11. One is a $ 4.5 billion linear accelerator , which makes tritium with high-energy beams. 12. In 1993, Brainlab developed a linear accelerator -based system for stereotactic radiosurgery using micromultileaf collimators. 13. It has been described as a linear accelerator running backwards. 14. APBI treatments can be given as brachytherapy or external beam with a linear accelerator . 15. Prescott also participated in studies for the design and implementation of future linear accelerators . 16. Protons are accelerated to 30 MeV by linear accelerator URAL-30. 17. MLCs are used on linear accelerators to provide conformal shaping of radiotherapy treatment beams. 18. Is it a requirement to use linear accelerators to get photons with higher energy. 19. But, if you are a woman who swoons over linear accelerators , consider Bryn Mawr. 20. Linear accelerators ( " linacs " ) accelerate elementary particles along a straight path.