What could dark matter be?

When Chris Olsen isn't working in the Main Control Room, he's attending to one of his many hobbies, including old photography. Photo: Reidar Hahn

When Chris Olsen isn’t working in the Main Control Room, he’s attending to one of his many hobbies, including old photography. Photo: Reidar Hahn

How long have you been at Fermilab?

Almost 16 years.

What path led you here?

I have a degree in history. After working a couple of years outside of the lab — at a hardware store, as a prototyping machinist, driving a school bus — I decided I wanted to do something else. I’d worked at the campus particle accelerator lab all four years of college and had built a couple particle accelerators at home. I brought my own cyclotron to my interview here. I think they hired me to keep an eye on me.

What is your typical day here like?

Operators run the machines to provide beam as needed to the experiments. It’s a very catchall job. If anything goes wrong, we’re the first line of defense. At the beginning of a shift, we meet with the off-going crew chief and read a logbook for instructions. Then we go into the control room to get more specific information for whatever machine we’re taking over. Then we’ll sit there, answer phones and tune the machines. If something trips off we’ll either go and fix it or see if one of the techs can fix it.

What’s the most exciting part of your job?

I enjoy the interaction with people from all over. And I enjoy talking to tours. I got to speak with the remaining crew of the Enola Gay when they came through. As a historian, that was amazing. I also enjoy going out in the field to fix stuff. My forte is hardware.

You recently had some photographs in an employee art show. Can you tell me about your photography?

I’m a student of 19th-century photography. I do daguerreotypes and wet plate collodion, which are the two first photographic processes that were commercially successful. Being an operator gives me the very special privilege of taking my camera equipment into the accelerator complex and using this 150-year-old process to take pictures of it. I also do backstage concert photography and take pictures of Civil War reenactors. I used to do my own 18th-century reenactment, so I give these pictures to the Civil War reenactors as gifts.

Is there anything people might not know about you?

My friends call me the man of a thousand hobbies. I build medieval crossbows. I teach woodworking and blacksmithing at Four Winds Waldorf School. My kids go there. I have a hundred-year-old sock knitting machine that I make socks with. I’m restoring a 1923 Model T. Working here has actually allowed me to do all this. Talking with colleagues has expanded my creativity and artistic side.

Hyde Park Herald, Nov. 18, 2015: Mayor Rahm Emanuel and University of Chicago President Robert Zimmer kicked off an event titled “The University of Chicago and Affiliated Laboratories: Powerful Partners in Transformative Science” on Friday, Nov. 13, by pointing to the continued prominence of the university as a national leader is scientific developments.

Scientists have made the first-ever calculation of a prediction involving the decay of certain matter and antimatter particles.

From Physics, Nov. 23, 2015: The mass of the recently discovered Higgs particle is one of the greatest mysteries in present-day particle physics. While much larger than the mass of most known elementary particles, it is far smaller than other energy scales. Within our current understanding of quantum mechanics and relativity, this disparity is puzzling and is referred to as the hierarchy or naturalness problem. One popular explanation is provided by a hypothesized new symmetry of nature, supersymmetry.

The universe’s oldest light hasn’t made a pit stop for 13.82 billion years—beginning its journey just 380,000 years after the big bang. That light, the so-called cosmic microwave background (CMB), serves as a familiar hunting ground for astronomers who seek to understand the universe in its infancy.