Skip to Content
MIT News magazine

Jay A. Stein, PhD ’68

X-ray pioneer improves security, women’s health
August 25, 2010

Fascinated with space, Jay A. Stein pursued physics at Brown and space studies in MIT’s physics department, where he delved into x-ray astronomy. But when it came time to find a job, he applied his expertise to more earthly endeavors, at American Science and Engineering (AS&E). Frequent hijackings between the United States and Cuba in the late 1960s had led to heightened airport security, and Stein’s task was to build one of the country’s first baggage inspection scanners. He received a patent for his flying-spot scanner, the first of dozens that he would hold on devices involving x-ray technology.

The majority of his inventions are breakthrough medical devices. “I was always interested in the medical field on the side of doing some good,” Stein says. First he focused on improving the CT scanner: he led the charge to build the fourth generation of the device, which had less potential for errors than earlier versions and is still in use today.

Stein then teamed up with an AS&E colleague to form three companies. The first two, later sold, focused on medical x-ray angiography and a system to detect explosives in baggage. The third, Hologic, where he is chairman emeritus and chief technical officer, created the first x-ray bone densitometer (which measures bone density and tracks bone loss) and the first digital mammography machine. In 2007, Hologic acquired Cytyc, a company that provides gynecological diagnostic screening and therapeutics. That move made Hologic one of the country’s largest companies focusing on women’s health. Within a couple of years, Hologic expects FDA approval of its latest invention, a 3-D mammography machine already used in Europe and Canada. The device will detect more cancers and provide a clearer image, especially in dense tissue, so that fewer women will need to be called back for another scan.

Stein, who’s a generous donor to the Institute, credits MIT with helping him analyze customer requests in a way that doesn’t just solve immediate concerns but improves entire systems. “MIT taught me to think of the fundamentals of a problem and not just the details,” he says.

He lives in Boston with his wife, Gretchen, and has three children, two stepchildren, and six grandkids. “I wanted all my children to go to MIT,” he says. His son Peter did, earning an MBA from Sloan in 1998. Now Stein is looking to the next generation: “I’m going to get my grandchildren to go to MIT.”

Keep Reading

Most Popular

wet market selling fish
wet market selling fish

This scientist now believes covid started in Wuhan’s wet market. Here’s why.

How a veteran virologist found fresh evidence to back up the theory that covid jumped from animals to humans in a notorious Chinese market—rather than emerged from a lab leak.

light and shadow on floor
light and shadow on floor

How Facebook and Google fund global misinformation

The tech giants are paying millions of dollars to the operators of clickbait pages, bankrolling the deterioration of information ecosystems around the world.

masked travellers at Heathrow airport
masked travellers at Heathrow airport

We still don’t know enough about the omicron variant to panic

The variant has caused alarm and immediate border shutdowns—but we still don't know how it will respond to vaccines.

This new startup has built a record-breaking 256-qubit quantum computer

QuEra Computing, launched by physicists at Harvard and MIT, is trying a different quantum approach to tackle impossibly hard computational tasks.

Stay connected

Illustration by Rose WongIllustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.