We report constraints on light dark matter through its interactions with shell electrons in the PandaX-II liquid xenon detector a total 46.9 tonne$\cdot$day exposure. To effectively search for these very low energy electron recoils, ionization-only signals are selected from data. 1821 candidates identified within ionization signal range between 50 to 75 photoelectrons, corresponding mean electr...

The zinc-cadmium oxide (ZnO-CdO) nanocomposites with different weight percentages of cadmium oxide (CdO) nanoparticles were successfully synthesized by the sonochemical method using zinc and cadmium nitrates as precursors to probe their nano-structured surfaces for the decomposition reactions of chloroethyl phenyl sulfide (CEPS) as a surrogate of sulfur mustard agent simulant. Scanning electron...

Radiation detector systems in nuclear medicine imaging A radiation detector system in nuclear medicine imaging is definitely a timely topic or area of research where not many papers are available in the literature of nuclear medicine imaging. Arguably, no single device can detect all kinds of radiation and no one device is useful in all situations. Understanding of the principles of radiation d...

PURPOSE Assessment of the fundamental dosimetric characteristics of a novel gated fiber-optic-coupled dosimetry system for clinical electron beam irradiation. METHODS The response of fiber-optic-coupled dosimetry system to clinical electron beam, with nominal energy range of 6-20 MeV, was evaluated for reproducibility, linearity, and output dependence on dose rate, dose per pulse, energy, and...

in this study, a general theoretical model to foresee and calculate the current-voltagecharacteristics in a plateau zone and the associated efficiency of the neutron detector (sensitivity) is presented. this study is to complete the previous studies in this field. the model also considers electric field distortion resulting from the charge collection effect. the characteristics curve is obtaine...

simple, cheap and green protocol for effective conversion of alcohols to corresponding carbonyl compounds in the presence of h14[nap5w30o110] and ammonium nitrate is reported. the products were characterized by ft-ir and comparison of their physical properties with those reported in the literatures. the progress of the reaction was monitored by thin layer chromatography (tlc) technique. the ali...

The specific nitrogen flame-ionization detector was used for the rapid simultaneous determination of eight anticonvulsant drugs and one drug metabolite in plasma and for three of the drugs in tissues. The system of analysis allows the occasional rapid estimation of barbiturate in plasma. No derivative formation is required and the whole range of drugs can be determined in a single diethyl ether...

We present new measurements on a Cryogenic Dark Matter Search (CDMS) detector with electron, neutron, and gamma sources. The measurements have been performed to investigate the dead layer of one of the CDMS Z-dependent Ionization Phonon germanium detectors. The dead layer has been studied at both charge electrodes and at different electric field intensities. We also present a method to remove t...