After watching a Netflix series about the 2011 Fukushima Daiichi nuclear disaster in Japan, 16-year-old Olivia found herself asking the same question many viewers had after seeing a graphic scene of a person bleeding from his eyes.
“Oh my gosh, did that really happen?”
She knew someone who knew the answer: her dad, Dan Sowers.
He was deployed off the coast of Japan on USS Ronald Reagan following the accident, and did extensive work on radiation exposure assessments for US servicemembers. Also, he notes, he did quite a bit of risk communication.
Sowers is a Certified Health Physicist (CHP) and now the global radiation protection senior manager at Westinghouse Electric Company.
So instead of relying on Google, Chat, or trying to piece things together herself, Olivia would watch an episode, pause it, then call her dad over to see if what she was watching really happened the way they showed it.
In the case of the bleeding eyes man, “Not exactly,” Sowers said.
Then, he explained what actually happened.
That back-and-forth—watching, questioning and explaining—started as casual fact-checking about this docuseries and another they watched later, about the 1987 radiological accident in Goiânia, Brazil. Together, the two series led to conversations that were less about correcting every dramatic detail and more about working through how radiation is calculated and how to communicate that exposure during a crisis.
What follows is a closer look at those conversations: the questions asked, how they were answered, what the two dramas left out and why having a CHP in the writers’ room can help make sure these stories are told and understood accurately.
Is That What Really Happened?
Some parts of the two programs clearly hit home.
The Goiânia accident raised questions about how people can come across something so dangerous without a clear warning. From a modern perspective, it feels almost implausible. We expect serious hazards to come with visible signs of risk. But in this case, none were present. The material didn’t look threatening. It was unusual, yes, but also fascinating. A faint blue glow that caught people’s eye.
The Fukushima disaster raised different questions, more about scale, less about discovery. How severe was the exposure risk to nearby residents, and how much came from radiation versus the chaos naturally caused by the earthquake and tsunami? This incident had multiple emergencies happening at once: aftershocks, evacuations and infrastructure failure. Radiation was part of an overlapping crisis.
For Olivia, the shows sparked immediate, emotional responses. Each program portrayed radiation as an invisible force, either harmless or instantly lethal. It’s a common dramatization used to heighten tension.
But Sowers says that’s not how radiation really works.
Radiation risk is not all-or-nothing. It depends on a combination of factors: dose, duration, distance, shielding, even exposure pathway. These are variables CHPs work with every day. They don’t easily translate into dramatic storytelling, but they’re essential for understanding what is happening in a radiological situation.
How CHPs Calculate Exposure
As Olivia continued watching, her questions began shifting.
At first, she wanted to know if the events were accurately portrayed. Soon, those questions became more analytical. How is radiation measured? What do those numbers mean? How much is too much? What counts as a low dose, and what counts as a dangerous one?
“I kept asking my dad how they actually quantify radiation,” she said. “What do those numbers represent, and what does it mean when they say someone received a certain dose?”
Those conversations led to a deeper understanding of dose: what it is, how it’s calculated and how various levels of exposure affect the human body. Instead of seeing radiation as a vague, threatening concept, Olivia began to see it as something that could be quantified, studied and explained.
That shift is at the heart of what CHPs do.
CHPs measure and evaluate radiation, then explain what it means in practical terms. Across nuclear power, medicine, research and emergency response, they turn complex science into decisions people can act on.
They assess exposure, set safety protocols and make sure radiation is managed safely. They rely on data, models and established guidelines to protect workers and the public.
Putting Radiation into Perspective
CHPs also communicate radiation exposure clearly.
Radiation is uniquely challenging because it cannot be seen, smelled or felt. That makes radiation hard to grasp and easy to fear. Without context, small exposures can seem alarming, while real risks may go unnoticed.
Sowers made this abstract more concrete by helping Olivia put the numbers in perspective by comparing them to familiar benchmarks. This is a fundamental CHP skill: translating technical information in a way that neither overstates nor understates risk.
Sowers emphasizes that CHPs sit at the intersection of psychology, communication and risk perception. “Addressing them is part of the job,” he says. “Accurate information matters, but only if it connects with how people think and feel. Clear communication that acknowledges concern and provides context builds trust.”
And, he adds, often relief.
For those considering a career as a CHP, Sowers says this is where the profession stands out.
“It’s not just about working with radiation and understanding it, but helping others understand it, too, whether it’s during an emergency, in a workplace, in medicine or simply answering a question sparked by something your kid sees on a screen,” he says.
How to Turn Curiosity into a CHP Career
This father-daughter moment highlights a broader opportunity for CHPs and health physics.
Multi-episode Netflix programs like “The Days,” the Japanese thriller dramatizing the Fukushima disaster, and “Radioactive Emergency,” the other miniseries based on the Goiânia incident, are great at sparking new curiosity about radiation. But without guidance, these impressions can be incomplete or misleading.
“Shows like this can even create questions about whether the viewer wants to be a health physicist,” Sowers says.
With the right direction, this interest can become a thriving career in health physics.
Because, based on Hollywood adaptations, the need for clear, credible voices is obvious, not just at home, but in the script room.
“Whether in professional settings or in everyday conversations, CHPs help us and the public make sense of complex information,” Sowers says.
CHPs can also accurately answer the one question Olivia asked most: “Did that really happen like that?”
If you’re interested in becoming a certified health physicist like Sowers, learn more about certification and how to begin your career today.