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Assay and Acquisition of Radiopure Materials

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faarm:betai [2009/12/01 09:32] – priscafaarm:betai [2009/12/22 13:02] (current) – removed ben
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-====== Sensitive Alpha/Beta Counting Stations ====== 
- 
-  - Description/Name: Surface Beta Counting Station at the 4850-ft level 
-  - Planned use (be specific):  
-     - Primary function: Materials screening to determine amount, type, and position of radioactive surface contaminants 
-     - Temporary and permanent storage: storage of materials to be screened and calibration samples in clean, radon-free environment, storage of gas consumables for detectors 
-     - Sample and detector handling: Clean room with class 10,000, liquid nitrogen, load/lock system, sample preparation including assay materials  
-     - Jigs, fixtures, scaffolds, etc. necessary: Jigs for sample preparation; lifting system to open and close the shielding around the counting stations.  Lab fixtures: light-duty; power, lights, laboratory casework, communications (phone/computer), standard wall coverings, 10 kW of clean power (UPS?), air monitoring for certain gases 
-     - E & O activities: daily (emergency 24/7); Utilities: air, water, heat/cooling, light, communications, commercial drains, chemical drain/disposal path, liquid nitrogen, humidity control; Radon free air; Temperature; humidity control. 
-  - Occupancy: 
-     - Steady: Two people 
-     - Peak: Ten people 
-  - Adjacencies (list/distance): 
-  - Space size (gsf and/or WxLxH):20 m x 30 m x 4 m   ????? 
-  - Experiment Systems: low background drift chambers and DAQ system  
-  - Shielding: Very stout floor for shield; Copper, lead, water walls 
-  - 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. 
-  - Material handling (cranes, etc.) Movable crane/floor rail for heavy item movement 
-  - Finishes (walls/floor/ceiling):) Class 10,000 clean standard 
-  - Casework: 
-  - Storage: purge cabinets; LN2 
-  - 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).  
-  - Mechanical: 
-     - Environmental conditions: Radon reduced air, temperature and humility control 
-     - Clean class: 10,000 
-     - Ventilation: ~100 cfm 
-     - Exhaust: ~ 100 cfm 
-     - Plumbing (domestic, waste, systems): water, heating/cooling 
-     - Fire Suppression: 
-     - Building Management System:  
-     - Fume hoods: 1 (4x5ft^2=20ft^2) 
-     - Chilled water: not needed 
-     - Other:  
- 
-  - Electrical: 
-     - Power (clean and dirty): clean 10 kW, dirty 5 kW 
-     - Lighting: 
-     - Low Voltage/Data/Communication: 100baseT or better ethernet 
-     - Fire Detection/Alarm: 
-     - Other:  
-  - Acoustical: 
-  - Vibration Isolation: 
-  - EMI/RFI Isolation: 
-  - Hazardous materials: 
-  - Special Consideration (expansion, etc.): 
  
faarm/betai.1259681565.txt.gz · Last modified: 2009/12/01 09:32 by prisca

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