1. Spectrometer Solenoid Test Plan Workshop: Safety Considerations Steve Virostek - LBNL February 17, 2012

2. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 2 -- 2 - Safety Considerations  Steve Virostek  LBNL Topics Overall safety scheme Overall safety scheme Specific Wang NMR issues Specific Wang NMR issues Personnel requirements Personnel requirements Specific topics related to magnet testing Specific topics related to magnet testing  Liquid cryogens  High magnetic fields  Pressurized gas  Electrical hazards

3. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 3 -- 3 - Safety Considerations  Steve Virostek  LBNL Overall Scheme We face unique safety concerns with many people from various institutions working at a private company We face unique safety concerns with many people from various institutions working at a private company Personnel working at Wang NMR must adhere to safety rules of their home institutions Personnel working at Wang NMR must adhere to safety rules of their home institutions Individuals are to only to perform tasks for which they have specific training Individuals are to only to perform tasks for which they have specific training Everyone is responsible for identifying and helping to mitigate sfaety issues Everyone is responsible for identifying and helping to mitigate sfaety issues

4. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 4 -- 4 - Safety Considerations  Steve Virostek  LBNL Safety at Wang NMR Wang NMR follows safety procedures that are generally less stringent than national labs Wang NMR follows safety procedures that are generally less stringent than national labs We must not relax our own requirements simply because we are off site We must not relax our own requirements simply because we are off site Some of the equipment at Wang NMR may not meet our standards and should be considered carefully before using Some of the equipment at Wang NMR may not meet our standards and should be considered carefully before using Wang NMR personnel are adequately trained for certain tasks and should be utilized as needed Wang NMR personnel are adequately trained for certain tasks and should be utilized as needed

5. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 5 -- 5 - Safety Considerations  Steve Virostek  LBNL Personnel Requirements Bert Wang is ultimately in charge of his facility and should approve of all operations Bert Wang is ultimately in charge of his facility and should approve of all operations Individuals working at Wang NMR must have appropriate safety training for any hazardous tasks they will carry out Individuals working at Wang NMR must have appropriate safety training for any hazardous tasks they will carry out For off-hour operations, at least two people must be present at all times For off-hour operations, at least two people must be present at all times

6. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 6 -- 6 - Safety Considerations  Steve Virostek  LBNL Liquid Cryogens Large quantities of LN and LHe will be used during magnet cooldown and training Large quantities of LN and LHe will be used during magnet cooldown and training Anyone working with cryogens must have the appropriate training Anyone working with cryogens must have the appropriate training Minimum PPE: safety glasses w/side shields, insulated gloves Minimum PPE: safety glasses w/side shields, insulated gloves May involve working at heights (transfer line) May involve working at heights (transfer line)

7. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 7 -- 7 - Safety Considerations  Steve Virostek  LBNL Magnetic Fields High magnetic fields will be present near the magnet during training (3 to 4 Tesla in bore) High magnetic fields will be present near the magnet during training (3 to 4 Tesla in bore) A safety zone will be marked out around the magnet testing area A safety zone will be marked out around the magnet testing area A sweep of the safety zone for magnetic tools will be conducted before energizing the magnet A sweep of the safety zone for magnetic tools will be conducted before energizing the magnet Common items may be sensitive to magnetic fields: credit cards, phones, watches etc. Common items may be sensitive to magnetic fields: credit cards, phones, watches etc. Pacemakers are sensitive to low fields Pacemakers are sensitive to low fields

8. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 8 -- 8 - Safety Considerations  Steve Virostek  LBNL Pressurized Gas Pressurized gas may be present due to vaporizing cryogens Pressurized gas may be present due to vaporizing cryogens Pressure relief devices are present on both the cold mass and vacuum vessel Pressure relief devices are present on both the cold mass and vacuum vessel Escaping helium at high velocity, low temperature may pose a hazard during a quench Escaping helium at high velocity, low temperature may pose a hazard during a quench

9. LBNL Spectrometer Solenoid Test Plan Workshop - 2/17/2012 - 9 -- 9 - Safety Considerations  Steve Virostek  LBNL Electrical Hazards Power supply rack being used will have open sides Power supply rack being used will have open sides Connections between power supplies and magnet should be made by qualified personnel Connections between power supplies and magnet should be made by qualified personnel Cryocooler compressors operate at high voltage (460 V) and power (11 kW) Cryocooler compressors operate at high voltage (460 V) and power (11 kW)