Efficiency limitation of thin film coated planar semiconductor thermal neutron detector.

Semiconductor thermal neutron detectors are increasingly been used in in-core thermal neutron flux measurements in nuclear reactors. One limitation of these detectors is that they suffer from low detection efficiency. In this work, the maximum efficiency of a planar structure thermal neutron detector was determined using two widely used computer codes: Geant4 and MCNP6.

Ti:Pt:Au:Ni thin-film CVD diamond sensor ability for charged particle detection.

This work demonstrates the development of diamond sensors with reliable contacts using a new metallization formula, which can operate under high-pressure gas environment. The metallization was created using thin film layers of titanium, platinum, gold and nickel deposited on a single crystal electronic grade CVD diamond chip. The contacts were 2 mm in diameter with thickness of 50/5/20/150 nm of Ti:Pt:Au:Ni.

High efficiency Dual-Cycle Conversion System using Kr-85.

This paper discusses the use of one of the safest isotopes known isotopes, Kr-85, as a candidate fuel source for deep space missions. This isotope comes from 0.286% of fission events.

Energy response of diamond sensor to beta radiation.

This paper demonstrates the ability of diamond sensors to respond to beta radiation. A Chemical Vapor Deposition (CVD) single crystal diamond was used in this work. The diamond crystal has a dimension of 4.

Beta Skin Dosimetry using Passivated Planar Silicon Detector.

Accurate measurement of beta skin dose remains a challenge. This dose is defined as the dose to the basil layer at 7 mg/cm (approximately 70 µm) below the surface of the skin and averaged over an area of 1 cm. This dose is dependent upon the energy of the beta contamination on the surface of the skin, the area of contamination and the attenuation of this radiation through the 7 mg/cm epidermal layer.