Phys. Rev. A 68, 042903 (2003) [6 pages]Experimental energy straggling of protons in SiO2Received 7 May 2003; published 23 October 2003 The energy straggling of proton beams in SiO2 has been measured in the energy range from 30 to 1500 keV using the transmission, nuclear reaction analysis and Rutherford backscattering techniques. The experimental results are compared with theoretical models. We observe that at energies around 200 keV the values obtained are larger than theoretical estimations. The straggling effect produced by the electron bunching in molecular media was calculated and it was found to be a possible cause of these differences at intermediate energies. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.042903
DOI:
10.1103/PhysRevA.68.042903
PACS:
34.50.Bw
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