-violation (!CP,"L=0?)
  • Neutrino oscillation (#12, #13, and #23)
  • Neutrino mass hierarchy (NH or IH)

Will observe or further constrain:

  • Proton Decay ("B=0?,GUT)

Will observe:

  • Core-collapse/supernova

burst neutrinos

August 30, 2019

Alex Himmel, 8/28/2019, 2:45 PM Neutrino Overview

slide-3
SLIDE 3

You Inst Logo

Introduction—(What is ProtoDUNE?)

3

The ProtoDUNE project is two full scale prototypes of different DUNE Far Detector Modules with proton beam from the CERN SPS. One is based on a Single Phase (SP) Liquid-Argon (LAr) Time Projection Chamber (TPC) and the

  • ther a Dual Phase (DP) Liquid/Gaseous-Argon TPC.

ProtoDUNE-SP consists of:

  • Single-Phase (SP) Liquid-Argon (LAr) based Time-Projection Chamber (TPC)
  • Photon Detection System (PDS)
  • Cosmic Ray Tagger (CRT)

0.3-7 GeV Beam from CERN SPS APA Sketch

Individual Photon Detectors August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

slide-4
SLIDE 4

You Inst Logo

Introduction—(What is ProtoDUNE?)

3

The ProtoDUNE project is two full scale prototypes of different DUNE Far Detector Modules with proton beam from the CERN SPS. One is based on a Single Phase (SP) Liquid-Argon (LAr) Time Projection Chamber (TPC) and the

  • ther a Dual Phase (DP) Liquid/Gaseous-Argon TPC.

ProtoDUNE-SP consists of:

  • Single-Phase (SP) Liquid-Argon (LAr) based Time-Projection Chamber (TPC)
  • Photon Detection System (PDS)
  • Cosmic Ray Tagger (CRT)

0.3-7 GeV Beam from CERN SPS 0.3-7 GeV Beam from CERN SPS

August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

slide-5
SLIDE 5

You Inst Logo

Introduction—(What is ProtoDUNE?)

3

The ProtoDUNE project is two full scale prototypes of different DUNE Far Detector Modules with proton beam from the CERN SPS. One is based on a Single Phase (SP) Liquid-Argon (LAr) Time Projection Chamber (TPC) and the

  • ther a Dual Phase (DP) Liquid/Gaseous-Argon TPC.

ProtoDUNE-SP consists of:

  • Single-Phase (SP) Liquid-Argon (LAr) based Time-Projection Chamber (TPC)
  • Photon Detection System (PDS)
  • Cosmic Ray Tagger (CRT)

0.3-7 GeV Beam from CERN SPS 0.3-7 GeV Beam from CERN SPS

August 30, 2019

Dante Totani, 8/29/2019, 9:15 AM Single photon rate observation and first calorimetric energy reconstruction

  • f beam events from LAr scintillation light in protoDUNE-SP

Bryan Ramson | Optical Properties of LAr measured by the PDS

slide-6
SLIDE 6

You Inst Logo

The ProtoDUNE-SP PDS as a testbed

4

”Dip-Coated” (DC) Type Collector ⨉ 29 ”Double-Shifted” (DS) Type Collector ⨉ 29 ”ARAPUCA” Type Collector ⨉ 2

  • (For DC & DS) 1 Collector + 12 Sensors

= 1 Detector with 4 channels (1 Channel = 3 passively ganged sensors)

  • (For ARAPUCA) 1 Collector + 144

Sensors = 1 Detector with 12 channels (1 Channel = 12 passively ganged sensors)

  • Two types of sensors: SensL SiPMs

and Hamamatsu MPPCs

  • Three types of Photon Collectors and

two types of Photon Sensors across 60 Detectors

August 30, 2019

  • Detector wide timing resolution improves by a factor of 1000!
  • ~60% of interaction energy produces scintillation light, enabling a beam

particle calorimetry cross-check

  • Necessary for proton decay and supernova physics.

Dante Totani, 8/29/2019, 9:15 AM Single photon rate observation and first calorimetric energy reconstruction of beam events from LAr scintillation light in protoDUNE-SP

Christopher Macias, 8/30/2019, 2:20 PM Photon Detection System for ProtoDUNE Single Phase Ettore Segreto, 8/29/2019, 9:45 AM X-ARAPUCA @ UNICAMP Laura Paulucci, 8/30/2019, 9:00 AM A complete simulation of the X- ARAPUCA device for detection of scintillation photons

Bryan Ramson | Optical Properties of LAr measured by the PDS

slide-7
SLIDE 7

You Inst Logo

The ProtoDUNE-SP PDS as a testbed

4

”Dip-Coated” (DC) Type Collector ⨉ 29 ”Double-Shifted” (DS) Type Collector ⨉ 29 ”ARAPUCA” Type Collector ⨉ 2

ProtoDUNE-SP Geometry (sans CRT)

August 30, 2019

  • Detector wide timing resolution improves by a factor of 1000!
  • ~60% of interaction energy produces scintillation light, enabling a beam

particle calorimetry cross-check

  • Necessary for proton decay and supernova physics.

Dante Totani, 8/29/2019, 9:15 AM Single photon rate observation and first calorimetric energy reconstruction of beam events from LAr scintillation light in protoDUNE-SP

  • (For DC & DS) 1 Collector + 12 Sensors

= 1 Detector with 4 channels (1 Channel = 3 passively ganged sensors)

  • (For ARAPUCA) 1 Collector + 144

Sensors = 1 Detector with 12 channels (1 Channel = 12 passively ganged sensors)

  • Two types of sensors: SensL SiPMs

and Hamamatsu MPPCs

  • Three types of Photon Collectors and

two types of Photon Sensors across 60 Detectors

Christopher Macias, 8/30/2019, 2:20 PM Photon Detection System for ProtoDUNE Single Phase

Bryan Ramson | Optical Properties of LAr measured by the PDS

slide-8
SLIDE 8

You Inst Logo

Cosmic Sample from CRT Triggering

5 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Can force all ProtoDUNE-SP

subsystems to trigger on CRT pixel coincidence.

slide-9
SLIDE 9

You Inst Logo

Cosmic Sample from CRT Triggering

5 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Can force all ProtoDUNE-SP

subsystems to trigger on CRT pixel coincidence.

  • Cosmic muons entering/exiting

through upstream/downstream planes are reconstructed in TPC

slide-10
SLIDE 10

You Inst Logo

Cosmic Sample from CRT Triggering

6 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Can refine CRT/TPC matching through comparison with
  • rientation of CRT Pixels
slide-11
SLIDE 11

You Inst Logo

Cosmic Sample from CRT Triggering

6 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Can refine CRT/TPC matching through comparison with
  • rientation of CRT Pixels
slide-12
SLIDE 12

You Inst Logo

Cosmic Sample from CRT Triggering

6 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Can refine CRT/TPC matching through comparison with
  • rientation of CRT Pixels
slide-13
SLIDE 13

You Inst Logo

Light from Cosmics

7 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Sample is about 4 months of CRT-triggered cosmic data!

Light Stats Tech Average StdDev SensL+DC 20.24 17.19 MPPC+DC 37.61 27.49 SENSL+DS 84.22 79.39 MPPC+DS 256.38 201.62 ARAPUCA 689.23 630.13

slide-14
SLIDE 14

You Inst Logo

Nov/18 Dec/18 Jan/19 Feb/19

0.75 0.8 0.85 0.9 0.95 1 1.05 1.1 1.15 1.2

Normalized to Avg Integrated Light Yield

APA 4 APA 5 APA 6

Nov/18 Dec/18 Jan/19 Feb/19 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 Normalized to Avg Integrated Light Yield

576 cm 514 cm 452 cm 389 cm 327 cm 265 cm 202 cm 140 cm 78 cm 15 cm

Light from Cosmics

7 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Sample is about 4 months of CRT-triggered cosmic data!

Light Stats Tech Average StdDev SensL+DC 20.24 17.19 MPPC+DC 37.61 27.49 SENSL+DS 84.22 79.39 MPPC+DS 256.38 201.62 ARAPUCA 689.23 630.13

  • Sample stability varies slightly by depth and height of photon detector (<10%).
slide-15
SLIDE 15

You Inst Logo

Nov/18 Dec/18 Jan/19 Feb/19 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 Normalized to Avg Integrated Light Yield

MPPC+DS SensL+DS MPPC+DC SensL+DC Arapuca

Light from Cosmics

7 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Sample is about 4 months of CRT-triggered cosmic data!

Light Stats Tech Average StdDev SensL+DC 20.24 17.19 MPPC+DC 37.61 27.49 SENSL+DS 84.22 79.39 MPPC+DS 256.38 201.62 ARAPUCA 689.23 630.13

  • Sample variation by technology is small (<4%).
slide-16
SLIDE 16

You Inst Logo

Towards an Estimate of Attenuation

8 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

! ∝ #$%&, λ = *+,-./0. + *3456789: + *;.<=.

  • Light from many sources

(i.e. many “slices” of the track) complicates the concept of a single isotropic light source, track-integrated pseudo- attenuation approximates true attenuation!

  • Measurement of true attenuation currently untenable in

ProtoDUNE-SP, however “pseudo-attenuation” is measurable with cosmics!

slide-17
SLIDE 17

You Inst Logo

Towards an Estimate of Attenuation

8 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • Measurement of true attenuation currently untenable in

ProtoDUNE-SP, however “pseudo-attenuation” is measurable with cosmics!

! ∝ #$%&, λ = *+,-./0. + *3456789: + *;.<=.

!>-7?@. ∝ #;$%ABCDEF& G = 8.07 ± 0.04 → #; = 3,197 ± 1 QR *>-7?@. = 0.009 ± 0.003 = 111 ± 37 S

slide-18
SLIDE 18

You Inst Logo

Summary and Next Steps

9 August 30, 2019 Bryan Ramson | Optical Properties of LAr measured by the PDS

  • An estimate of the optical properties was performed

using cosmic tracks collected over four months in ProtoDUNE-SP.

  • The light collected over the four months after the beam

period was relatively stable in rate as were the collection efficiency of the different technologies.

  • Pseudo-attenuation was used to estimate attenuation,

but is by construction less precise than a true single source attenuation measurement.

  • Possible effects from reflections and contaminants exist.
  • Some effects can be disentangled with Monte Carlo.