SE International, Inc. Radiation Alert

SE International, Inc. Radiation Alert Since 1979, RADIATION ALERT® instruments have proven ideal for a wide range of applications.

09/08/2026

☢️ Two critical readings. One powerful monitor.

The NUVIATech Instruments DolMo Dose and Dose Rate Monitor delivers simultaneous dose and dose rate readings for real-time radiation monitoring in a compact, rugged design.

Built for professionals who need reliable radiation awareness in demanding environments, DolMo is well suited for:

• Industrial applications
• First responders
• Homeland security
• Decommissioning

Stay informed. Stay prepared. Monitor with confidence.

👉 Learn more about the DolMo and see if it’s right for your application:
https://seintl.com/products/dolmo-dose-and-dose-rate-monitor/

🔬 Celebrating Frederik Soddy: A Pioneer of RadioactivityToday, we recognize Frederick Soddy (1877–1956), the Nobel Prize...
09/02/2026

🔬 Celebrating Frederik Soddy: A Pioneer of Radioactivity

Today, we recognize Frederick Soddy (1877–1956), the Nobel Prize-winning chemist whose groundbreaking work helped shape our understanding of radioactivity and isotopes.

Soddy’s research, including his work on radioactive transformations and the concept of isotopes, helped establish fundamental principles that continue to influence nuclear science and radiation technology today.

☢️ So, what does that mean for us?

As a manufacturer of radiation detection instruments, S.E. International builds on the scientific foundation pioneered by researchers like Soddy. From handheld survey meters and contamination monitors to scintillation detectors and radiation monitoring systems, our instruments help professionals detect, measure, and monitor radiation in the world around us.

More than a century after Soddy’s discoveries, the science continues to have an impact—from laboratories and healthcare to environmental monitoring, emergency response, and radiation safety.

We’re proud to be part of that continuing legacy of science, innovation, and radiation safety.

☢️ Radiation Detection in Action at the 2026 in Nashville!We’re showcasing advanced radiation detection solutions at th...
09/01/2026

☢️ Radiation Detection in Action at the 2026 in Nashville!

We’re showcasing advanced radiation detection solutions at the OAS Annual Meeting at the !

🔹 Radiation Alert® GammaView – A sensitive NaI scintillation detector designed for detecting low-level gamma radiation and identifying changes in radiation levels.
🔹 NuviaTech Instruments CoMo 170/300 – Simultaneously displays alpha contamination alongside beta/gamma measurements for faster, more efficient surface monitoring.
🔹 NuviaTech Instruments DolMo – Provides real-time dose and dose-rate readings in a compact, rugged instrument built for demanding environments.
🔹 NuviaTech Instruments NuClearance Radiation Portal Monitor – Designed for fast, continuous screening of vehicles and loads for radioactive materials, helping keep scrap metal operations moving safely and efficiently.

From nuclear and medical applications to industrial, emergency response, and decommissioning environments, our solutions are built to help professionals monitor with confidence.

For more info visit our new and improved products page: https://seintl.com/products/

We're here at the 2026 show in Nashville at the !It's so exciting to be here exhibiting in our home state. Sharing our ...
08/31/2026

We're here at the 2026 show in Nashville at the !

It's so exciting to be here exhibiting in our home state. Sharing our Radiation Alert product line along side NuviaTech Instruments' that we're now distributing in the U.S. is such a treat.

NEXT WEEK we'll be in Louisville for the 2026 Scrap Expo presented by Recycling Today !Come visit us at Booth #307 to c...
08/31/2026

NEXT WEEK we'll be in Louisville for the 2026 Scrap Expo presented by Recycling Today !

Come visit us at Booth #307 to connect with our team, learn more about radiation detection solutions for the scrap metal industry, including some of NUVIATech Instruments' state of the art products.

📍 Kentucky Exposition Center - Louisville, KY
📅 September 9–10, 2026
📌 Booth #307

Can't wait to see you there!

☢️ : The Gateman® — 1997Throwing it back to 1997, when S.E. International, Inc. was awarded a contract from the U.S. De...
08/28/2026

☢️ : The Gateman® — 1997

Throwing it back to 1997, when S.E. International, Inc. was awarded a contract from the U.S. Department of Defense to design and produce a radiation monitoring device utilizing a scintillation probe.

The result? The Gateman® — developed to support radiation monitoring at border crossings out of Russia, helping detect radioactive and nuclear materials that could be illegally transported across borders.

It was an important project that put S.E. International’s radiation detection expertise to work on an international security challenge. 🌎☢️

Nearly three decades later, we’re proud to look back at the technology, innovation, and history that helped shape S.E. International.

08/26/2026

Reliable Radiation Monitoring Starts Here. ☢️

When continuous radiation monitoring matters, you need equipment you can depend on.

S.E. International’s Radiation Alert® Area Monitors are designed to provide reliable, continuous monitoring for environments where radiation safety is a priority—from laboratories and healthcare facilities to industrial and research applications.

🔎 Explore our Area Monitor solutions and find the right fit for your application.

👉 Visit our new website to learn more.

NEXT WEEK! The is having their 2026 Annual Meeting at the Renaissance Nashville Hotel August 31st - September 3rd. If ...
08/24/2026

NEXT WEEK! The is having their 2026 Annual Meeting at the Renaissance Nashville Hotel August 31st - September 3rd. If you're in the area stop by and check out what our Radiation Alert® product line can do for you. Can't wait to see you there!

Questions? Check out our new & improved FAQ page for answers to more radiation detection questions: 👉https://seintl.com/...
08/21/2026

Questions? Check out our new & improved FAQ page for answers to more radiation detection questions: 👉https://seintl.com/faqs/

Q: How does a Geiger Mueller(GM) detector work?

A: 1. Radiation enters the GM tube
Radiation (alpha, beta, gamma, or X‑ray) enters a sealed tube filled with gas (usually argon or neon).
The tube has:
-A central wire (anode)
-A cylindrical outer wall (cathode)
-High voltage applied between them

2. Radiation ionizes the gas
When radiation passes through the tube:
-It knocks electrons off gas atoms
-This creates ions (charged particles)
-This process is called ionization

3. Avalanche effect (signal amplification)
The freed electrons are pulled toward the central wire because of the high voltage.
As they move:
-They collide with other atoms
-These collisions free even more electrons
-This creates a chain reaction (avalanche).

Result:
One radiation event → a large electrical pulse

4. Pulse is detected and counted
The detector electronics:
-Detect the pulse
-Count it as one event
-This is displayed as:
CPM (counts per minute)
CPS (counts per second)

5. Tube resets (quenching)
After each event:
-The tube temporarily becomes inactive
-It must reset before detecting the next event
-This is called dead time

🌍 World Humanitarian Day | August 19Today, we recognize the people around the world who put the safety, health, and well...
08/19/2026

🌍 World Humanitarian Day | August 19

Today, we recognize the people around the world who put the safety, health, and well-being of others first—often working in some of the most challenging environments imaginable.

At S.E. International, we believe reliable radiation detection is an important part of that mission. From emergency response and environmental monitoring to healthcare, research, and disaster preparedness, accurate radiation measurement helps professionals identify invisible hazards and make informed decisions that protect people and communities.

Our mission is simple: provide dependable radiation detection tools that help people stay informed, prepared, and safe. ☢️

On World Humanitarian Day, we’re proud to support those working every day to make the world a safer place.

Address

P. O. Box 39, 436 Farm Road
Summertown, TN
38483

Opening Hours

Monday 8:30am - 4:30pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8am - 5pm
Friday 9am - 5pm

Telephone

+19319643561

Website

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