( ( At ( ( the spot ) ( of ( collision ( of ( ( ( the beam ) , ) ( particles ( of ( solid-state matter ) ) ) ) ) ) ) ) ) ( , ( electrons ( ( are ( converted ( into ( heat ( kinetic energy ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (NP (DT the) (NN spot)) (PP (IN of) (NP (NP (NN collision)) (PP (IN of) (NP (NP (DT the) (NN beam)) (, ,) (NP (NP (NNS particles)) (PP (IN of) (NP (JJ solid-state) (NN matter)))))))))) (, ,) (NP (NNS electrons)) (VP (VBP are) (VP (VBN converted) (PP (IN into) (NP (NN heat) (JJ kinetic) (NN energy))))) (. .)))
At the spot of collision of the beam, particles of solid-state matter, electrons are converted into heat kinetic energy .
(ROOT (S (NP (NNP Solid)) (VP (VBZ exists) (SBAR (IN if) (S (NP (NNS particles)) (VP (VBP do) (RB not) (VP (VB have) (NP (ADJP (RB enough) (JJ kinetic)) (NN energy) (S (VP (TO to) (VP (VB overcome) (NP (NP (DT the) (NN force)) (PP (IN of) (NP (NP (NN attraction)) (PP (IN between) (NP (PRP them))))))))))))))) (. .)))