Related:
ALARA
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Contact:
Environmental Health
  and Safety
714 W. Lombard Street
Baltimore, MD 21201
410-706-7055
Fax 410-706-8212

Physical Data:

Pure Beta Emitter

Radiological:

• 0% of beta particle energy transmitted through dead layer of skin
• Critical organ:  body water or tissue
• Internal exposure through ingestion, inhalation, or adsorption are primary concerns

Shielding:

• None required

Survey Instrumentation:

• Liquid Scintillation Counter (LSC)
  • LS window 0 to 400
  • LS efficiency 65%

Regulatory Compliance:

Special Considerations:
Tritium, because of its low beta energy, cannot be monitored directly and therefore special care is needed to keep the working environment clean.  Regular monitoring by counting swipes is recommended in areas where Tritium is used.