Simple and inexpensive, compared to costly imaging systems, ETD can be used alone as the primary means of explosives detection or in combination with other detection technologies for alarm resolution, handling overflow, and relieving bottlenecks during peak periods of screening activity.
Explosives are organic in nature and emit microscopic particles that transfer easily between people and objects that have come in physical contact with an explosive substance. Capable of detecting explosives at the nanogram (one billionth of a gram) level, ETD instruments can detect explosives where other methods fail, particularly those that rely on visual detection. Detecting trace amounts on a box or container's surface may indicate the presence of hidden, larger amounts.
Fast, Efficient and User-friendly
Trace is fast and easy. A few swipes of a box or container's outside surface with a sampling swab or "trap" yields results in seconds, alerting screeners to the presence of a threat substance. Simple non-invasive screening protocols assure rapid throughput, while helping to prevent damage to screened items.
The benefits of ETD use compared to other TSA approved screening methods:
|Explosives Trace Detection (ETD)||Advanced Technology X-ray||Explosives Detection Systems (EDS)||Explosives Detecting Canines||Physical Search w/Manifest Verification|
Lowest cost investment
Identifies suspect substances
Easy "go / no-go" operation
Small size and portable
Moderate investment cost
Limited package size scanning
Fixed position scanning
Heavy initial investment
Expensive maintenance contract
Requires a dog handler
Limited period of interest
No substance identification
Time consuming and labor intensive
Invasive, higher risk of damage
Susceptible to human error