collider accelerator; colliding-beam accelerator
Technical term in particle physics for an accelerator that collides two beams of particles.
CERN's Large Hadron Collider is the world's largest collider accelerator.
加速器 is a general term for any particle accelerator, while 衝突型加速器 specifically refers to a collider type where beams collide.
Compound of 衝突 (collision), 型 (type), and 加速器 (accelerator). A straightforward technical term.