Today

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Todays Special Presentation
Safety for Super Heroes Industrial X-Ray
Safety Regulatory Update
FeaturingTim Donakowski,Health Physicist,MN
Department of Health
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Industrial X-Ray Safety Regulatory Update

• January 8, 2008
• Annual ASSE/AIHA Combined Meeting

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Industrial X-RaySecurity Example 1

• Airport cabinet baggage system
• Needed scatter phantom during inspection
• Used water container
• Immediately stopped by security
• Appeared like a dangerous liquid

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Industrial X-RaySecurity Example 2

• Infant carriers through baggage x-ray
• Exposure is less than 0.1 mR, but NOT NECESSARY!
• Infants should be carried through security

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• New rule
• Administrative requirements
• General requirements
• Cabinet and gauge users
• Radiographers
• Additional information.

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Minnesota Department of Health Rule Chapter 4732

• Effective November 5, 2007
• Harmonizes x-ray machine and radioactive
  materials requirements

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Administrative Requirements

• Biennial registration replaced with annual
• Service providers must now be registered

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General Requirements

• All registrants now required to
• Designate a radiation safety officer
• Maintain doses ALARA
• Review their programs annually.

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General Requirements, cont.

• Quarterly dose limit of 1.25 rem replaced with
  annual limit of 5.0 rem
• Dosimetry threshold lowered from 25 to 10 of
  annual limit
• Lifetime dose limit dropped
• Dose reporting extended to annual instead of
  quarterly.

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General Requirements, cont.

• Training requirement relaxed
• Initial training still required for new workers
• Periodic re-training not required unless worker
  is likely to receive more than 100 mrem/y and the
  program or equipment changes.

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General Requirements, cont.

• Survey instrument calibration interval increased
  from 12 to 24 months.

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Cabinet Gauge Users(Non-Radiographers)

• Follow Chapter 4732.1040
• Relaxes quarterly safety checks and annual
  surveys by requiring that manufacturers
  recommendations be followed.

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Radiographers

• Must be certified after February 3, 2008
• New or modified vaults (lead-lined rooms) must
  have shielding plans reviewed
• Vault doors must have interlocks checked monthly
  (was quarterly in previous rule).

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Radiographers, cont.

• Training requirements are more prescribed
• Must include radiation fundamentals, radiation
  detection, registrants equipment, Chapter 4732
  and case histories of radiography accidents
• Site-specific exam.

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Radiographers, cont.

• Two-person rule at temporary jobsites
• Must take and follow SOP while in the field.

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Questions/Additional Information

• MDH issues monthly new bulletins and occasional
  information notices
• http//www.health.state.mn.us/divs/eh/radiation/xr
  ay/4732info.html
• Timothy.Donakowski_at_health.state.mn.us