Whole body imagers are systems used for security screening that can detect contraband items concealed under a person's clothing. They work by sensing and creating an image of the person and any concealed objects using various technologies like backscatter X-rays, terahertz waves, or passive millimeter waves. Whole body imagers allow authorities to screen people at checkpoints to deter the passage of weapons, drugs, or other prohibited items without physical contact or radiation exposure. The Brijot Gen 2 system is a portable whole body imager that uses passive millimeter waves to automatically detect concealed objects in a non-intrusive manner and alert operators.

1. Basics of Whole Body Imaging - Security People Screening To Detect and Deter

4. Why and When is People Screening employed? What is really happening is a vetting process. The basic premise is that an authority wants to control what is coming in or going out. Persons are asked to pass through a checkpoint where they must divest, remove all items from their person and present for inspection. The technology ensures compliance that ALL items are revealed. TSA – Ensure that weapons or items that could be used as weapons or in a destructive manner are not brought into airside sterile area. Loss Prevention – Ensure that items of value do not leave a facility or warehouse. Court Security Officers – Ensure that weapons and other unauthorized or nuisance item are not brought into a court room. Example Cell Phone – Nuisance if it rings in court, Cameras and Cell Phone cameras – Unauthorized photography of litigants and witnesses. Uniformed Enforcement (Customs, Police, Corrections) – Body packers of Drugs, Contraband Material or Large Amounts of Cash.

6. Create an Image? Use fields or various methods? Backscatter X-Ray – Systems that operate by sensing energy in the X-Ray portion of the electromagnetic spectrum. These are active systems but as opposed to traditional medical x-ray systems the energy is low power and the energy does not penetrate the subject but senses the energy that comes back from the target. Terahertz – Systems that operate by sensing energy in the Terahertz portion of the electromagnetic spectrum. I am only aware of a Passive commercially available system. Millimeter Wave - Systems that operate by sensing energy in the Millimeter Wavelength portion of the electromagnetic spectrum. There are both Active and Passive systems commercially available. Whole Body Imagers Passive System – A system that produces images by sensing the ambient environmental energy. Our eyes are passive devices and so are CCTV cameras. External sources of illumination produce the light that is then reflected back into the device. The device transmits no energy as illumination for the target. Active Systems – Systems that transmit energy as illumination for the target. Energy that is reflected back and captured and used by the device to produce the image.

8. Passive? Just Looking at what? Where Does Millimeter Wave Energy Come From? Short Version - All matter in the universe emits electromagnetic energy (Radio Waves). The properties of these emissions vary with the Temperature Density and the Molecular composition of the matter. Passive Millimeter Wave systems look at the world and sees the Millimeter Wave energy emitted by people. Thermal Imagers as we’ve seen on TV Cop shows, “sees” the world at night just as clearly as during the day. They look at the world and see the IR, Infra-Red energy emitted by objects and especially people.

9. The Electromagnetic Spectrum Visible Spectrum Millimeter Waves

10. Passive Millimeter Wave System Operation MMW Aperture We are the Transmitter. The energy passes right through our clothing. The GEN 2 System is the Receiver. This system senses energy in the Millimeter Wave area of the spectrum and produces a grayscale image. Humans appear as Hot (brighter pixels) compared to the Colder (darker pixels) of the background.

11. Some Examples Concealed Gun Concealed Body Pack of Simulated Drugs? Objects block our energy and we see them in silhouette. Currently, our technology as well as that of other commercially available technology cannot identify the objects but can confirm their presence.

12. Automated Detection Assist Engine Alerts the operator to the presence of an object.

16. Real World Results – Customs Application Typical Selective Screening Setup Actual Field Detection

17. Questions? Want more information? WWW.BRIJOT.COM Michael Strong Manager - System Sales Engineering Brijot Imaging Systems, Inc. 1064 Greenwood Blvd. Suite 124 Lake Mary, Florida 32746 Main: +1-407-641-4370 Direct: +1-407-641-4382 Cell: +1-321-947-4461 Toll Free: +1-866-SAFERWORLD (723-3796) Fax: +1-407-351-9455 Email: MStrong@Brijot.com