XL-Calibur is a hard X-ray (15-80 keV) polarimetry mission operating from stabilised balloon-borne platform in the stratosphere. It builds on heritage X-Calibur mission, which observed accreting neutron star GX 301-2 Antarctica, between December 29th 2018 and January 1st 2019. The design incorporates an mirror, focusses X-rays onto polarimeter comprising beryllium rod surrounded by Cadmium Zinc...

Urbanization and global climate change are two important environmental phenomena in the 21st century. Human activities changes usually increase uncertainties of ecosystem functions structures can greatly affect regional landscape patterns carbon cycle. Consequently, it is critical to understand how various land-use influence dynamics at a scale. In this study, we quantitatively analyzed spatial...

We are studying two new detector technologies that directly measure the three-dimensional coordinates of 511 keV photon interactions for high-resolution positron emission tomography (PET) systems designed for small animal and breast imaging. These detectors are based on (1) lutetium oxyorthosilicate (LSO) scintillation crystal arrays coupled to position-sensitive avalanche photodiodes (PSAPD) a...

This paper presents a unique modelling of harmonics and comparison between high irradiance and low irradiance in PV system connected to a grid. The signals used are actual tested waveforms in a distributed PV system. The percentage error has been calculated for the individual parameters in both cases. The comparative study using Chirp Z transform (CZT) with 7 term B Harris Window will enable to...

The Cadmium Zinc Telluride (CZT) Imager on board AstroSat is a hard X-ray imaging spectrometer operating in the energy range of 20 $-$ 100 keV. It also acts as an open monitor above keV capable detecting transient events like Gamma-ray Bursts (GRBs). Additionally, instrument has sensitivity to measure polarization 400 for bright on-axis sources Crab and Cygnus X-1 GRBs. As instruments CZTI are ...