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Presented to TEPRSSC October 1, 2003. Security Products that Use Ionizing Radiation. Goals. Update Committee on Emerging Issues about Security Products that use Ionizing Radiation Familiarize New Committee Members with these Products
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Presented to TEPRSSC October 1, 2003 Security Products that Use Ionizing Radiation
Goals • Update Committee on Emerging Issues about Security Products that use Ionizing Radiation • Familiarize New Committee Members with these Products • Discuss Progress of Previous Recommendations and New Projects • Committee Discussion to Support and Guide these Efforts
Topics • Cabinet X-ray Systems • Vehicle and Cargo Scanners • New Products • Personnel Security Screening Systems • FDA Projects • Relevant Web Links
Cabinet X-ray Systems Security Quality Control
Concerns About Security X-Ray • Airport x-ray systems now under Federal Jurisdiction • Worker concerns about exposure • Especially EDS Systems • NIOSH Study
Dose Effects from Airport Security Screening • No measurable effects • Food • Drugs • Electronics • Dose ranges from less than 1 mrem to approximately 120 mrem for EDS systems in worst case mode. • Film is the exception • Carry on screening usually film safe • EDS systems probably not film safe • Check film manufacturer website
Cargo and Vehicle Systems Fixed Position Truck Scanner Mobile Truck and Cargo Scanner
Truck Screening Image Image from Newsweek, taken at the border crossing from Guatemala to Mexico
Transportable Vehicle Systems Security System built into ISO containers which can be relocated
Vehicle Systems using Linear Accelerators Shaped Energy Accelerator System for Vehicles
Cargo, Vehicle, and Personnel Systems Backscatter X-ray System for Cargo, Locating threats in parked vehicles, and Possibly Screening of Pedestrians
Cargo and Vehicle Systems Isotope Based System for Scanning Trains – Regulated by NRC 6 MeV Mobile Accelerator for Scanning Cargo Containers
Cutting Edge and the Future • Backscatter X-Ray Van • Portals • Occupied Vehicles and Occupants • Pedestrians • High Energy Accelerators for Cargo Containers • Current maximum energy is ~ 6 MeV • Machine Produce Neutron Systems • Other Unpredicted Technology?
PFNA • Pulsed Fast Neutron Analysis • Reports by NCRP • Test Facility being constructed for cargo analysis • Mine detection
New ANSI Standard for Large Systems for Vehicles or Cargo • Systems being Rapidly Deployed • Cabinet X-ray Std. not necessarily appropriate • Worker Anxiety • Control Exposure from Predicted and Emerging Technologies – e.g. Portals
Non-medical Exposure to Ionizing Radiation • Use justified? • Societal benefit from increased security • Regulatory approach based on the Linear no threshold model
Backscatter X-Ray(Secure 1000) Manufactured by Rapiscan Products Inc.
Backscatter X-Ray(Bodysearch) Manufactured by American Science and Engineering, Inc.
Transmission X-Ray(Conpass Body Scanner) Manufactured by MMC International
FDA Projects • Published Consumer / Operator FAQ about Cabinet X-Ray to the Web • Participation in development of a Consensus Radiation Safety Standard appropriate for Cargo and Vehicle Systems • Drafted Internal Guide of Contacts for Other Agencies • Drafting Guidance Documents • Manufacturer Guide • Recommendations for Users • Drafting Proposed Mandatory Performance Standard for Personnel Screening Systems • NCRP report on the radiation risk of Personnel Screening Systems
Project Details (FAQ) • Cabinet X-Ray System Frequently Asked Questions • Other Common Names? • Agencies Regulating? • Is Proximity Safe? • Personnel Monitoring • Food and Other Products Safe after exposure?
Project Details (New Standards) • Cabinet X-Ray Standard not Appropriate • ANSI N43.3-1993, General Radiation Safety - Installations Using Non-Medical X-Ray and Sealed Gamma-Ray Sources, Energies up to 10 MeV – Not Sufficient • Product Proliferation and Need for Safe Use
Project Details(Guidance) • Internal Directory of Contacts for Outside Agencies – Drafted and in Management Review • Manufacturer Guidance (Personnel Scanners) – Drafted & Being Revised • Products Evaluated Individually • Basis for Regulatory Decisions • Support of the Use of N43.17-2002 Radiation Safety For Personnel Security Screening Systems Using X-Rays • History • Applicable FDA Regulations • Announcement of Drafting of Proposed Mandatory Standard • Guidance for Users (Personnel Scanners) – Planned • Use concepts in N43.17-2002 as the Basis • Record Keeping • User Training • Etc.
Project Details(Mandatory Standard) • Draft a Proposed Mandatory Radiation Safety Performance Standard for Personnel Scanners – Started • Based on Performance Aspects of N43.17-2002 • Effective Dose limit of 0.10 microSv • Labeling • Leakage • Test Method for Compliance Check • Etc. • FDA and TSA contracted NCRP to Write a Report on the Radiation Risk associated with the use of these systems – Report Completed and Delivered
Relevant Web Sites • FDA Electronic Product Radiation Control http://www.fda.gov/cdrh/comp/eprc.html • NCRP Report on Screening of Humans http://www.ncrp.com/SC%201-12-Final%20-7-11BW.pdf • Cabinet X-Ray FAQ http://www.fda.gov/cdrh/comp/cabinetxrayfaq.html • NIOSH – for worker concerns http://www.cdc.gov/niosh