Introduction and Charge to the Review of ESS Target building and Instrument Hall design requirements Roland Garoby November 2014, Lund

ESS is a neutron spallation source made possible by a collaboration of European countries ESS is located in southern Sweden adjacent to MAX-IV (A 4 th generation light source) European Spallation Source (ESS)

ESS – Neutron facilities and bridging the neutron gap ESS long pulse is more powerful and times brighter than existing facilities Compliments existing short pulse neutron scattering facilities

Linac ESS linac will be the most powerful proton linac Average beam power of 5 MW Peak beam power of 125 MW Acceleration to 2 GeV Peak proton beam current of 62.5 mA Pulse length of 2.86 ms at a rate of 14 Hz (4% duty factor) 97% of acceleration provided by superconducting cavities 150 individual high power RF sources 80% of the RF power sources requiring over 1.1 MW of peak RF power ~ 200 M€ on the RF system alone

ESS Linac evolution

Target – monolith Requirements: Convert protons to neutrons Peak brightness (E < 10 meV) at 5 MW: 2x10 14 n/cm 2 /s/sr (30 x ILL) Heat removal Confinement and shielding Unique features: Rotating target He-cooled W target 6 Proton beam window Moderator and reflector plug Target wheel Neutron beam extraction Target drive housing Neutron beam window Steel shielding Monolith liner

Target station 7 ~ 130 m long Accelerator – Target interface Target monolith, incl. Moderator & Reflector Systems, and Target Systems Fluid Systems High bay Remote Handling Systems Hot cells plus casks and tooling to transport components from monolith to cells Safety credited controls to protect workers, pubic, and environment from radioactive hazard

Target station and experimental halls

Commitment to 22 instruments 1st Neutrons Construction Budget Expected Instruments in hot commissioning Plans for Instruments (1-22) Initial Operations Budget Steady-Sate Budget Expected Instruments in Initial Science Programme Start of Instrument Construction Expected Instruments in Science Programme Scheduled Neutron Production On Off Regular Call for User Proposals ….. 1st Call for User Proposals Engineering Design Construction of Instruments # 1-16 # Engineering Design Construction of Instruments

How the ESS site looks like today… 10

How ESS will ultimately look like…

Scope and Charge to the Review Committee 12 Scope The scope of this review is the requirements established for the conventional facilities (i.e. buildings and utilities) associated with the Target Building and Instrument Halls. Charge The committee is asked to address the following questions: Are the requirements for the facility complete? Are the requirements clearly stated and sufficiently justified? Do the building design concepts adequately meet the requirements? Comment if the building design concepts exceed the scope of the requirements.

Deliverables… 13 Review Deliverables A report in PowerPoint format is expected at the end of the review. The report should address each of the charge items in terms of: Findings – What the project told the review committee Comments – What the review committee thinks of what was presented and suggestions for future efforts. Recommendations – What the committee feels strongly that the project should do.

Agenda Wednesday, Nov 12 09:00Executive Session with ESS Management 09:30Target Project Overview - J. Haines 10:00Target Building Requirements Overview- E. Pitcher 10:45Break 11:00Monolith Interface Requirements- R. Linander 11:20Hot Cell and Waste Handling Requirements- M. Göhran 11:40Water Cooling and Utility Room Requirements- P. Nilsson 12:00Lunch 13:00Target Building Design Concept and Response to Requirements- J. Molander 14:00Committee Questions and Executive Session 17:30Adjourn

Agenda Thursday, Nov 13 09:00Executive Session 09:30NSS Overview- D. Argyriou 10:00Space Requirements - R. Connatser 10:45Break 11:00Utilities Requirements - M. Everett 11:45Lunch 13:00Operational & Technical Requirements- R. Connatser 13:45Labs & Workshops Requirements- M. Everett 14:30Break 14:45Experiment Halls Design Concept and Response to Requirements - J. Molander 15:45Committee Questions and Executive Session

Agenda Friday, Nov 14 08:30Executive Session & Report Writing 11:00Closeout with ESS Management 11:30Open Closeout 12:00Lunch 13:00Adjourn