Low Energy RHIC Electron

Cooler (LEReC) in RHIC IR2

Preparation Plan

For

IRR and ARR

Collider-Accelerator Department

Revision 1

8-3-2017

1 | Page LEReC Preparation Plan

Table of Contents

Introduction.....................................................................................................................3Preparation Review Schedule.........................................................................................3Brief Description of LEReC Facilities............................................................................4Brief Description of Hazards..........................................................................................6Authorization..................................................................................................................6Conduct of Operations....................................................................................................7Training...........................................................................................................................9Activities Needing Preparation and Persons Responsible..............................................9Topics Needing Preparation and Persons Responsible.................................................10

2 | Page LEReC Preparation Plan

Introduction

This preparation plan describes the necessary activities to be completed by the Collider-Accelerator Department (C-AD) before commencing the LEReC Internal Readiness Review (IRR) and the Accelerator Readiness Review (ARR). This plan helps ensure that the C-AD successfully completes the ARR on schedule for safe and environmentally responsible operations. The plan helps C-AD prepare for the IRR, which is required by BNL’s SBMS, and the ARR, which is required by DOE Order O 420.2C, Safety of Accelerator Facilities. Following the ARR, a declaration by C-AD management is required stating that the LEReC is ready to operate. The readiness declaration is expected to occur in February 2018, after which DOE BHSO must approve start of LEReC commissioning / operation.

Preparation Review Schedule

Brief descriptions of the LEReC processes are A photo-cathode DC gun creates an electron beam At the exit of the gun, the operating electron kinetic energy is 0.4 MeV The beam is injected into a 704-SRF booster cavity, the maximum LEReC beam energy is

2.6 MeV The 704 MHz Cu-cavity may be able to boost the beam an additional amount of about 0.4

MeV The beam is then passed through the Yellow RHIC Ring, bends 180o and passes through

RHIC Blue Ring, cooling both heavy ion beams Dipole magnets deflect the electron beam into the electron beam dump

Figure 1 LEReC Layout in IR2

Table 1 provides the IRR and ARR Readiness Review Constraints needed for safe and reliable commissioning and subsequent operations. Most but not all devices and systems must be ready for the IRR to commence. All devices and systems must be ready for the ARR to

3 | Page LEReC Preparation Plan

commence.

Table 1 LEReC Readiness Review Constraints

Readiness Review Devices, Systems, Qualified Personnel and Plans to be Ready for Reviews

Date Set for Readiness Review

IRR Laser, Cathode System, Electron Gun, 704-SRF Booster Cavity, 2.1 GHz Cavity, 10 kW Dump, 9 MHz Cu Cavity, 704 MHz Cu Cavity, Diagnostic Beam Line, Electron /Ion Beam Line, Bending Magnets, Quadrupole Magnets, Instrumentation, Full Power Electron Beam Dump, Controls, Shielding, Cooling Systems (water and cryo), Power Systems (RF and magnets), Qualified Operators, Procedures, Commissioning Plan, Software QA and Cyber Security, Access Control Interlocks, Laser Interlocks, ODH Interlocks, RF Interlocks, Fault Study Plan, Emergency Plan

12-18-2017

ARR 1-15-2018

Brief Description of LEReC Facilities

Figure 1 shows the major components and layout of the LEReC in RHIC IR2. Figure 2 shows the contiguous Laser building and support buildings. The main features of the LEReC are

a shielded enclosure, which is RHIC IR2 an Access Control System for radiation protection and ODH protection a shielded full-power electron beam-dump an electrical system that uses pressurized SF6 gas an electron gun with two ASME U-stamped pressure vessels for high-voltage power accelerating cavities multiple focusing and bending magnets an RF system a pulsed laser system power supplies for RF systems and magnets a cryostat for the superconducting cavity pressurized helium piping pressurized nitrogen piping a helium compressor and supply facility a water cooling-system a local control area for RF a control area located in the C-AD Main Control Room (MCR)

4 | Page LEReC Preparation Plan

Figure 2: LEReC DC Gun and Laser at IR2; also shown are buildings where other LEReC sub-systems are located.

The following subsystems make up the LEReC and are subject to the IRR and ARR Electron Gun Laser SRF Cavity Cryogenic System Beam Diagnostics and Instrumentation Controls System Access Control System RF Power System Vacuum System Water Cooling System ODH Interlocks and Ventilation System Electron Beam Dumps LEReC Magnet Systems LEReC Magnet Power Supplies

The minimum accelerator readiness procedures and/or policies for verification by the IRR or ARR include

Operations startup procedures Normal operation procedures Emergency conditions and procedures

5 | Page LEReC Preparation Plan

Access Control System tests Interlock tests for ionizing radiation and ODH Sweep procedures for the accelerator enclosure Conduct of maintenance Conduct of operations Approval and conduct of accelerator modifications Configuration management of safety-related changes ASE and SAD

Brief Description of Hazards

The LEReC is subject to the requirements of the DOE Accelerator Safety Order, DOE O 420.2C or its successors. LEReC is a low-hazard facility with potential for no more than minor on-site and negligible off-site impact to people and the environment. The possibility of any off-site impact or major on-site impact is highly unlikely due to the physical aspects of the LEReC whereby it is dependent upon an external energy source; that is, electric power that can be easily terminated.

The LEReC has two non-standard industrial hazards. C-AD confines the radiation hazard, which is a non-standard industrial hazard, to the beam pipe or immediate surroundings within the RHIC shielded enclosures. Ionizing radiation is in existence only when electron beam is present in the accelerator or when the electron gun or accelerating cavities are powered. When accessible, C-AD categorizes these areas as Controlled Areas, TLD Required. The other non-standard industrial hazard is the potential for an oxygen deficiency hazard (ODH), due to the RHIC accelerator enclosure and the volume of liquid helium in use. C-AD categorized the RHIC enclosure as ODH 0. C-AD uses low-oxygen-concentration alarms and interlocked ventilation fans for detection and protection, respectively. Other hazards at LEReC are standard industrial hazards such as working from platforms, electrical LOTO, cryogen handling and laser operation. These are low risk activities when standard industrial hazard controls identified in SBMS are in place.

During commissioning of LEReC, C-AD will use routine radiation surveys by qualified Radiological Control Technicians using portable radiation monitors to verify the soundness of radiation-protection controls on a regular basis. C-AD designed the LEReC and RHIC shielding such that exposure to workers in Controlled Areas and uncontrolled areas is less than the annual limits, which are 100 mrem and 25 mrem, respectively.

Authorization

DOE will authorize the start of commissioning/operation following the completion of a successful ARR. This authorization will be needed by February 2018 for planned operation of LEReC. The C-AD Department Chair will notify the MCR Operations Coordinator after DOE authorization is given. Authorization documents also include the safety analyses and the required list of Credited Controls (safety envelope). Hyperlinks to these formal BNL and DOE authorization documents are

C-AD Safety Assessment Document RHIC / LEReC Accelerator Safety Envelope

6 | Page LEReC Preparation Plan

The IRR and ARR Teams will expect LEReC activities have a conduct of operations program that requires line management / supervisor authorizations for

Starting-up or restarting systems Performing corrective maintenance on systems Producing or removing existing procedures Approving temporary procedures Signing-off changes to procedures Work planning and control Authorizing changes to equipment

The IRR and ARR Teams will expect the following configuration management / assurance systems are in place for LEReC operations personnel to:

Assure systems are in proper alignment Assure compliance with ASE limits Assure Credited Controls in the ASE are implemented Assure testing and surveillances associated with safety systems are completed Assure proper status information on control panels and alarms Assure operational tests are performed following maintenance or modifications Assure trained and qualified operators Assure a document control system is in place Assure a change management system is in place Assure an unreviewed safety issue (USI) process is in place

The C-AD authorization procedures and configuration management procedures and policies in the C-AD OPM will apply to LEReC.

Conduct of Operations

The LEReC staff must have a program to report problems encountered during commissioning/operations (e.g., operational, safety, scheduling problems) to the LEReC Operations Supervisor, and the MCR Operation Coordinator if C-AD is operating other accelerators at the time. To do this, reporting procedures and a defined chain of command are required. See Figures 3 and 4.

7 | Page LEReC Preparation Plan

Figure 3 LEReC Operating Organization (RHIC Running)

Figure 4 LEReC Operating Organization (RHIC Off)

8 | Page LEReC Preparation Plan

LEReC must use OPM 2.28, Work Planning and Control for Operations for work planning. For LEReC specific procedures, the C-AD procedures system must be used. Specific LEReC procedures are in OPM Chapter 24. Off-normal events must be reported through the C-AD Critique Procedure, OPM 9.4.6, or through OPM 10.1, Occurrence Reporting. C-AD management must assure LEReC modifications are within ASE limits by using the USI Determination Procedure, OPM 1.10.1.

Training

Aside from mission related operations activities, C-AD trains LEReC operators and staff in the following

LEReC safety analysis results and relationship to Credited Controls in the ASE LEReC facility access procedures Responsibility for LEReC Credited Controls Operator response to ODH alarms and radiation interlocks and alarms Operator response to emergencies

The C-AD Training Manager, John Maraviglia, should be contacted for LEReC personnel training records. BNL qualifications for operators associated with LEReC may include electrical safety, cryogenic safety, laser safety, radiation safety and facility access training. C-AD must perform Job Training Assessments for the following LEReC positions, which will be the bases for training requirements

LEReC Subsystem Specialists LEReC Shift Leaders LEReC Operators Specialist MCR Operations Coordinator MCR Operators

Activities Needing Preparation and Persons Responsible

The following preparation activities showing responsible persons are identified for the LEReC IRR and ARR

All preparation actions items closed out (A. Fedotov and D. Passarello) Access Control System operable and tested (J. Reich) Emergency procedures completed (L. Hammons ) Operations organization defined (L. Hammons) Commissioning and operations procedures completed (L. Hammons) Radiation Fault Study Plan prepared (A. Fedotov and D. Beavis) Safety Check-Off Lists signed (RSC – D. Beavis; ASSRC – D. Raparia) All prior review committee action items closed out (A. Fedotov and D. Passarello) Accelerator authorization documents completed (E. Lessard) Training records complete (J. Maraviglia) All sub-systems installed (J. Tuozzolo) Laser system installed and ready (M. Minty) Instrumentation installed and ready (D. Gassner) Vacuum systems installed and ready (M. Mapes) Cryogenics system installed and ready (R. Than)

9 | Page LEReC Preparation Plan

Machine protection / controls system hardware / software tested and ready (J. Jamilkowski)

DC gun system and power supply system installed and ready (D. Bruno) RF system installed and ready (A. Zaltsman) Magnet system installed and ready (J. Tuozzolo)

Topics Needing Preparation and Persons Responsible

The following preparation topics showing responsible persons are identified for the LEReC IRR and ARR

RF cavities for X-ray hazards (D. Beavis) Electron beam radiation hazards and shielding (D. Beavis) RFI shielding (A. Zaltsman, P. Cirnigliaro) Configuration controlled drawings (D. Passarello) Laser system safety (A. Etkin) Laser SOP (M. Minty, A. Etkin) Cryogenic system operations and safety (R. Than) ODH protections (R. Than, P. Cirnigliaro) Electrical safety (D. Bruno, J. Sandberg) Equipment and cable tray grounds (D. Bruno, J. Tuozzolo) Enclosures or barriers over conductors (D. Bruno, J. Tuozzolo) Magnets and power supplies (J. Tuozzolo, D. Bruno) Beam instrumentation (D. Gassner) NRTL or equivalent rated equipment (J. Sandberg) LOTO (P. Cirnigliaro, J. Sandberg) Accelerator controls and controls hardware (J. Jamilkowski) Conventional facilities such as platforms and fixed ladders (P. Cirnigliaro) Certified hoists, cranes and rigging equipment (M. VanEssendelft) Review of structures supporting heavy loads (J. Tuozzolo) Heat detection, smoke detection and fire alarm systems (P. Cirnigliaro) Access Control System gate and alarm system logic (J. Reich) Critical devices for radiation safety (D. Beavis) Access Control System testing procedures (J. Reich) Water-cooling system for beam dump (J. Scaduto) Procedure configuration management (E. Lessard, D. Passarello) Configuration Management Programs (D. Passarello) Lock-Out Tag-Out procedures for LEReC (L. Hammons) LEReC Local Emergency Procedure (M. Van Essendelft) Emergency Call-Down Lists for LEReC (A. Fedotov) LEReC Shutdown Procedure, OPM Chapter 18 (L. Hammons) X-ray monitoring and TLDs (D. Beavis) Radiation shielding and fences (D. Beavis) Tier 1 Inspections (M. VanEssendelft); ASSRC Minutes (D. Raparia, P.

Cirnigliaro); LESHC and PCSS Minutes (E. Lessard); RSC Minutes (D. Beavis)1

1 Action items need to be scrubbed from records and tracked to closure – please forward actions to D. Passarello10 | Page LEReC Preparation Plan