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    • All Products
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    • Metal Recycling
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    • Emergency Response
    • Radiological Detection System
    • How To Order
    • Connector Types
  • Support
    • Service Center
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Training

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Product Videos
Filmstrip with video title cards for Ludlum Radiation Detectors, Model 26-1 Overview, How to Read an Analog Meter Dial, Model 19 Operating Instructions, and Model 3001-3RK Emergency Response Kit Overview

Product Videos

Ludlum Measurements has produced a number of videos to teach customers about our most popular products. The full list of videos can be found on the Product Videos page under the Support menu. They are also available through our YouTube channel. The individual videos can also be found on the corresponding product pages on our website.

We are continually developing and producing new videos. If you do not see a video for the product you are interested in, you can send your suggestions to .


Training Courses

Ludlum Measurements offers three instrument training courses: Calibration Training, Instrument Repair Training, and Radiation Detection Fundamentals. Course descriptions are shown below.

To register for a course, click on the Course Schedule tab, select the date you would like to attend, and click the register button.

  • Course Descriptions
  • Course Schedule
  • Locations
  • Course Descriptions
  • Course Schedule
  • Locations

Course Descriptions

 Calibration Training

A two-day training course covering the calibration of Ludlum instruments. Attendees will receive hands-on experience calibrating four generations of Ludlum instrumentation — the Model 3, the Model 2241, the Model 3000, and the Model 26-1. The class will also include a detailed introduction to Ludlum detectors and how to properly pair them with Ludlum instrumentation.

This course is intended for customers interested in performing their own calibrations. It is generally not intended for first-responders or survey technicians since it does not cover the health physics aspects of radiation surveying.

The course is held at Ludlum's main facility in Sweetwater, Texas and at Protean Instrument in Knoxville, Tennessee several times throughout the year. It is offered at no charge; however, attendees are responsible for their own lodging and meals.

This course is offered several times throughout the year. Scheduled classes are held Tuesdays & Wednesdays, and classes start at 8:30 AM each day. (see schedule)

Note: Prior health physics training is recommended.

Cost: Free

CEC: This course has been approved for 16 hours of continuing education credits by the ABHP (American Board of Health Physics), course lookup code 2025-11-06-557, valid through December 2028.

Calibration Training Course Outline

Calibration Training Course Outline

  1. Introduction
    1. What is calibration?
  2. Detectors
    1. Typical detector characteristics: efficiency, background, sensitivity, deadtime, and energy response
    2. Alpha and beta source characteristics
    3. GM Detectors
      1. Primary characteristics
      2. How GM detectors measure radiation
      3. Key performance factors:
        1. Efficiency
        2. Dead time
        3. Energy response
    4. Scintillator Detectors
      1. How a photomultiplier tube (PMT) functions
      2. Advantages and disadvantages
      3. Scintillator types and their applications
      4. Running a plateau - Determining operating voltage
    5. Gas Proportional Detectors
      1. Primary characteristics
      2. Advantages
    6. Ion Chambers
      1. Primary characteristics
      2. Advantages and disadvantages
    7. Neutron Detectors
      1. Ludlum neutron meters
      2. Primary characteristics
  3. Calibration Regulatory Requirements
  4. Model 3 Calibration
    1. Measuring and test equipment
      1. Model 500 Series Pulser
      2. Model 2200 Scaler
    2. How to read an analog meter dial
    3. Hands-on calibration
      1. Initial checks
      2. Determining input sensitivity
      3. CPM calibration
      4. Calibration with Model 44-2
  5. Model 2241 Series Calibration
    1. Calibration constant and deadtime correction
    2. Calibration setpoints
    3. CPM calibration
    4. Calibration with Model 44-2
  6. Model 3000 Series Calibration
    1. Lumic Calibration Software
      1. Pulser calibration
      2. Plateau wizard
      3. Detector calibration wizard
  7. Model 26-1 Calibration
    1. CPM/CPS calibration
    2. Calibration constant adjustment
    3. Dead time correction adjustment
    4. Linearity readings
    5. Alpha and beta sensitivities
  8. Facility Tour (LMI only)

 Instrument Repair Training

NEW - Instrument Repair Training Classes Now Offered in Sweetwater!

A two-day training course covering the electronics information necessary to repair hand-held radiation detection equipment. Designed for users who would like to make their own repairs, this course provides a review of electronic components and the different types of circuits found in radiation detection instrumentation, including examples from Ludlum meters.

The course is held at Ludlum's main facility in Sweetwater, Texas and at Protean Instrument in Knoxville, Tennessee several times throughout the year. The course fee includes lunch each day; attendees are responsible for all other travel and accommodation expenses.

This course is offered several times throughout the year. Scheduled classes are held Thursdays & Fridays, and classes start at 8:30 AM each day. (see schedule)

Note: A background in electronics is a prerequisite for this class to be useful to the participant. The student needs to understand the operation of an oscilloscope and digital multimeter.

Cost: $750 per attendee

CEC: This course has been approved for 16 hours of continuing education credits by the ABHP (American Board of Health Physics), course lookup code 2025-12-08-565, valid through December 2029.

Instrument Repair Training Course Outline

Instrument Repair Training Course Outline

  1. Introduction
    1. Course overview
  2. Requirements for performing repairs
    1. Special equipment and tools
  3. Overview of GM and scintillator detectors
  4. Component identification and operation
  5. Signal recognition
  6. Instrument Circuits – Theory of Operation and Troubleshooting
    1. Power supply circuit
    2. High voltage circuit
    3. Overload circuit
    4. Signal processing circuits
      1. Preamp circuit
      2. Discriminator circuit
      3. Range selection circuit
      4. Meter drive circuit
      5. Audio circuit
    5. CPU system control circuit
  7. Facility Tour (LMI only)

Radiation Detection Fundamentals New

A two-day course covering the practical use of Ludlum radiation detection instruments. Designed for operators, technicians, and safety personnel, this course focuses on building confidence in everyday use of radiation detection instruments, whether you are new to radiation detection or want to strengthen your understanding of how different detectors work.

Through guided labs and demonstrations, you will learn how to set up, operate, and interpret readings from Ludlum instruments. You will also learn the principles behind common detector types, how to troubleshoot typical challenges, and the real-world context for using the equipment in the field.

This course is hosted at Ludlum’s main facility in Sweetwater, Texas. It is offered at no charge; however, attendees are responsible for their own lodging and meals.

This course is offered several times throughout the year. Scheduled classes are held Tuesdays & Wednesdays, and classes start at 8:30 AM each day. (see schedule)

Cost: Free

CEC: This course has been approved for 16 hours of continuing education credits by the ABHP (American Board of Health Physics), course lookup code 2025-12-04-564, valid through December 2029.

Radiation Detection Fundamentals Course Outline

Radiation Detection Fundamentals Course Outline

  1. What is radiation?
    1. Sources of radiation
    2. Types of radiation
  2. Detectors
    1. Typical detector characteristics: efficiency, background, sensitivity, deadtime, and energy response
    2. Alpha and beta source characteristics
    3. GM Detectors
      1. Primary characteristics
      2. How GM detectors measure radiation
      3. Key performance factors:
        1. Efficiency
        2. Dead time
        3. Energy response
    4. Scintillator Detectors
      1. How a photomultiplier tube (PMT) functions
      2. Advantages and disadvantages
      3. Scintillator types and their applications
      4. Running a plateau - Determining operating voltage
    5. Gas Proportional Detectors
      1. Primary characteristics
      2. Advantages
    6. Ion Chambers
      1. Primary characteristics
      2. Advantages and disadvantages
    7. Neutron Detectors
      1. Ludlum neutron meters
      2. Primary characteristics
  3. Calibration
    1. Regulatory requirements
    2. Measuring and test equipment
      1. Model 500 Series Pulser
      2. Model 2200 Scaler
      3. Calibration range
    3. How to read an analog meter dial
  4. Model 2241 Series Survey Meters
    1. Description and functionality
  5. Model 3000 Series Survey Meters
    1. Description and functionality
    2. Comparison of Model 3000 Series instruments vs analog and legacy digital equivalents
    3. Lumic software and Lumic Linker app
  6. Hands-on Labs
    1. Finding a radiation source
    2. Frisking personnel
      1. Model 26 Series
  7. Facility Tour

Ludlum Measurements Facility Tour

All classes in Sweetwater include a Ludlum Measurements facility tour. Attendees have the opportunity to get an inside look at our manufacturing plant, where Ludlum has engineered and built radiation detection equipment since the 1960s. The tour also includes visiting our military-grade testing facilities to see how instruments are evaluated for durability, accuracy, and field readiness.

Course Schedule

Calibration Training

Calibration Training

Sweetwater, TX Dates

Calibration Training
Feb 10, 2026 - Feb 11, 2026
Ludlum Measurements (Sweetwater, TX)
Class Full
Calibration Training
Jun 09, 2026 - Jun 10, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 11
Calibration Training
Dec 08, 2026 - Dec 09, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 12

Knoxville, TN Dates

Calibration Training
Jan 13, 2026 - Jan 14, 2026
Protean Instrument (Knoxville, TN)
Class Full
Calibration Training
Mar 10, 2026 - Mar 11, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 5
Calibration Training
May 12, 2026 - May 13, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 3
Calibration Training
Jul 14, 2026 - Jul 15, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 8
Calibration Training
Sep 08, 2026 - Sep 09, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 8
Calibration Training
Nov 10, 2026 - Nov 11, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 8
Instrument Repair Training

Instrument Repair Training

Sweetwater, TX Dates

Instrument Repair Training
Feb 12, 2026 - Feb 13, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 8
Instrument Repair Training
Jun 11, 2026 - Jun 12, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 11
Instrument Repair Training
Dec 10, 2026 - Dec 11, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 12

Knoxville, TN Dates

Instrument Repair Training
Jan 15, 2026 - Jan 16, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 1
Instrument Repair Training
May 14, 2026 - May 15, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 6
Instrument Repair Training
Nov 12, 2026 - Nov 13, 2026
Protean Instrument (Knoxville, TN)
Spots Available: 8
Radiation Detection Fundamentals

Radiation Detection Fundamentals

Radiation Detection Fundamentals
Apr 07, 2026 - Apr 08, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 7
Radiation Detection Fundamentals
Aug 11, 2026 - Aug 12, 2026
Ludlum Measurements (Sweetwater, TX)
Spots Available: 15

Locations

Ludlum Measurements, Inc. - Sweetwater, Texas

Course Calibration Training
Duration 2 days
Time Scheduled classes are held Tuesdays & Wednesdays
Classes start at 8:30 AM each day
See schedule
Cost Free (attendee is responsible for travel & accommodation)
Classes are filled on a first come, first served basis
Registration Click on the Course Schedule tab, select the date you would like to attend, and click the register button
Location Ludlum Measurements, Inc.
Training Building
409 Oak Street
Sweetwater, Texas
Contact Information Email: 
Phone (Toll Free): 800-622-0828
Phone: 325-235-5494
Travel & Lodging
Information
Directions to Ludlum MeasurementsRestaurants & Lodging

Protean Instrument - Knoxville, Tennessee

Course Calibration Training
Instrument Repair Training
Duration 2 days 2 days
Time Scheduled classes are held Tuesdays & Wednesdays
Classes start at 8:30 AM each day
See schedule
See schedule
Cost Free (attendee is responsible for travel & accommodation)
Classes are filled on a first come, first served basis
$750 per attendee
Includes lunch each day (attendee is responsible for other travel & accommodation costs)
Registration Forms Click on the Course Schedule tab, select the date you would like to attend, and click the register button
Location Protean Instrument
10744 Dutchtown Road
Knoxville, Tennessee
Contact Information Email: 
Phone (Toll Free): 888-707-1795
Phone: 865-392-4600

Ludlum Measurements, Inc.
501 Oak Street
Sweetwater, TX 79556
USA

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