Wednesday, May 21, 2008

Nomad Handheld Xray Machine Is Safe

We use a Nomad in my office and for those who still maybe concerned about scatter radiation here is a study to look at.

Radiation Safety for the NOMAD™ Portable X-Ray System in a Temporary Morgue Setting*

Kenneth P. Hermsen D.D.S., M.S., Stanley S. Jaeger M.S., Mackenzie A. Jaeger (2008)
Radiation Safety for the NOMAD™ Portable X-Ray System in a Temporary Morgue Setting*
doi:10.1111/j.1556-4029.2008.00766.x

abstract: The purpose of this study was to determine the radiation levels resulting from leakage and scatter encountered by the forensic dental personnel using the Nomad™ at St. Gabriel, LA, following Hurricane Katrina. Using a Keithley Radiation Survey Meter and Lucite head phantom, radiation levels were measured at various distances and angles from the Nomad™ corresponding to the positions occupied by the dental personnel at St. Gabriel. The measurements were used to approximate the maximum total radiation dose from the Nomad to each team member for a 2- and a 4-week deployment. The results show that the maximum scatter radiation dose to any team member was 4.4 μR per X-ray or 0.253 millisieverts (mSv) for a 2-week deployment and 0.506 mSv for a 4-week deployment. Therefore, the leakage and scatter radiation dose from the Nomad™ was insignificant compared with established radiation safety guidelines of 50 mSv per year for all team members.

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