Influence of SHI upon nanohole free volume and micro scale level surface modifications of polyethyleneterephthalate polymer films

R Kumar, P Singh - Applied Surface Science, 2015 - Elsevier
Topographic micro scale and in-depth nano scale level modifications of polymeric materials
play an important role in engineering their physical and chemical properties. Polyethylene …

Free volume evolution in 50 MeV Li3+ ion-irradiated polymers studied by positron annihilation lifetime spectroscopy

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 …

Ion induced modification in free volume in PN-6 and PES polymers by positron annihilation lifetime studies

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 …

Optical properties of CR-39 track etch detectors irradiated by alpha particles with different energies

MF Eissa - Journal of Materials Science and Engineering, 2011 - search.proquest.com
Because of the immense variety of applications of CR-39 track detectors, the optical
properties of CR-39 polymer track detectors which irradiated by alpha particle at different …

Effect of alpha-particle energies on CR-39 line-shape parameters using positron annihilation technique

M Abdel-Rahman, M Abdel-Rahman… - Progress in …, 2006 - books.google.com
Polyally diglycol carbonate “CR-39” is widely used as etched track type particle detector.
Doppler broadening positron annihilation (DBPAT) provides direct information about core …

70 MeV Carbon C5+ ion induced modification in polystyrene by positron annihilation

R Kumar, R Prasad - Radiation measurements, 2005 - Elsevier
Polystyrene is the radiation resistant polymer and occupies a unique position in the study of
radiation effects. The bombardment with swift heavy ions (SHI) results in the change of free …

Free volume study of 70 MeV carbon induced modification in polymers through positron annihilation

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) …

[PDF][PDF] Studying Alpha Irradiated CR39 Using Positron Annihilation Spectroscopy.

S Limam, A Guittoum, Z Lounis-Mokrani… - Acta Physica …, 2023 - przyrbwn.icm.edu.pl
Polyallyldiglycol carbonate (C12H18O7), or CR39, is an amorphous polymer. It is a
particular type of solid-state nuclear track detector (SSNTD), distinguished by its capacity to …

Positron lifetime studies of the dose dependence of nanohole free volumes in ion-irradiated conducting poly-(ethylene-oxide)–salt polymers

R Kumar, U De, PMG Nambissan, M Maitra… - Nuclear Instruments and …, 2008 - Elsevier
Polymer based ion conducting materials have potential applications as an electrolyte and
separator in the field of lithium batteries. Solid polymer electrolytes for lithium batteries are …

Studies of the o-Ps lifetime and free volume in ion irradiated Makrofol-KG polycarbonate by positron annihilation

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 …