Adapting Accelerators for FLASHAt the time of the first FLASH publication, Loo and his team at Stanford were also focused on dramatically speeding up radiation delivery. But Loo wasn’t chasing a radiobiological breakthrough. He was trying to solve a different problem: motion.
Number (7): Everything in this space must add up to 7. The answer is 1-4, placed horizontally; 3-0, placed vertically.
，这一点在新收录的资料中也有详细论述
// 1. 统计每个元素出现次数
// Signal how many bytes we wrote