When NASA’s next generation human spaceflight vehicle Orion blasts off on its maiden unmanned test flight later this year, a radiation experiment designed by top American high school students will soar along and play a key role in investigating how best to safeguard the health of America’s future astronauts as they venture farther into deep space than ever before – past the Moon to Asteroids, Mars and Beyond!
The student designed radiation experiment was the centerpiece of a year-long Exploration Design Challenge (EDC) competition sponsored by NASA, Orion prime contractor Lockheed Martin and the National Institute of Aerospace, and was open to high school teams across the US.
The winning experiment design came from a five-member team of High School students from the Governor’s School for Science and Technology in Hampton, Va. and was announced by NASA Administrator Charles Bolden at the opening of the 2014 U.S.A Science and Engineering Festival held in Washington, DC on April 25.
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The goal of the EDC competition was to build and test designs for shields to minimize radiation exposure and damaging human health effects inside NASA’s new Orion spacecraft slated to launch into orbit during the Exploration Flight Test-1 (EFT-1) pathfinding mission in December 2014. See experiment design photo herein.
During the EFT-1 flight, Orion will fly through the dense radiation field that surrounds the Earth in a protective shell of electrically charged ions – known as the Van Allen Belt – that begins 600 miles above Earth.
No humans have flown through the Van Allen Belt in more than 40 years since the Apollo era.
Team ARES from Hampton VA was chosen from a group of five finalist teams announced in March 2014.
“This is a great day for Team ARES – you have done a remarkable job,” said NASA Administrator Bolden.
“I really want to congratulate all of our finalists. You are outstanding examples of the power of American innovation. Your passion for discovery and the creative ideas you have brought forward have made us think and have helped us take a fresh look at a very challenging problem on our path to Mars.”
Since Orion EFT-1 will climb to an altitude of some 3,600 miles, the mission offers scientists the opportunity to understand how to mitigate the level of radiation exposure experienced by the astronaut crews who will be propelled to deep space destinations beginning at the end of this decade.
The student teams used a simulation tool named OLTARIS, the On- Line Tool for the Assessment of Radiation in Space, used by NASA scientists and engineers to study the effects of space radiation on shielding materials, electronics, and biological systems.
Working with mentors from NASA and Lockheed Martin, each team built prototypes and used the OLTARIS program to calculate how effective their designs – using several materials at varying thicknesses – were at shielding against radiation in the lower Van Allen belt.
“The experiment is a Tesseract Design—slightly less structurally sound than a sphere, as the stresses are located away from the cube on the phalanges. The materials and the distribution of the materials inside the tesseract were determined through research and simulation using the OLTARIS program,” Lockheed Martin spokeswoman Allison Rakes told me.
The students conducted research to determine which materials were most effective at radiation shielding to protect a dosimeter housed inside – an instrument used for measuring radiation exposure.
“The final material choices and thicknesses are (from outermost to innermost): Tantalum (.0762 cm/ .030 in), Tin (.1016 cm/ .040 in), Zirconium (.0762 cm/ .030 in), Aluminum (.0762 cm/ .030 in), and Polyethylene (9.398 cm/ 3.70 in),” according to Rakes.
At the conclusion of the EFT-1 flight, the students will use the measurement to determine how well their design protected the dosimeter.
But first Team ARES needs to get their winning proposal ready for flight. They will work with a NASA and Lockheed Martin spacecraft integration team to have the experimental design approved, assembled and installed into Orion’s crew module.
All the students hard work will pay off this December when Lockheed Martin hosts Team ARES at the Kennedy Space Center in Florida to witness the liftoff of their important experiment inside Orion atop the mammoth triple barreled Delta IV Heavy booster.
46 teams from across the country submitted engineering experiment proposals to the EDC aimed at stimulating students to work on a science, technology, engineering and math (STEM) project that tackles one of the most significant dangers of human space flight — radiation exposure.
“The Exploration Design Challenge has already reached 127,000 students worldwide – engaging them in real-world engineering challenges and igniting their imaginations about the endless possibilities of space discovery,” said Lockheed Martin Chairman, President and CEO Marillyn Hewson.
The two-orbit, four- hour EFT-1 flight will lift the Orion spacecraft and its attached second stage to an orbital altitude of 3,600 miles, about 15 times higher than the International Space Station (ISS) – and farther than any human spacecraft has journeyed in 40 years.
Stay tuned here for Ken’s continuing Orion, Orbital Sciences, SpaceX, commercial space, LADEE, Curiosity, Mars rover, MAVEN, MOM and more planetary and human spaceflight news.
4 Replies to “Student Designed Radiation Experiment Chosen to Soar aboard Orion EFT-1 Test Flight In Dec. 2014”
Exponential advancement of scientific knowledge.
One suggestion is that due to Wheeler contractions and explosions have the effect of “reprocessing” / “restore” the Cosmos.
What this means is that each new cycle is kind of a “new adventure” where the natural conditions are shuffled aleatoriamente.No attempts to explain how this can happen, but happen, the universe could explore all possibilities after a sufficient number of cycles (which, of course, would be an astronomically large number).
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Why did it take almost 50 years and high school students(really?) to figure a way to shield man from the dreaded VAB? We have a wealth of information on them from the Apollo missions. Or do we? If we made it to the moon safely 6 times with no astronauts experiencing any type of ill effects from radiation why has it taken so long to attempt it again?
Because this craft is designed to go farther than Apollo, including interplanetary missions. And Apollo astronauts DID receive quite considerable doses of radiation, and AFAIK some developed illnesses later in their lives that could be connected to that. Nothing lethal (in the short term, at least) though.
The US DID go to the moon, more than six times, and I wonder what you are doing on a site like this, if you think it was all a hoax.
Apollo went over the radiation belt, never went through the dangerous part, this one goes through the radiating belt in the dens part.
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