See under secondary beam.
TAKE ROUND 2 OF OUR PSAT VOCABULARY QUIZ!
Here is our second set of teacher-selected PSAT vocabulary words. Do you know the meanings of these terms?
Question 1 of 10
Words nearby primary beam
Definition for primary beam (2 of 2)
a beam of particles of one kind selected from the group of particles produced when a beam of particles from an accelerator (primary beam) strikes a target.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020