Abstract
Detonation velocity is one of the most important characteristics of explosives. For solid hydro carbon-based explosives it is generally greater than 4000 m/s. Detonation velocity depends to some extent upon the particle size of the explosives, increased charge diameter and increased confinement of the explosive. There is no report indicating the dependence of detonation velocity on the effective atomic number and effective electron density of the explosive. In the present work, we have arbitrarily chosen eight explosives. Four of these have detonation velocity between 9400 and 10100 m/s, and the other four has detonation velocity between 4500 and 5300 m/s. Direct method was used to calculate effective atomic number and effective electron densities various explosives. On calculating effective atomic number and effective electron density, it was found that detonation velocity of explosives does depend upon these two parameters. For explosives with high detonation velocity, effective atomic number is high and effective electron density is low while for low detonation velocity explosives it is reverse. It was also found that the variation of effective atomic number and effective electron density as a function of gamma ray energy can be explained on the basis of three different gamma ray inter action mechanism of gamma rays with matter.
Highlights
An explosive is defined as a chemical compound which, when subjected to heat, impact, etc. undergoes very rapid, self-propagating, heat- producing decomposition
The first category consists of explosives with high Detonation Velocity (DV) (> 9400 m/s) and the second is with relatively small DV (~ 4500 to 5300 m/s)
Thicker lines correspond to the four explosives namely ONC, DDF, HHTDD and HMX
Summary
An explosive is defined as a chemical compound which, when subjected to heat, impact, etc. undergoes very rapid, self-propagating, heat- producing decomposition. In literature there is no report indicating that detonation velocity depends upon the effective Z (Zeff) or effective electron density (Neff) of the explosive. In the present work we have decided to study the effect of effective atomic number Zeff and effective electron density Neff of the explosive on the DV. For this we American Journal of Physics and Applications 2020; 8(5): 73-77 have chosen two types of explosives. The first category consists of explosives with high DV (> 9400 m/s) and the second is with relatively small DV (~ 4500 to 5300 m/s) For these two categories of explosives, we calculated the effective atomic number and effective electron densities. Effective atomic number and effective electron densities were evaluated in composite materials like dosimetric materials [3, 4], alloys [5, 6], semiconductors [7, 8], glasses [9], biological samples [10], gamma ray detectors [11], liquid crystals [12], narcotic drugs [13, 14] etc
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