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 Automatically screen moving trains orlarge vehicles for radioactive materials.
Portal Monitor for Trains or Large Vehicles
Continuously Screen Moving Cargo
High Throughput
Cost Effective
The TSA TM85O automatically screens railroad or vehicular traffic without the need for frequent calibration. High sensitivity allows the TM85O to be used at transportation hubs requiring a wider installation area and high throughput such as at ports and customs and border entry points. The TM85O is designed for use in harsh environmental conditions.
Advanced Design Features
The TSA TM85O is a train and large vehicle monitor with excellent sensitivity and reliability. The TM85O consists of two self-contained, weather resistant pillars placed on either side of the railroad track or roadway to be monitored. Each pillar contains two large plastic scintillator detectors, four neutron detector blocks with either two or four neutron detectors each, multiple occupancy sensors, and an amplifier. The master pillar also has a battery, power supply, battery charger, and a system controller. Programmable Detection Parameters Selectable settings for sensitivity, energy discrimination, and fault levels maybe entered by the administrator.
Easy-to-Operate
When the system is powered up, it takes 120 seconds to acquire an initial background. The background is continually updated until the system is occupied. When the TM85O senses occupancy, the system starts comparing the current count to the most recent background data. Alarm comparisons are made every 200ms. If the count exceeds the alarm level, both audible and visual alarms will be triggered. The system monitors itself and indicates low and high background conditions.
Flexible Detection Options
The TSA TM85O is available in three configurations; Gamma, Neutron or a combination of Gamma and Neutron detection. Gamma provides detection of ionizing radiation and Neutron provides detection of Special Nuclear Materials (SNM) while the combined Gamma and Neutron provides the most powerful detection capabilities for radioactive isotopes even in shielded materials.
Interface Options
With the optional Remote Alarm Panel operators can view alarms up to 300m from the monitor. The TSA TM85O is compatible with TSA RAVEN” communications software designed to both capture and view data and video images relating to a radiological detection incident.
Specifications
| Sensitivity |
Gamma: Will detect 200 grams of 235U (HEU) or 3 grams of 73‘-9Pu in a 20 uR/hr background at a passage speed of 5 mph (8km/h).
Neutron: Will detect greater than 200 grams of plutonium in a shielded container that reduces the gamma flux to 1% of the unshielded gamma flux. |
| Detectors |
Standard Gamma and Neutron: Two, 48 h x 12 w x 1.5 d in. (121.9 x 30 X 3.8 cm) organic plastic scintillator detectors per pillar; four, 2 in. diameter X 36 in. (5 X 91.4 cm) He3 tubes per pillar.
High Sensitivity Gamma and Neutron: Two, 48 h x 12 w x 1.5 d in. (121.9 x 30 x 3.8 cm) organic plastic scintillator detectors per pillar; eight, 2 in. diameter x 36 in. (5 x 91.4 cm) He3 tubes per pillar. |
| False Alarm Rates |
Typically less than 1 in 1,000 passages |
| Alarm Indication |
Alarms are indicated by a red strobe light mounted on the master pillar. High and low faults along with other fault conditions are indicated by an amber light. Neutron alarm is indicated by a blue strobe light. |
| Display |
LCD, 4 lines X 20 characters |
| Communications |
Serial Port and Ethernet communications capability |
| Power Requirements |
90 — 250 Vac. 47 — 63 Hz, less than 100 VA |
| Battery Life |
Greater than 8 hours of normal operation |
| Dimensions |
120 h X 48 w X 10 d in. (305 x 122 X 25.4 cm) |
| Typical Pillar Spacing |
236.2 in. (6 m) |
| Weight |
1,100 lbs (499 kg) per pillar |
| Environmental |
—4° to 122° F (—20° to 50° C) Designed for outdoor use in most climates. For extreme conditions, optional heating/cooling is available. |
*For neutron detection please contact your sales representative to determine availabilty and quantity of He3 tubes.
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