Energy loss straggling for α-particles in varying thicknesses of Al, Ti and Ni metallic foils. (January 2015)

• Record Type: Journal Article
• Authors: Kumar, Sunil; Diwan, P.K.; Kumar, Shyam
• Is Part Of: Radiation physics and chemistry. Volume 106(2015:Jan.)
• Page Start: 21
• Page End: 25
• Publication Date: 2015-01
• Subjects: Straggling -- Statistical fluctuations -- Energy loss -- α-Particles -- Metallic foil; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2014.05.062
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: The energy loss straggling for α-particles, in the fractional energy loss limits (Δ E / E )~10–75%, has been measured in varying thicknesses of Aluminum, Titanium and Nickel metallic foils. These measured values have been compared with the corresponding computed values adopting different theoretical/semi-empirical formulations viz. Bohr, Lindhard and Scharff, Bethe–Livingston, Yang et al. and Titeica. The purpose of this comparison is to recognize the best formulation for such straggling calculations. Highlights: Straggling in energy loss for 5.486 MeV α-particles in three metallic foils was measured. For α-particles, 241 Am source was used. Measured straggling values were compared with the commonly used straggling formulations. Titeica theory was recognized as a best theory.