Angular distributions of 1 GeV protons channeled in bent short single-wall carbon nanotubes

✍ Scribed by N. Nešković; S. Petrović; D. Borka

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 231 KB
• Volume: 230
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2004.12.026

✦ Synopsis

This study is devoted to the angular distribution of protons of the energy of 1 GeV channeled in a bent short rope of (10, 10) single-wall carbon nanotubes as a function of the bending angle. The rope length was chosen to be 7 lm, corresponding to the reduced rope length associated with the transverse proton motion inside a nanotube equal to 0.103. The bending angle was varied between 0 and 1.5 mrad. The angular distributions of channeled protons and the corresponding rainbow patterns were generated using the theory of crystal rainbows, with the Molie `reÕs expression for the continuum potential of the rope. The results obtained show that the total yield of protons channeled in the rope as a function of the bending angle has the inflection point at 0.45 mrad, and that it falls below 10% of the yield for the straight rope at 1.25 mrad.