Abstract

The preponderance of matter over antimatter in the early universe, the dynamics of the supernovae that produced the heavy elements necessary for life, and whether protons eventually decay—these mysteries at the forefront of particle physics and astrophysics are key to understanding the early evolution of our universe, its current state, and its eventual fate. The Deep Underground Neutrino Experiment (DUNE) is an international world-class experiment dedicated to addressing these questions as it searches for leptonic charge-parity symmetry violation, stands ready to capture supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector technical design report (TDR) describes the DUNE physics program and the technical designs of the single- and dual-phase DUNE liquid argon TPC far detector modules. Volume III of this TDR describes how the activities required to design, construct, fabricate, install, and commission the DUNE far detector modules are organized and managed. This volume details the organizational structures that will carry out and/or oversee the planned far detector activities safely, successfully, on time, and on budget. It presents overviews of the facilities, supporting infrastructure, and detectors for context, and it outlines the project-related functions and methodologies used by the DUNE technical coordination organization, focusing on the areas of integration engineering, technical reviews, quality assurance and control, and safety oversight. Because of its more advanced stage of development, functional examples presented in this volume focus primarily on the single-phase (SP) detector module.

Highlights

  • The far detector (FD) modules are hosted at the Long-Baseline Neutrino Facility (LBNF) site at the Sanford Underground Research Facility (SURF)

  • The Deep Underground Neutrino Experiment (DUNE) FD construction project is one piece of the global LBNF and DUNE project (LBNF/DUNE), which encompasses all of the facilities, supporting infrastructure, and detector elements required to carry out the DUNE science program at SURF

  • The activities of the consortia are overseen and coordinated through the DUNE technical coordination organization headed by the DUNE technical coordinator (TC)

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Summary

DUNE high-level system specifications owned by the EB

A.6 Specifications for SP-FD. A.7 APA specifications. A.8 HV specifications. A.9 TPC electronics specifications. A.10 PDS specifications. A.11 Calibration specifications. A.12 DAQ specifications. A.13 CISC specifications. A.14 Installation specifications. A.15 Specifications for DP-FD. A.16 DP CRP specifications. A.17 DP HV specifications. A.18 DP TPC electronics specifications. A.19 DP PDS specifications. A.20 DP calibration specifications. A.21 DP DAQ specifications. A.22 DP CISC specifications.

A.39 List of identified hazards
Executive summary
Global project partners
Chapter 2. Global project organization
Experimental Facilities Interface Group
Joint Project Office
Coordinated global project functions
Change control and document management
Scheduling
Review planning and oversight
Development of partner agreements
ProtoDUNE experience
DUNE consortia
DUNE collaboration management
Technical coordination
Technical coordination organization
Schedule
Risk management
Review process
DUNE work flow
Far site safety
Chapter 4. Detector installation and commissioning organization
Integration office management
Underground caverns
Trial assembly at Ash River
South Dakota Services Division
Chapter 5. Facility description
Detector caverns
Cryostat
Cryogenics
Detector grounding
Detector power
Data fibers
Central Utility Cavern Control and DAQ Rooms
5.10 Surface rooms
5.11 DUNE detector safety system
DUNE single-phase far detector module
DUNE dual-phase far detector module
DUNE far detector consortia
DUNE design maturity
Mechanical integration models
Chapter 7. Integration engineering
Envelope and assembly models
Integration and interface drawings
Electrical integration
Electrical integration documentation
Configuration and drawing storage and dissemination
Organization of interfaces and interface documents
Engineering change control
Value engineering
Design reviews
Production reviews
Installation reviews
Operations reviews
Review tracking
Lessons learned
Reporting
Overview of DUNE quality assurance
Purpose
Quality assurance program
Chapter 9. Quality assurance
Personnel training and qualification
Quality improvement and lessons learned
Documents and records
Work processes
Fabrication work processes
Change-controlled work processes
Design
Design process
Procurement
Assessments
Independent assessments
9.10 DUNE quality control
9.10.1 APA quality control
9.10.2 HV quality control
9.10.3 TPC electronics quality control
9.10.4 PD quality control
9.10.6 DAQ quality control
9.11 ProtoDUNE to DUNE QA approach
10.2 National Environmental Protection Act compliance
10.5.5 Emergency management
Interface documents
Start detector module 1 installation
Requirements
PDS 5 all Minimum drift field System noise Light yield
APA 9 APA 10 APA
Single-phase
Dual-phase
Findings

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