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This document discusses the ASO (Accelerator Safety Order) requirements for the R&D ERL (Research and Development Energy Recovery Linac). Topics include hazard screening, ionizing radiation, oxygen deficiency, electrical hazards, fire hazards, and industrial hazards.
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R&D ERLMeeting Accelerator Safety Order (ASO) Requirements E. Lessard, Associate Chair for ESSHQ Collider-Accelerator Department February 17-18, 2010
O 420.2B CRD 1.a. (Complete) • R&D ERL Hazard Screening Report, NEPA Review, Safety Assessment Document (SAD) • Ionizing Radiation • Oxygen Deficiency • Electrical Hazards • Fire Hazards • Industrial Hazards
Ionizing Radiation ERL Hazards • Unshielded dose rates • Bremsstrahlung dose rates of 4x107rad/h in the forward direction at 1 meter and 5x105rad/h in the transverse direction • neutron dose equivalent rates range between 6x103 and 1x105rem/h at 1meter ERL Controls • Shielded enclosure • Interlocked gates
Ionizing Radiation ERL Hazards ERL Controls • Interlocking area-radiation monitors
Oxygen Deficiency ERL Hazards ERL Controls • ODH alarms • ODH exhaust fans
Laser Radiation, RF and X-rays ERL Hazard • Class IV laser system • 1 MW klystron source ERL Controls • Access to laser area controlled with door interlocks • Protective housing for laser and laser shutter interlock • Laser beam transported in pipe • Coordinated key system preventing access to klystron enclosure • RF transported in pipe • Steel shield housing around the klystron tube and tube base to attenuate x-rays
Electric Shock/Arc Flash ERL Hazards • Energized conductors • Operation ofbreakers and disconnects ERL Controls • Exposed conductors and terminals are covered or barriered for protection of personnel • Training for workers • Use of work planning, LOTO and Permits • Use of proper PPE and compliance with NFPA 70E • Magnets de-energized when routine work is done • Electrical equipment is NRTL registered or equivalent
Fire ERL Hazards • The maximum credible fire incident was determined to be a fire in one magnet and damage to the two adjacent magnets • While the klystron’s 100 kV transformers have 800 gallons of oil, it was felt that smoke detectors, interlocks to turn off power to the 100 kV transformers, fire sprinklers, low-flammability oil in the transformers, secondary containment and onsite fire responders would result in a less credible fire incident ERL Controls • Combustible loading was minimized in design • Periodic safety inspections • Fire detection and suppression system • Design reviewed by BNL Fire Protection Engineer • Design meets NFPA requirements • On-site fire responders • Interlocks to turn off power
O 420.2B CRD 1.d. (Complete) • R&D ERL SAD
O 420.2B CRD 2.a. (Complete) • ASE Approved by DOE February 3, 2009 • Bounding conditions • BNL Safety Envelope Limits • Corresponding Safety Envelope Parameters • Prototype ERL Beam Limits • Control of Beam Loss • Access Controls • Fire Protection • Engineered Safety Systems Requiring Calibration, Testing, Maintenance, and Inspection • Operations Envelope / Administrative Controls
O 420.2B CRD 3. (Complete) • C-AD practices used to identify USIs • Design review • Experimental safety review • Accelerator systems safety review • Identified USI Process • 1.10.1 Procedure for Documenting Unreviewed Safety Issues • 1.10.1.a CA USI Form
O 420.2B CRD 4. (ARR Open) • ARR process defined in SBMS Accelerator Safety Subject Area • Draft Commissioning Plan for ARR of R&D ERL • Module 1: G5 Test Module 3-15-11 • Module 2: Full System Testing 10-24-11
O 420.2B CRD 5.a. (Partially Complete) • C-AD OPM 1.12 Training and Qualification Plan • Applies to all C-AD employees, visitors and users • Responsibilities, qualification requirements, training requirements and records system defined • C-AD Training Manager coordinates program
O 420.2B CRD 6.c. (Partially Complete) • New or modified C-AD OPMs under development: • ERL Operational Safety Limits (2) • Configuration Management (5, 6, 7) • Lock-Out Tag-Out (2) • Local Emergency Procedure (3) • Emergency Call-Down Lists (3) • Cryogenic Systems Operation (2) • Injecting, Accelerating, Circulating and Dumping Electron Beam (1, 2) • Laser Operations (1, 2) • Access Control System Operation and Testing Procedures (2) • Shutdown Procedure (2, 3) • C-AD OPM 2.28 Work Planning is in use (4)
Summary Authorization Status • ERL Commissioning Plan needs to be finalized • Accelerator Readiness Review needs to be conducted • ERL needs DOE authorization to commission g-5 and ring • Conduct of Operations Agreement needs to be finalized • Procedures and training need to be completed • ERL needs DOE authorization to routinely operate • Questions?
Informational Slides • Remaining contractor requirements identified in DOE Accelerator Safety Order, 420.2B • Additional slides showing all additional completed requirements
O 420.2B CRD 1.b. (Complete) • SAD 4.10.3. Risk Assessment to Workers, the Public and the Environment • SAD 4.10.3.1.Radiation Risks • SAD 4.10.3.2.Environmental Risks from Radiation • SAD 4.10.3.3.Fire Risks • SAD 4.10.3.4.Electrical Risks • SAD Appendix 6, Qualitative Risk Assessments
O 420.2B CRD 1.c. (Complete) • 3.2. ERL Characteristics Related To Safety • SAD 3.5. Design Features That Exclude or Minimize Exposure to Hazards to As Low As Reasonably Achievable (ALARA) During Operation, Maintenance and Facility Modification • SAD 4.8. Selection of Control Measures that Reduce Risks to Acceptable Levels • SAD Table 4.9.a. List of Credited Controls
O 420.2B CRD 1.e. (Complete) • SAD 3.Site, Facility and Operations Description • 3.1. Environment Within Which the ERL is Constructed • 3.3. Management Methods Used In Operating the ERL • 3.4. Design Criteria and As-Built Characteristics, Supporting Systems and Components with Safety-Related Functions • 3.6. BNL, C-AD and R&D ERL Organizational Structure
O 420.2B CRD 2.b. (Complete) • C-AD OPM 2.5 Series of ASE procedures for operators • Separate procedure for each C-AD Accelerator Facility • Defines operator responsibilities and notification steps for unpermitted operating conditions • ASE Authorized Alternatives are listed in ASE procedure • C-AD OPM 1.1 and BNL SBMS Accelerator Safety Subject Area define restart authorizations and includes DOE approval
O 420.2B CRD 1.f. (Complete) • C-AD OPM 13.4.2.d List of C-AD Records • SADs are defined as Controlled Documents • BNL SBMS Document Control Subject Area • 5 year review period • Identified USI process is used to maintain the SAD current during the interim
O 420.2B CRD 5.b. (Complete) • Draft Conduct of Operations Agreement for R&D ERL includes C-AD OPM C of O Procedures: • 2.2 Operating Practices • 2.3 Activities in Control Rooms • 2.4 Operator Trainees • 2.12 Communications Practices • 2.28 Work Planning and Control for Operations
O 420.2B CRD 5.b. (Complete) • C-AD OPM 14.31.2 Occupational Safety and Health Training Summary for C-AD Operations and Maintenance Activities • C-AD Access Training • Job Training Assessments
O 420.2B CRD 6.a. (Complete) • C-AD OPM 1.4.3 Procedure for Implementing New or Revised Permanent Procedures, or Canceling Permanent Procedures • C-AD procedures require Department Chair approval
O 420.2B CRD 6.b. (Complete) • 1.4.1 Format of C-A Policies, Programs and Operating Procedures • Format meets O 420.2B CRD 6.b. requirements
O 420.2B CRD 7.a. (Complete) • C-AD safety review programs include: • Inspections of facilities • Outdoor storage area inspections • Inspection of satellite-waste stations • Tank inspections • 90-day waste area inspections • Testing of engineered safety systems
O 420.2B CRD 7.b. (Complete) • C-AD safety review programs include: • Critiques of off-normal events • QA assessment of procedure implementation • QA assessment of training and qualifications of staff • Manager work observations • Supervisor work observations • Documenting and tracking corrective actions
O 420.2B CRD 8. (Complete) • Shielding Policy for the R&D ERL is the approved C-AD Shielding Policy