UITF Meeting - May 10, 2016

UITF Internal Safety Review – Personnel Safety

List of Hazards

Gun System:

1. High Voltage (350 KV)
2. Pressure Vessel containing SF6 (60 PSI)
3. SF6

Laser System:

1. Class 4 laser at 780 and 1560 nm

Vacuum Systems:

1. Pumps (Is there a need for hearing protection?)
2. Beam line terminations (flanges capped off?)

Electrical and Magnets Systems

1. Ion pumps
2. Magnet terminals
3. Magnetic fields

Cryogenic fluids

1. Liquid Helium to ¼ cryomodule
2. 500 L and 1000 L liquid Helium for HDIce
3. Nitrogen gas line

Non-ionizing Radiation

1. Warm RF (Buncher and Chopper systems)
2. High Power RF to ¼ cryomodule

Define operational modes

1. Low energy operations (restricted to Cave 1, beam current 32 mA, beam energy <250KV, or 3mA at <400kV)
2. High energy operations (for HD-Ice, beam current , < 100nA, PSS BCMs)
3. Maintenance, no beam

Ionizing Radiation

1. Due to beam during UITF operation, or field emission from ¼ CM and gun
2. Residual radiation after turning off the beam

Access Controls

1. Levels of Access (Restricted/Beam Permit)
2. Sweep procedures (prior to beam operations)
3. Access control procedures post-beam operations
4. CARMs
5. BCMs (<100 nA into Cave 2)

Signage

1. ODH posting
2. HV
3. Laser
4. Magnetic fields (if higher than 5 G, about 1 ft from the magnet)
5. Beacons, if needed (maybe at the gate when beam in UITF)
6. Beacons above the cave (restrict access when RF/Beam on)

Matt Poelker UITF introduction media:UITF overview_Poelker_final.pptx

Henry Robertson PSS and ODH system media: Safety System Group Overview_final.pdf

Vashek Vylet: Radiation Shielding media:UITF shielding assessment.pptx

Hari Areti ODH summary media:ODH_Areti presentation_v2.pptx, media:draft ODH assessment.docx

John Hansknecht Laser Safety media:UITF Laser Safety.pptx

DILO SF6 cart manual media:DILO manual.pdf

SF6 information media:SF6 info.pdf

media:Poelker notes from UITF internal safety review.docx