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Irradiator Security Gate

Y-12 National Security Complex

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PDF Document PublicationIrradiator Security Gate Fact Sheet (432 KB)

Technology Marketing Summary

Panoramic irradiators are commonly used to disinfect and sterilize products, such as medical supplies, cosmetic raw materials, food, food containers, and medical supplies. The irradiators typically use Cobalt 60 as a source of radiation-- a material that could potentially be used to build a "dirty bomb." As a result, the Nuclear Regulatory Commission (NRC) requires installation of a security system for each irradiator; however, current electronic security systems have a short life-span due to the fact that the radiation source must be stored in a pool of water. Irradiator Security Gate is a mechanical security sensor that uses pneumatic or hydraulic piping. The remotely located electronic pressure sensor detects any tampering that can result in change of internal pressure.

  • Reliable, mechanical security features can be located underwater.
  • Meets NRC regulations.
  • Adaptable to fit almost any environment where security and durability are a concern, especially in extreme conditions, such as high radiation areas.
  • Electronic components are located remotely from the security system, providing a greater reliability and a longer life cycle.
  • Cost-effective and durable.
  • Can operate in high radiation environments.
Applications and Industries
  • Security gate for high radiation areas where electronics will be damaged.
  • Security for large diameter underwater or above-water drain lines without stopping the flow.
  • Security for large diameter intake lines without affecting the flow.
More Information

Inventor: Lee Bzorgi

Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Patent 8,850,868
Apparatus for safeguarding a radiological source
A tamper detector is provided for safeguarding a radiological source that is moved into and out of a storage location through an access porthole for storage and use. The radiological source is presumed to have an associated shipping container approved by the U.S. Nuclear Regulatory Commission for transporting the radiological source. The tamper detector typically includes a network of sealed tubing that spans at least a portion of the access porthole. There is an opening in the network of sealed tubing that is large enough for passage therethrough of the radiological source and small enough to prevent passage therethrough of the associated shipping cask. Generally a gas source connector is provided for establishing a gas pressure in the network of sealed tubing, and a pressure drop sensor is provided for detecting a drop in the gas pressure below a preset value.
Y-12 National Security Complex 10/07/2014
Technology Status
Development StageAvailabilityPublishedLast Updated

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