R Kumar, R Prasad - Nuclear Instruments and Methods in Physics …, 2007 - Elsevier
The irradiation of polymeric materials with swift heavy ions (SHI) results in a change of their free volume properties which have strong correlation with their macroscopic properties …
R Kumar, SA Ali, AK Mahur, D Das, AH Naqvi… - Nuclear Instruments and …, 2006 - Elsevier
Free volume properties of polymers have strong correlation with macroscopic properties and can be modified by radiations and ions. Positron annihilation lifetime spectroscopy (PALS) …
R Kumar, SA Ali, U De, AH Naqvi, SK Chaudhary… - Radiation …, 2008 - Elsevier
Passage of energetic heavy ions produces damage in a polymeric material resulting into the creation of latent tracks due to dissociation of bonds, cross-linking, formation of free radicals …
R Kumar, S Rajguru, D Das, R Prasad - Radiation measurements, 2003 - Elsevier
CR-39 is a polycarbonate widely used as SSNTD for recording nuclear charged particles and in other applications. Latent ion tracks produced in the polymers due to the damage …
Polymer films are finding many applications like microfilters for gas separation, water purification and blood filtration, etc. The effect of irradiation of 85 MeV O+ 6 ions on …
P Singh, R Kumar, R Prasad - Radiation Effects and defects in …, 2013 - Taylor & Francis
This article is aimed at studying the effect of ion irradiation on free volume of polyethersulphone (PES) and polyamide nylon-6 (PN-6) polymers by positron annihilation …
R Kumar, BK Nath, D Das, R Prasad - Indian Journal of Physics, 2004 - arxiv.iacs.res.in
Pnivcarbonatc (PC), or specifically polycarbonate of bisphenol IS an amorphous polymer with attractive engineering pinpcrtics, including high impact strength, low moisture …
Swift heavy ion (SHI) irradiation of polymeric materials results in the change of their free volume properties which have strong correlation with their macroscopic properties. The …
Latent ion tracks produced in the polymers due to the damage produced by the passage of swift heavy ions contain amorphous material with highest degree of disorder, changing the …