Abstract
The mass attenuation coefficients of graphene, MWNTs and, SWNTs have been measured for gamma energy range 356 to 1332 keV from the radioactive sources 60Co, 133Ba and 137Cs using a well calibrated gamma ray spectrometer consisting of a 3 ́ ́x 3 ́ ́ NaI(Tl) scintillation detector coupled to a PC based 8K nuclear Multi Channel Analyser (MCA). In an interesting way results showed that MWNTs had the highest values of mass attenuation coefficients indicating their potential use as the best shielding material.
References
T. Fujikawa and H. Arai, J. Elec. Spect. Relat. Phenom. 174 (2009) 85–92. https://doi.org/10.1016/j.elspec.2009.07.007
T. Fujikawa, J. Elec. Spect. Relat. Phenom. 173 (2009) 51–78. https://doi.org/10.1016/j.elspec.2009.04.011
K. Sawada, S.Murakami and N. Nagaosa, Phys. Rev. Lett. 96 (2006) 154802. https://doi.org/10.1103/PhysRevLett.96.154802
A.N. Lagarkov, and A.K. Sarychev, Phys. Rev. B 53 (1996) 6318–6336. https://doi.org/10.1103/PhysRevB.53.6318
Z. Peng, J. Peng and Y. Ou, Phys. Lett. A 359 (2006) 56–60. https://doi.org/10.1016/j.physleta.2006.05.076
S.B. Tooski, J. Appl. Phys. 109 (2011) 14318–14324. https://doi.org/10.1063/1.3525059
K.L. Dudley, R.W. Lawrence, Nano Lett. 5 (2005) 2131–2134. https://doi.org/10.1021/nl051375r
Z. Liu, G. Bai, Yi. Huang, Y. Ma, F. Du, F. Li, T. Guo, Y.Chen, Carbon. 45 (2007) 821–827. https://doi.org/10.1016/j.carbon.2006.11.020
A.L. Higginbotham, P.G. Moloney, M.C. Waid, J.G. Duque, C. Kittrell, H.K. Schmidt, J.J. Stephenson, S. Arepalli, L.L.Yowell, J.M. Your, Comp. Sci. and tech. 68 (2008) 3087–3092.
Gamma Vision -32, 1998.Ver 5.10.EG & G, ORTEC.
I. Kaplan , Nuclear Physics, Addison-Wesley, New York, 1972.
J.H. Hubbell, and S.M. Seltzer, NIST Standard Database 126, National Institute of Standards and Technology; Gaithersburg, MD, July 2004.
J. Lu., D. Yuan, L. Jie, L. Weinan, E.K. Thomas, Nano Lett.. 8 (2008) 3325–3329. https://doi.org/10.1021/nl801744z
P. R. Bandaru and A. M. Rao, JOM 59, 33 2007 Special Issue on Nanomaterials for Electronic Applications. https://doi.org/10.1007/s11837-007-0036-1
S. H. Park, P. Theilmann, K. Yang, A. M. Rao, and P. R. Bandaru, Applied Physics Letters 96, 043115 2010 https://doi.org/10.1063/1.3292214
L. Landau, E. M. Lifshitz, and L. P. Pitaevskii, Electrodynamics of Continuous Media, 2nd ed. Butterworth-Heinemann, Boston, 1995.
F.J. Garcia-Vidal, J.M. Pitarke, J.B. Pendry, Phys Rev Lett. 78 (1997) 4289–4292. https://doi.org/10.1103/PhysRevLett.78.4289
Z. Ye, W.D. Deering, A. Krokhin, J.A. Roberts, Phys Rev B. 74 (2006) 075425–5. https://doi.org/10.1103/PhysRevB.74.075425