The theme of the TEXONO research program is on the studies of low energy neutrino and dark matter physics. The current goals of the TEXONO research program are on the development of germanium detectors with sub-keV sensitivities to realize experiments on neutrino magnetic moments, neutrino-nucleus coherent scattering, as well as WIMP dark matter searches. An energy threshold of 220 eV was achie...

A 300kBq Na source is placed between the front surface of planar detector and the position sensitive detector (PSD) as shown in figure 1(a). This source emits pairs of 511 keV positron annihilation photons in opposite directions. The germanium detector is placed in the focal plane of the system at a distance of 15 cm from the source whereas the PSD is at 5 cm from it in order to cover the full ...

Introduction: Nuclear radiation is potentially harmful to humans and soil contamination with radionuclides is the main source of human radiation exposure. These radionuclides can., enter to human body through the food chain. In this study, 34 soil samples were collected from between Arak city and Shazand Power Plant over 20 km length and analyzed. Materials and Methods: The specific activities ...

Radon studies have been conducted in many countries of the world in indoor air but such studies in drinking waters are sparse. We present the results of Rn activity concentration measurements in drilled and dug well drinking waters from three large cities in Ogun State, southwestern Nigeria. The measurements were done suing high-resolution high-purity germanium (HPGe) detector (Canberra Industr...

Experiments were carried out at the Wright Nuclear Structure Laboratory at Yale University using the 21MV ESTU Tandem Van de Graaff accelerator with the purpose of studying Y. A beam of O impinged at laboratory energies of 60, 65 and 70 MeV on a 600 μg/cm Ge target with a thick (10mg/cm) Au backing. This experiment was performed with the specific aim of accessing medium spin states of the nucle...

below and are based on some basic concepts about how the detection process works, how gamma rays penetrate materials, and the principles of gamma-ray spectroscopy. Unresolved choice issues can be reduced to a level where they have little or no impact on the resultant performance of the spectrometry system. This document explains how you can easily make a wise, well-informed choice. We assume yo...

The radionuclide contents and their activity concentrations in beach sand, sediment and adjacent soil samples collected from Inani sea beach, Cox’s Bazar, Bangladesh were determined by using a high resolution germanium detector (HPGe) of 20% relative efficiency. A total of eighteen samples of three categories were collected and analysed. The activity concentrations of Ra, Th and K in the sand s...

Exposure to radioactive elements or having them through drinking water causes many biological risks. Therefore, it is important to investigate the drinking water especially in regions where people depend on well water for drinking. Concentrations of some radionuclides in some water wells, in Arar city of Saudi Arabia, were measured by using Hyper Pure Germanium (HPGe) Detector. Concentrations o...

This paper provides a collection of data relevant to the use of various types of semiconductor detector in nuclear spectroscopy and gives examples of the use of detectors in specific experimental applications. Basic data on absorption of various kinds of radiation in germanium and silicon are given, and these are related to the characteristics of different types of semiconductor detectors. A br...

A prototype gamma-ray scanning system was designed to perform post-irradiation examination measurements of nuclear fuel. The is composed a coaxial high-purity germanium (HPGe) detector, collimator, and mechanical positioning stages that translate the fuel sample across front collimator. This paper documents design process, modeling laboratory characterization performed validate system. done usi...