Ludlum Measurements, Inc.  Ludlum Model 54A

  Small Article Radiation Monitor

 

 Introduction

 

Ludlum Model 54A Small Article Radiation Monitor

●  Small Article Radiation Monitor with 1.6 ft3 Interior Volume

●  True 4∏ Counting Geometry for Optimized Homogenous Efficiency

●  QPASS Counting Technology for Shorter Counting Cycles

●  Color LCD with Touch Screen Interface

●  USB Port for Printer-Free Operation and Calibration

●  User-selectable Operating Modes

●  Auto Calibration Routine

●  Several Configurations Available

●  Larger Version Available - Model 54

 

Automated, routine radiation contamination frisker type instruments like Ludlum’s Model 54A Small Article Monitor is a well-proven methodology for ensuring that items leaving controlled areas are clean. Ludlum’s new Model 54A is a smaller version of the Model 54 and incorporates identical field-proven algorithms and features. The 1.6 cubic foot (45.3 L) volume of the Model 54A offers greater convenience for monitoring smaller articles. Central to the design is the detector chamber, which is configured to deliver an optimized detection volume for articles that fit within the chamber. Thick 2 in. (5 cm) plastic scintillator detectors are specially designed and arranged to optimize the sensitivity throughout the chamber. A stainless steel liner protects the detectors while facilitating decontamination. The chamber can be configured with either four or six detectors, and either 1 or 2 in. (2.5 or 5.1 cm) of lead. The lead is shipped separately and easily loaded on site.

 

Ludlum Model 54A Small Article Radiation Monitor

The Model 54A is equipped with a single door, which can be mounted with either a left- or right-hand swing. Hardened steel hinges, securely bolted to the instrument frame, employ ball-bearings to make operating the doors as easy as possible. Very powerful, non-jamming, electromagnet-activated door locks are employed to keep the door locked until the count is completed or until an alarm is cleared depending upon the set-up. Ludlum’s new QPASS algorithms provide a means whereby administrators can optimize the settings best suited for their operations. QPASS additionally surpasses all other technologies via built-in intelligence that can automatically optimize settings as the count begins to deliver the most efficient and effective count possible. It’s a perfect balance between minimum count time and maximum sensitivity that affords eliminating a second count to verify any alarms.

Ludlum Model 54 Small Article Radiation Monitor Alarm ScreenOperational status and instrument condition is clearly presented to the operator via a 7 in. (17.8 cm) LCD touch screen. The software displays are designed to be very intuitive and are accompanied by a large-size pushbutton to activate sample counting. There are also two smaller pushbuttons for updating the background or acknowledging any alarms. The main counting screen is locked with password-controlled access via the touch screen. From the main screen, the user can perform either routine check functions at one level or access all parameters at a second level. The electronics support the latest Ludlum detector boards, which are connected to a PC-based fan-less embedded computer running on Embedded Windows™ XP platform. The system also provides an ethernet port that enables connection to the site LAN for collecting all count and alarm data as well as monitoring all activities remotely from one or more locations. When taken in total, the Ludlum Model 54A Small Article Monitor delivers state-of-the-art technology in a robust design with enhanced performance, user-friendliness, and connectivity at the lowest cost on the market.

 

 Specifications

 

PART NUMBER: 48-3792

CHAMBER:

Internal Dimensions: 14 x 14 x 14 in. (35.6 x 35.6 x 35.6 cm) (H x W x L)

Detection Volume: 1.6 ft³ (45 L)

Liner Material: stainless steel

DETECTORS:

Four or six detector configurations available

Scintillator: EJ-200 plastic

Size: 13 x 13 x 2 in. (33 x 33 x 5.1 cm) (H x W x L)

DOORS:

Reversible door swing

Door hinges are heavy duty rated, incorporating ball bearings for smooth operation

Door locks to control door operation

ELECTRONICS:

Embedded PC running Embedded Windows™ XP
Display: 7.0 in. (17.8 cm) (diagonal) TFT LCD, SVGA, touch screen
User Pushbutton Controls: Start/Stop Count, Background Update, Alarm Acknowledgement. All other control functions are available via the LCD touch screen. Password protection employed.
I/O: Alarm & access control relays, USB ports, TCP/IP

MECHANICAL:

Dimensions: 37 x 27.0 x 31.5 in. (94 x 68.6 x 80.0 cm) (H x W x D)

Weight:

0 in. (0 cm) of Lead: approximately 700 lb (318 kg)

1 in. (2.5 cm) of Lead: approximately 1700 lb (771 kg)

2 in. (5.1 cm) of Lead: approximately 2750 lb (1247 kg)

Lead is shipped separately and installed on site

ENVIRONMENTAL:

Temperature: 32–122 °F (0–50 °C)

Maximum Humidity: 95% non-condensing

COUNTING:

Three alarm modes to maximize throughput, sensitivity, or fix the count time. Alarms available for sum channels, sum zones, and individual detectors. Automatic background updating. Contaminated detector checking, false alarm control. Logs each use, operational test, and calibration.

PERFORMANCE:

Detects 2.2 nCi mixed 60Co/137Cs source in less than 5 seconds

 

 Configurations

 

4 detectors, 2 doors, 1 in. (2.5 cm) lead shielding - Part Number 48-3728

4 detectors, 2 doors, 2 in. (5.1 cm) lead shielding - Part Number 48-3727

6 detectors, 2 doors, 1 in. (2.5 cm) lead shielding - Part Number 48-3726

6 detectors, 2 doors, 2 in. (5.1 cm) lead shielding - Part Number 48-3263

 

 Options & Accessories

 

Model 54 Small Article Radiation Monitor Stand

Model 54 Small Article Radiation Monitor Light Stack

Ludlum Model 54 Small Article Radiation Monitor Second LCD Monitor

 

Weight Scale

Part Number

0.25 µCi Cs-137 Radiation Check Source

Stand (16 in.)

Part Number

4540-213

Stand Drawing

Light Stack

Part Number

4540-209

 

Second LCD Monitor

Part Number

4540-210

4540-127

Check Source

 

 Technical Information

 

Data Sheet

Product Manual

Calibration and Testing Procedure

M54-1 Calibration Testing Worksheet for Customers Worksheet

Supervisor Software Installation Package

 

 Ludlum Resources

 

About Ludlum

Product Catalogs & Price Lists

Standard & Extended Warranty

Software Downloads

Replacement Parts

Repair & Calibration

Training