Difference between revisions 2241194 and 2243871 on enwikiversity

[[Image:Detectors summary 3.png|thumb|right|250px|This tree diagram shows the relationship between types and classification of most common particle detectors. Credit: [[commons:User:Wdcf|Wdcf]].]]
'''Radiation detectors''' provide a signal that is converted to an electric current. The device is designed so that the current provided is proportional to the characteristics of the incident radiation.

(contracted; show full)
|author=Gustavo Alverio
|publisher=University of Central Florida
|accessdate=2008-10-21 }}</ref> A typical configuration for mechanical Pd-based hydrogen sensors is the usage of a free-standing cantilever that is coated with Pd.<ref name="Baselt">{{cite journal
|http://www.sciencedirect.com/science/article/pii/S0925400502003155
|title=Design and performance of a microcantilever-based hydrogen sensor
|author=D.R. Baselt
|journal=Sensors and Actuators B

|accessdate=2013-02-26 }}</ref><ref name="Okuyama">{{cite journal
|url=http://jjap.jsap.jp/link?JJAP/39/3584/
|title=Hydrogen Gas Sensing Using a Pd-Coated Cantilever
|author=Sumio Okuyama
|publisher=Japanese Journal of Applied Physics
|accessdate=2013-02-26 }}</ref> In the presence of H<sub>2</sub>, the Pd layer expands and thereby induces a stress that causes the cantilever to bend. Pd-coated nano-mechanical resonators have also been reported in literature, relying on the stress-induced mechanical resonance frequency shift caused by the presence of H<sub>2</sub> gas. In this case, the response speed was enhanced through the use of a very thin layer of Pd (20 nm). Moderate heating was presented as a solution to the response impairment observed in humid conditions.<ref name="Henriksson">{{cite journal
|title=Ultra-low power hydrogen sensing based on a palladium-coated nanomechanical beam resonator
|author=Jonas Henriksson
|journal=Nanoscale Journal
|accessdate=2013-02-26 }}</ref>

==Liquid objects==
{{main|Liquids/Liquid objects|Liquid objects}}
[[Image:Hot and cold water immiscibility thermal image.jpg|thumb|right|250px|Thermal image of a sink full of hot water with cold water being added shows the hot and the cold water flowing into each other. Credit: [[commons:User:Zaereth|Zaereth]].]]
(contracted; show full){{tlx|Radiation astronomy resources}}{{Principles of radiation astronomy}}{{Sisterlinks|Radiation detectors}}

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