The Model 4525 Series of Radiation Portal Monitors (RPMs) represents state-of-the-art technology for detecting low levels of radiation, such as orphan radiation sources and NORM (naturally occurring radioactive materials), at facilities including scrap yards, recycling companies, landfills, and foundries. These systems are composed of ruggedized, large plastic scintillation detectors optimally arranged to monitor items passing through. Each system can be configured with two to six large detectors, with individual detector volumes of 9.8 L (600 in3), 41 L (2500 in3), or 57 L (3500 in3).
Real-time data acquisition and analysis is performed directly at each detector system and then reported to a central PC for logging, reporting, and alarm notification. Up to four detector systems (lanes) can be networked together via Ethernet or wirelessly to a central PC so that vehicles entering from either direction can be monitored in real time. An optional remote control/annunciator panel is available to support operator awareness, alarm acknowledgement, and if necessary, backup operation in the event the central PC is unavailable.
Data from all the system sensors are acquired and checked by powerful, field-tested, and time-proven algorithms designed to check each load vigorously in a multi-dimensional and multi-layered manner before declaring any load as clean. Any abnormality is immediately indicated via both local and remote alarms. An optional camera system can capture an image of the offending vehicle and store the image with the logged data for permanent record keeping. Alarms can also be configured to automatically notify shift supervisors directly by e-mail if desired.
The system is designed for ease of use and can be customized to accommodate a wide variety of site and application specific criteria. Intuitive menus and controls combined with pre-defined automatic event handlers ensure each situation is handled properly and consistently.
All of the main components of these systems are manufactured in-house in the USA.
LMI has Model 4525 Series systems installed worldwide. Click here to view a map of the Model 4525 installations.
Ludlum Measurements offers the option to retrofit existing portal monitor systems with the electronics and software used in our Model 4525-Series Vehicle Monitors, including systems manufactured by our competitors. Retrofitting allows you to upgrade an aging system without having to purchase new detector housings and stands. Besides our own systems, Ludlum has experience retrofitting systems manufactured by Exploranium, RadComm, SAIC, Mirion/Canberra, and Thermo. Retrofits are customized to your needs, and can also include replacing the plastic scintillator detectors if necessary. Please contact us with your requirements.
Ludlum offers several different RPM systems. Each 4525 Series model number suffix reflects the approximate total cubic inches of scintillation material used by the combined system.
Model 4525-2400PN: 48-3908
Detectors: 4Total Detector Volume: 39 L (2400 in3)
Model 4525-5000PN: 48-4018
Detectors: 2Total Detector Volume: 82 L (5000 in3)
Model 4525-7500PN: 48-4020
Detectors: 3Total Detector Volume: 123 L (7500 in3)
Model 4525-10000PN: 48-4019
Detectors: 4Total Detector Volume: 164 L (10000 in3)
Model 4525-12500PN: 48-4021
Detectors: 5Total Detector Volume: 205 L (12500 in3)
Model 4525-15000PN: 48-4022
Detectors: 6Total Detector Volume: 246 L (15000 in3)
Model 4525-7000PN: 48-3605
Detectors: 2Total Detector Volume: 115 L (7000 in3)
Model 4525-10500PN: 48-3606
Detectors: 3Total Detector Volume: 172 L (10500 in3)
Model 4525-14000PN: 48-3607
Detectors: 4Total Detector Volume: 229 L (14000 in3)
Model 4525-17500PN: 48-3608
Detectors: 5Total Detector Volume: 287 L (17500 in3)
Model 4525-21000PN: 48-3609
Detectors: 6Total Detector Volume: 344 L (21000 in3)
The base Model 4525 Series system includes vehicle monitoring software for the system control computer that can be used to monitor up to four separate Model 4525 Series configured systems (lanes) via an Ethernet or wireless connection. The software automatically collects and archives data from all available lanes, displays alarms, and generates reports. When equipped with optional cameras, the system can be configured to automatically capture images of vehicles passing through the system, either every vehicle or only those triggering an alarm, and store the images in the database.
The vehicle monitoring software has three main component programs:
Ludlum’s reporting feature accumulates the data, and sends you an easy-to-read report on a regular basis (weekly, monthly, or quarterly) about the activity during that time frame.
Reports include:
When you receive these reports on a regular basis, it’s easy to see when something changes, or when you need to address a training or hardware problem. You determine how often to get these reports, and you can also choose to have Ludlum technicians review the data for an additional fee.
(click images to view larger)
Remote Annunciator Panel
Strobe and Horn
Wireless System
Bullet Camera
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