Nuclear Medicine / Monitoring Systems

Model 375/1

Digital Area Monitor

• Detector Type: Internal 18 mm CsI Detector
• Linear Range: 0.1 to 9999 µR/hr

Model 375/2

Digital Area Monitor

• Detector Type: Internal Energy Compensated GM
• Linear Range: 1.0 µSv/h to 10 mSv/h (0.1 mR/hr to 1.0 R/hr)

Model 375/4

Digital Area Monitor

• Detector Type: Internal Energy Compensated GM
• Linear Range: 10 µSv/h to 100 mSv/h (1.0 mR/hr to 10 R/hr)

Model 375-9

Gamma Area Monitor

• Detector Type: External Model 45-9 Ion Chamber
• Linear Range: Any 4 Consecutive Decades Between 0.1 mR/hr to 100 R/hr

Model 375-10

Digital Area Monitor

• Detector Type: Internal NaI Scintillator 5.1 x 5.1 cm (2.0 x 2.0 in.) 
• Linear Range: 0.1 to 20 µSv/h (1 to 2000 µR/hr)

Model 375-31H

Area Monitor with Neutron Detector

• Digital Area Monitor
• ³He Proportional Detector
• Moderator: 22.9 cm (9.0 in.) dia.
• Sensitivity: 10,000 cpm per mSv/h (100 cpm per mrem/jr)
• Range: 0 to 100 mSv/h (0 to 10 rem/hr)

Model 52

Portable Portal Monitor

• Beta-Gamma Portal Monitor
• Inside Width: 81.3 cm (32 in.)
• Side & Foot GM Detectors
• Portable

Model 52-1, 52-5 & 52-6 Series

Portable Portal Monitors

• Beta-Gamma Portal Monitor
• Inside Width: 61 cm (24 in.) or 81.3 cm (32 in.)
• Plastic Scintillator Detectors
• Portable

Model 52-8 Series

Outdoor Portal Monitor

• Beta-Gamma Portal Monitor
• Plastic Scintillator Detectors
• Weatherproof
• Portable

Model 53

Gamma Personnel Portal Monitor

• Inside Width: 61 cm (24 in.)
• Plastic Scintillator Detectors
• Lead Shielding

Model 375-20

Monitoring System

• Two 5.1 x 5.1 cm (2 x 2 in.) (Dia x L) NaI(Tl) Scintillator Detectors
• Lead Shielding
• Indoor/Outdoor Use

Model 375-30 Monitoring System

The Model 375-30 is a digital Model 375 Controller coupled to two shielded 7.6 cm (3 in.) diameter by 2.5 cm (1 in.) thick NaI(Tl) scintillation detectors. The detectors are encased in NEMA 4X rated weathertight enclosures suitable for the outdoor environment, but the 375 Controller is normally mounted to a wall indoors near an operator. This cost-effective system is simple, making it easy to operate and maintain. The controller supplies local alarms but can also be connected to external alarms or  put onto an Ethernet network if desired. It additionally has a 48-hour battery backup to keep the system operational in the event power is lost. See Model 375 for additional detail and available options.

Model 375P-336 Series

Monitoring System

• Two 2753 cm³ (168 in³) Plastic Scintillator Detectors
• Range: 0 to 9999 kcps
• Indoor or Outdoor Use Depending on Model

Model 375P-1000

Outdoor Monitoring System

• Two 7866 cm³ (480 in³) Plastic Scintillator Detectors
• Range: 0 to 9999 kcps
• Outdoor Use

Model 375P-2000

Outdoor Monitoring System

• Four 7866 cm³ (480 in³) Plastic Scintillator Detectors
• Outdoor Use

Model 239-1F Series

Alpha-Beta Floor Contamination Monitor

• Alpha-Beta-Gamma Gas Proportional Detector
• Active Window Area: 584 cm² (90.5 in²)
• Adjustable Detector Height

Model 3002/FM Series

Alpha-Beta Floor Monitor

• Alpha-Beta Scintillation Detectors
• Active Window Area: 400 or 1080 cm² (62 or 167.4 in²)
• 22.4, 40.9, or 65.7 cm (8.8, 16.1, or 25.9 in.) Wide Detection Path
• Adjustable Detector Height

Model 240 Series

Alpha-Beta Floor and Wall Monitor

• 12 Alpha-Beta Detector Array
• 173 cm (68 in.) Wide Detection Path
• Floor and Wall Monitoring

Model 54

Small Article Monitor

• Chamber (H x W x L): 50.8 x 50.8 x 50.8 cm (20 x 20 x 20 in.)
• 2 Doors

Model 54A

Small Article Monitor

• Chamber (H x W x L): 35.6 x 35.6 x 35.6 cm (14 x 14 x 14 in.)
• 1 Door

Model 54R Series

Retrofit Option for Small Article Monitor

• Retrofit Existing Small Article Monitor with Model 54 Functionality

Model HWM-21

Small Article Monitor

• Retrofit Existing Small Article Monitor with Model 54 Functionality

Model HWM-65

Small Article Monitor

• Chamber (H x W x L): 400 x 400 x 400 mm (15.75 x 15.75 x 15.75 in.)
• 2 Doors

Model HWM-100

Free Release Monitor

• Chamber (H x W x L): 460 x 460 x 460 mm (18.1 x 18.1 x 18.1 in.)
• 2 Doors

Model HWM-180

Release Monitor

• Chamber (H x W x L): 600 x 550 x 550 mm (23.6 x 21.7 x 21.7 in.)
• 2 Doors

Model HWM-300

Free Release Monitor

• Chamber (H x W x L): 600 x 600 x 860 mm (23.6 x 23.6 x 33.9 in.)
• 1 Door (2 Door Option)

Model HWM-400

Free Release Chamber

• Chamber (H x W x L): 900 x 700 x 750 mm (35.4 x 27.6 x 29.5 in.)
• 1 Door (2 Door Option)

Model HWM-400S

Free Release Chamber

• Chamber (H x W x L): 900 x 700 x 750 mm (35.4 x 27.6 x 29.5 in.)
• 1 Door (2 Door Option)
• Manual Conveyor

Model HWM-550

Free Release Monitor

• Chamber (H x W x L): 1,100 x 700 x 700 mm (43.3 x 27.6 x 27.6 in.)
• 1 Door (2 Door Option)
• Electric Conveyor

Model HWM-1800

Free Release Chamber

• Chamber (H x W x L): 1,210 x 1,120 x 1,380 mm (47.6 x 44.1 x 54.3 in.)
• 1 Door (2 Door Option)
• Electric Conveyor

Model HWM-1800C

Free Release Chamber

• Chamber (H x W x L): 1,210 x 1,120 x 1,380 mm (47.6 x 44.1 x 54.3 in.)
• 1 Door (2 Door Option)
• Electric Conveyor
• Integrated in Shipping Container

Model 334A Alpha Air Monitor

The Model 334A is a compact, lightweight, and portable alpha air monitor designed to function both as a workplace monitor and a Continuous Air Monitor (CAM) for measurements in emergency response situations. Its functionality is enhanced by its splash- and dust-proof enclosure with splash-proof electronics.

Model 334AB Alpha-Beta Air Monitor

The Model 334AB is a lightweight, battery-powered, alpha-beta air monitor that can be used as a portable workplace monitor or a portable CAM (continuous air monitor) for emergency-response assessments. It is designed to provide workers with an early warning of an airborne release of alpha and beta emitting particulates. The instrument can monitor up to two alpha isotopes of interest, simultaneously with beta monitoring. It also has radon compensation and a built-in gamma guard detector to compensate for changing ambient gamma background levels.

Model 3101 Portable Tritium in Air Monitor

The Model 3101 Tritium in Air Monitor features ruggedized and flexible operation. It is powered by rechargeable internal NiMH batteries and/or an external +12 Vdc power supply. It features a maintenance-free diaphragm air pump to pull air through the 250 cc tritium chamber, and the air flow is measured internally with a mass-air flow sensor. A second 250 cc chamber is used to provide gamma compensation, allowing operation in higher gamma fields. Other internal sensors measure temperature and ambient pressure and provide compensation for these effects.

Model 3100 Portable Tritium in Air Monitor

The Model 3100 Tritium in Air Monitor features ruggedized and flexible operation.

Model 215 Alpha Frisker Station CE Label

Ludlum Model 215 is a unique dual-purpose alpha contamination detection system that can be used as both a stationary detector and a mobile frisker. When alongside a glovebox, the operator can use this innovative device as a stationary hand frisker, then simply remove it from the charging stand for use as any other mobile alpha frisker.

Model 3276HFM Low Cost Hand & Foot Monitor

The Model 3276 is a versatile instrument that can be used for multiple radiation detection or measurement purposes. In this configuration, the Model 3276 is connected to both a Model 44-25 hand monitor detector and Model 44-26 foot monitor detector to monitor personnel for alpha, beta, and gamma contamination. An optional Model 44-9 detector can also be included for frisking.

Model 3277HFM Compact Alpha-Beta Hand & Foot Monitor

The Model 3277HFM Hand & Foot Monitor is intended for checking low-level alpha and beta contamination on personnel. The gasless system incorporates two scintillation detectors, one for the hand and one for the foot. An optional frisker scintillation detector can be included as well.

Model 4901P Beta-Gamma Hand & Foot Monitor

The Model 4901P Beta-Gamma Hand & Foot Monitor is intended for use as a medium-level beta and gamma contamination monitor. Four count channels are in the standard configuration for monitoring the palm of each hand and the sole of each foot. The Model 4901P employs a total of twenty-two pancake Geiger-Mueller (GM) type detectors, five in each hand detector (palm side only) and six in each foot detector. LED indicators show status and alarm location. The Model 4901P allows parameter updating by viewing the built-in, 16-character LCD display. Detector counts, background, alarm set points, and all parameters may be viewed on the LCD display. Switches at each hand detector initiate an interrogation (both switches must activate). Audible alarm and status change indications are standard.

Model 4906A Alpha Hand & Foot Monitor

The Model 4906A is an industrial-duty, low-cost, alpha-only contamination monitoring system for the hands and shoes of personnel. System status and areas of possible contamination are presented in a large color LCD making the process simple and user-friendly.

Model 4906AB Alpha-Beta Hand & Foot Monitor

The Model 4906AB is a low cost, industrial duty, alpha and beta contamination monitoring system for checking personnel hands and feet. A large color LCD presents users with the system status and points out any potential contamination in an easy-to-use manner.

Model 4906P Alpha-Beta-Gamma Hand & Foot Monitor

The Model 4906A is an industrial-duty, low-cost, alpha-only contamination monitoring system for the hands and shoes of personnel.

Model HFC-8 Hand, Foot, and Clothing Monitor

The HFC-8 is a compact hand, foot, and clothing monitor to measure personnel leaving controlled areas. Robust, with a removable probe and spring-loaded hand detectors, the Model HFC-8 is designed for portability between different areas. Featuring a detector arrangement to measure the hands and feet in one measurement step, the Model HFC-8 integrates the latest technology and design, while meeting industry and regulatory standards.

Model 177HFM Low Cost Hand & Foot Monitor

This setup offers a low-cost alpha/beta/gamma contamination monitoring system for checking hands and feet.

Model HBP-22 Body Contamination Monitor

The Model HBP-22 is a body contamination monitor that utilizes beta plastic detectors to measure personnel as a pre-monitor. Robust, with a modern design that integrates the latest available industrial technology, the system is optimized for users of all sizes.

Model HBP-29 Body Contamination Monitor

Model 4525 Series Radiation Portal Monitors

These systems are composed of ruggedized, large plastic scintillation detectors optimally arranged to monitor items passing through.

Vehicle Monitor Retrofits

Ludlum Measurements offers the option to retrofit existing vehicle 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.

Model 52-8 Series

Outdoor Portal Monitor

• Beta-Gamma Portal Monitor
• Plastic Scintillator Detectors
• Weatherproof
• Portable

Model 4525 Series Radiation Portal Monitors

These systems are composed of ruggedized, large plastic scintillation detectors optimally arranged to monitor items passing through.

Model 375P-3500 Conveyor Monitor CE Label

Protecting steel mills against entry of loose radiation sources that can potentially contaminate them requires diligent attention. Failure can cost millions in fines and clean-up expenses. Ludlum's conveyor monitor offers added assurance by inserting a second line of defense.

Model 375P-1000

Outdoor Monitoring System

• Two 7866 cm³ (480 in³) Plastic Scintillator Detectors
• Range: 0 to 9999 kcps
• Outdoor Use

Model 375-600 Digital Area Monitor for Small Areas

Model 375P-2000

Outdoor Monitoring System

• Four 7866 cm³ (480 in³) Plastic Scintillator Detectors
• Outdoor Use