Phy-X / PSD: Development of a user friendly online software for calculation of parameters relevant to radiation shielding and dosimetry

Physics of Radiology

The oxides of copper (CuxO) are fascinating materials due to their remarkable optical, electrical, thermal and magnetic properties. Nanostructuring of CuxO can further enhance the performance of this important functional material and provide it with unique properties that do not exist in its bulk form. Three distinctly different phases of CuxO, mainly CuO, Cu2O and Cu4O3, can be prepared by numerous synthesis techniques including, vapour deposition and liquid phase chemical methods. In this article, we present a review of nanostructured CuxO focusing on their material properties, methods of synthesis and an overview of various applications that have been associated with nanostructured CuxO.

Nanostructured copper oxide semiconductors : a perspective on materials, synthesis methods and applications

Attenuation coefficients and exposure buildup factor of some rocks for gamma ray shielding applications

(1987). Atoms, Radiation and Radiation Protection. International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine: Vol. 51, No. 5, pp. 951-951.

Atoms, Radiation and Radiation Protection

A study of gamma attenuation parameters in poly methyl methacrylate and Kapton

We have identified the most probable projectile-target combination by studying the fusion cross section, evaporation residue cross section, compound nucleus formation probability (${P}_{\mathrm{CN}}$), and survival probability (${P}_{\mathrm{Surv}}$) of different projectile target combinations to synthesize the superheavy element $Z=122$. The selected most probable projectile-target combinations to synthesize the superheavy element $Z=122$ are $\mathrm{Cr}+\mathrm{Cf}$, $\mathrm{Fe}+\mathrm{Cm}$, $\mathrm{Se}+\mathrm{Ra}$, and $\mathrm{As}+\mathrm{Ac}$. Superheavy nuclei may decay through the different decay modes such as spontaneous fission, ternary fission, and cluster decay. We have also studied the half-lives of spontaneous fission, ternary fission, and cluster decay of the predicted nuclei for $Z=122$ and compared with that of alpha decay. This enables us to study the competition between spontaneous fission, ternary fission, cluster decay, and alpha decay in the superheavy nuclei of $Z=122$. The comparision of half lives for different decay modes reveals that alpha decay is having smaller half lives than the other studied decay modes. A detail study of branching ratio of alpha decay with respect to other decay modes also confirms that alpha decay is most dominant decay mode for the isotopes superheavy nuclei $^{307--314}122$ and hence these nuclei can be detected through the alpha decay mode only. We hope that our predictions may be guide for the future experiments in the synthesis of more isotopes of superheavy nuclei $\mathrm{Z}=122$.

Investigations of the synthesis of the superheavy element Z = 122

Competition between spontaneous fission ternary fission cluster decay and alpha decay in the super heavy nuclei of Z = 126

Alpha decay properties of superheavy nuclei Z = 126

Effective atomic numbers' (Z(eff)) effective electron density (N(el)) for human organs and tissues have been computed in the energy region of 1 keV to 100 GeV using WinXCOM. The computed data of Z(eff) and N(el) are tabulated. The computed values are compared with previous results. The computed data of Z(eff)and N(el)for almost all tissues (34 tissues of different human organs) in the given energy range are not available in literature and find application in radiotherapy and dosimetry.

H. C. Manjunatha

Papers

A study of gamma attenuation parameters in poly methyl methacrylate and Kapton

Investigations of the synthesis of the superheavy element Z = 122

Competition between spontaneous fission ternary fission cluster decay and alpha decay in the super heavy nuclei of Z = 126

Alpha decay properties of superheavy nuclei Z = 126

Study of effective atomic number and electron density for tissues from human organs in the energy range of 1 keV-100 GeV.