Radioactive Decay of Antimony-124

Studies on Mass Attenuation Coefficient, Effective Atomic Numbers and Electron Densities of Some Narcotic Drugs in the Energy Range 1KeV -100GeV

“…Similar results were also obtained by Perumallu et al [11] in multielement materials of biological importance and Manohara et al [31] in essential amino acids. These results are in line with the results of Rama Rao et al [4] and lingam et al [10]. The variation in Z eff is almost independent of energy for all the narcotic drugs listed.…”

“…These necessary constants are Z eff and electron density N el of the medium. As effective atomic numbers and electron densities are useful in many technological applications, several investigators [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] have made extensive studies of effective atomic numbers in variety of composite materials like alloys, polymers, compounds, and mixtures, thermoluminescent dosimetric compounds, semiconductors and superconductors. In the past Hiremath and Chikkur 20 In view of the extensive use of radiative sources in medicine, agriculture, industry, security screening etc., the study of photon-atom interactions (attenuation and energy absorption coefficients) and effective atomic numbers in different materials have gained importance in the recent years.…”