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School of Physics & Astronomy
Assay and Acquisition of Radiopure Materials

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engineering:faarm:gammai

Gamma Counting Stations

  1. Description/Name: Gamma-Ray Counting Station at the 4850-ft level
  2. Planned use (be specific):
    1. Primary function: Materials screening
    2. Temporary and permanent storage: *Separated sample storage rooms for screening and for keeping
    3. Sample and detector handling: *Clean room with class 10,000, liquid nitrogen, sample preparation including assay materials, fume hoods
    4. Jigs, fixtures, scaffolds, etc. necessary: Jigs for sample preparation; Lab fixtures: standard lab requirements aand air monitoring for certain gases
    5. E & O activities: daily (emergency 24/7); Training students
  3. Occupancy:
    1. Steady: Two people
    2. Peak: Ten people
  4. Adjacencies (list/distance):
  5. Space size (gsf and/or WxLxH): 4 m x 6 m x 4 m
  6. Experiment Systems: Germanium low background detectors and DAQ system
  7. Shielding: Very stout floor for shield; Copper, lead, poly bricks, water walls
  8. Floor load (PSF): (Pb ~12 g/cm3) a 1-m high shield would be 1,200 g/cm2 or about 2400 lbs/ft2. Round up for safety ~ 1.5 tons/ft2.
  9. Material handling (cranes, etc.) Movable crane/floor rail for heavy item movement
  10. Finishes (walls/floor/ceiling):) Class 10,000 clean standard
  11. Casework:
  12. Storage: purge cabinets; LN2
  13. Furniture/Fixtures/Equipment (non-experiment): chemical storage cabinets, storage cabinets, etching tanks and rinse tanks for cleaning lead, a)Glove box (ea 3x3ft^2=9ft^2: 9ft^2); b)Assembly Table: 4 (ea 5 x 5 ft^2 = 25 ft^2: 100 ft^2) (with test equipments, can be combined to form single larger assembly support tables); c) Chairs: 4 (ea 3 x 3 ft^2 = 9 ft^2: 32 ft^2); d)Electronics Racks: 1 (3 x 2 ft^2 = 6 ft^2: 6 ft^2); e)Parts Storage Cabinets: 4 (4 x 2 ft^2 = 8 ft^2: 64ft^2); Chemical storage cabinets 4 (4 x 2 ft^2 = 8 ft^2: 64ft^2).
  1. Mechanical:
    1. Environmental conditions: Radon reduced air, temperature and humility control
    2. Clean class: 10,000
    3. Ventilation: ~100 cfm
    4. Exhaust: ~ 100 cfm
    5. Plumbing (domestic, waste, systems): water, heating/cooling
    6. Fire Suppression:
    7. Building Management System: Preparation room for changing PPE and keeping the note books
    8. Fume hoods: 1 (ea 4x5ft^2=20ft^2: 20ft^2) - hoods, storage cabinets, etching tanks and rinse tanks for cleaning lead, glove box
    9. Chilled water
    10. Other:
  2. Electrical:
    1. Power (clean and dirty): clean 15 kw
    2. Lighting: room lights
    3. Low Voltage/Data/Communication:
    4. Fire Detection/Alarm:
    5. Other:
  3. Acoustical:
  4. Vibration Isolation:
  5. EMI/RFI Isolation:
  6. Hazardous materials: General waste disposal: 1 hazardous chemical disposal: 1 lead contaminated ppe disposal: OSHA compliant layout
  7. Special Consideration (expansion, etc.):
engineering/faarm/gammai.txt · Last modified: 2009/12/22 13:01 by ben

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