In a New York Times story, Betsy was one of several scientists explaining why radiation would be a major complication on a human mission to Mars. Betsy was demonstrating the set up used to hit single cells with heavy ions, simulating cosmic rays. When asked about the importance of delivery rate to the damage caused, Betsy replied: "If a cell is hit once, there is no rate. Once is once."
In a New York Times story, Betsy was one of several scientists explaining why radiation would be a major complication on a human mission to Mars.
Betsy demonstrated the set up used to hit single cells with heavy ions, simulating cosmic rays. When asked about the importance of delivery rate to the damage caused, Betsy replied: "If a cell is hit once, there is no rate. Once is once."
If a cell is hit once, there is no rate.