Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8208448 | Applied Radiation and Isotopes | 2018 | 6 Pages |
Abstract
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 2â¯mm in diameter with thickness of 50/5/20/150â¯nm of Ti:Pt:Au:Ni. The optimum operating voltage of the sensor was determined from the current-voltage measurements. The sensor was calibrated with 239Pu and 241Am alpha radiation sources at 300â¯V. The energy resolution of the Ti:Pt:Au:Ni diamond sensor was determined to be 7.6% at 5.2â¯MeV of 239Pu and 2.2% at 5.48â¯MeV of 241Am. The high-pressure gas loading environment under which this sensor was used is discussed. Specifically, experimental observations are described using hydrogen loading of nickel as a means of initiating low energy nuclear reactions. No neutrons, electrons, ions or other ionizing radiations were observed in these experiments.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Haruetai Kasiwattanawut, Modeste Tchakoua Tchouaso, Mark A. Prelas,