This paper reports the first discovery of TeV gamma-ray emission from a supernova remnant made with the CANGAROO 3.8 m Telescope. TeV gamma rays were detected at the sky position and extension coincident with the north-east (NE) rim of shell-type Supernova remnant (SNR) SN1006 (Type Ia). SN1006 has been a most likely candidate for an extended TeV Gamma-ray source, since the clear synchrotron X-...

The CGMF code implements the Hauser-Feshbach statistical nuclear reaction model to follow de-excitation of fission fragments by successive emissions prompt neutrons and $\gamma$ rays. Monte Carlo technique is used facilitate analysis complex distributions correlations among observables. Starting from initial configurations for in mass, charge, kinetic energy, excitation spin, parity, $Y(A,Z,KE,...

We report recent results of the CANGAROO Collaboration on very high energy gamma ray emission from pulsars, their nebulae, SNR and AGN in the southern sky. Observations are made in South Australia using the imaging technique of detecting atmospheric Cerenkov light from gamma rays higher than about 1 TeV. The detected gamma rays are most likely produced by the inverse Compton process by electron...

Clusters of galaxies and the large scale filaments that connect neighboring clusters are expected to be sites of acceleration of charged particles and sources of non-thermal radiation from radio frequencies to gamma rays. Gamma rays are particularly interesting targets of investigation, since they may provide precious information on the nature and efficiency of the processes of acceleration and...

Some nuclides emit multiple gamma rays or X-rays when they decay to the ground state. If these gamma rays and X-rays are emitted essentially at the same time, it is possible that multiple photons will be detected at the same time in the detector and appear as one full-energy peak in the spectrum. This is known as “Cascade” or “True Coincidence” summing. The most common example of this is Co, wh...

We report recent results of the CANGAROO Collaboration on very high energy gamma ray emission from pulsars, their nebulae, SNR and AGN in the southern sky. Observations are made in South Australia using the imaging technique of detecting atmospheric Cerenkov light from gamma rays higher than about 1 TeV. The detected gamma rays are most likely produced by the inverse Compton process by electron...

The effect of cadmium chloride concentrations (25.50, 75, and 100 mg/kg soil), seeds pre-irradiated by low doses of gamma rays (15, 30, 45, and 60 Gy), potassium chloride (60 mg/kg soil) and the combination of cadmium + gamma and cadmium + potassium on Brassica rapa germination, oxidative stress and antioxidant system were investigated under laboratory and greenhouse conditions. Germination per...

A review of medical diagnostic imaging methods utilizing x-rays or gamma rays and the application and development of inorganic scintillators is presented.