id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
f1881j94n34	Keefe Roedersheimer	A Study of the Impact of Multi-Leaf Collimator Rotation	2010		.txt	text/plain	262	13	53	Because tumor geometry is often irregular, it is useful to shape the beams to match the geometry of the tumor. The treatment planning problem in radiosurgery is the selection of a number of beams and the orientations of those beams, such that at their intersection they deliver a lethal dose to the tumor without exceeding the tolerance of any critical structure in their path.	cache/f1881j94n34.txt	txt/f1881j94n34.txt