Bunker -Target interfaces Operational standpoint A systems standpoint Beyond technical requirements Operational requirements need to be under stood as they are design drivers Bunker CDR 2.0 Iain Sutton On behalf of the NSS project team

The Bunker an important ‘node’ systems Target systems Instrument systems Logistics NSS Bunker system Instrument systems Target NBPI LSS / NBW Facility Crane Utilities What equipment is there Instrument coponent Target systems Services PSS Bunker itself Interdependencies Bi-directional Bunker is at once an ‘operational context’ and system within broader context …

Interfaces Requirement Interface System requirements specification (SRS) Installation and removal access Interface ESS-0086197.2_3 Bunker - target monolith structures ESS-0086925_2 Bunker – Insert exchange tool (IET) ESS-0191606 ICD-R NBPP-NSS, 1064NBPP-003

ESS-0060210, Bunker System, System Requirements Specification (SRS) BS.SyR-09 Title: Installation/removal access for Target Systems elements. Statement: The Bunker System shall provide safe restricted access into the bunker for the installation/removal of Target Systems elements. Rationale: The Bunker System design shall be modular in design to allow for varying partial openings of sections of the bunker that suit the size for the handling of the Target Systems elements that need to be installed and removed in the bunker. Traceability: ConOps [1]. Verification: Review of the system design.

Unfolding the requirements Access is required for the following Target systems Beam extraction (Insertion tool) Light shutter Beam-port window ‘Target utilities’ Principal requirement(s) on bunker Removable roof Work area within volume free from permanent structures Bunker support structure Instrument components Crane capacity Insertion tool Window utilities Light Shutter

Construction phase Target system Installation Target systems installed from monolith face / instrument hall Light Shutter system NB Optics (NBEX) Beam-port window Target installations are primarily scheduled before bunker construction Access Free work area

Operational phase Target systems access Operation :Beam port activation Periodicity :yearly* IET : Remote handling tool & Cask for in-monolith plug Mass 18+ tons Length 5m Requirement fulfilled Access Free work area Roof removal Level of effort Blocks handled 23 Structural cross beams 1 Duration 12-16hrs

0086197.3 Working area Rear wall R9 Pillar R6 Pillar Main drawing ESS-0086197.2_3 R6 detail ESS-0086925_2

Hall D01 IET Clearance D02  ****** Protons D02 Hall D03 W4 BIFROST Q2 2019 W6 MAGIC Q2 2019 W7 TREX Q2 2019 N7 LOKI Q2 2019 Hall D01 W5 MIRACLES Q1 2022 W8 HEIMDAL Q3 2023 N5 FREIA Q3 2023 W3 C-SPEC Q2 2019 W11 TEST Q2 2019 W2 BEER Q2 2019 IET Clearance W1 NMX Q2 2019 D02 Site clearance for IET operations require extensive removal of instrument components Requirement on Instruments  ****** Protons D02 S2 ODIN Q2 2019 E2 ESTIA Q2 2019 W3 SKADI Q2 2019 W2 DREAM Q2 2019 E7 VESPA Q2 2022 Hall D03

Monolith face interface ESS 0086925_2 Principal aspects ‘Skirt gap’ R6 pillar gap

ESS 0086925_2 Monolith skirt gap The nominal gap between systems has been maintained Monolith skirt shield wall 55 mm clearance 75 mm clearance 25 mm clearance 20 mm clearance Monolith shielding

ESS 0086925_2 Monolith R6 Additional requirement: R6 pillars to have a +/- 7mm tolerance on vertical position.

Radiological interfaces Target – NSS Monolith - Bunker Through Bulk 10% Gap streaming 90% Neutron Beam Through Bulk Working assumption Radiation emitted from all target sources into the bunker cavity, at R6, shall be less than 10% of total emitted by neutron beams. “The bunker shall shield the public from ALL sources within it

Radiological interfaces ICD-R NBPP-NSS ESS-0191606 Next ? Light shutter Port Block Outer shielding Puck ?

Radiological interfaces ICD-R NBPP-NSS ESS-0191606 Next ? Light shutter Port Block Outer shielding Puck ?

Implicit requirements Logistics

Bunker – NBEX logistics ESS-0084988 IET transport ACF docking IET handover on bunker roof from bunker crane to D01/D03 crane Exchange route NBPI/NBPP 1 3 2 Removal from Bunker Monolith crane Drop down onto Bunker transfer zone Removal with hall crane

Implicit requirements Bunker roof ‘transfer zone’ Experimental Hall crane coverage area Cranes crossover (load interchange) area Monolith crane coverage area

Logistics Principal requirement Free height below hook > 3m IET 3,6m free height 6,7m from TCS A hook height of 2.5m is a minimum for current equipment 2.7m preferred Auxiliary hoist for instrument. Special mountings will be required to ensure installation compatibility Coverage Side walls 800mm Monolith face 400mm 1,3m 3,1m 1.8m N

Take away What could possibly go wrong ?

Summing up The principal interface with respect to Target have been identified and defined. Some integration of radiological interface required Currently updates of interface documents are progressing from both sides (Target and Bunker / NSS) as design progresses in parallel. Tolerances are tight, continued vigilance approaching detailed design is critical. Guidelines will be issued at IKON for; Material use (low activation) Remote handling interfaces. Service routing. Logistics requirements. Starts with having a plan Push for reliability Building in Maintainability , manage risk Priority on critical systems Operational Integration Tooling Schedules Spares Work with experienced parters It not going to be perfect use the precious early years to Learn don't reinvent the wheel SNS ISIS Ensure future compatibility upgrade path

Thank you for your attention ! NSS Projects Division Target

Interventions Types and frequency SCHEDULED Type I(A) PERIODIC Installation Decommissioning Type I(B) REGULAR Inspection & Maintenance UNSCHEDULED Type II BREAKDOWN H2 / H3 events Interventions may be considered as two types; Type 1: Scheduled activities Type 1A: Long periodicity events Installation / Decommissioning Type 1B: Short periodicity events Inspection/ Adjustment /Replacement Type 2: Unscheduled activities (‘random’ events with 5-20 incidents p.a.) Breakdown repair Inspection / Adjustment / Replacement Accident scenario Interventions per year per bunker for a full suite of instruments in normal operation

Periodic Late install & renewal Maintenance Maintenance Replacement BOT @BOT 16 live / 26 Blind BOT +5 years +6 live BOT +10 years +5 live BOT +15 years Start of renewal program 2 or 3 a year ?