Pyroelectric Radiation Detectors

Harvesting Nanoscale Thermal Radiation Using Pyroelectric Materials

Pyroelectric energy conversion offers a way to convert waste heat directly into electricity. It makes use of the pyroelectric effect to create a flow of charge to or from the surface of a material as a result of heating or cooling. However, an existing pyroelectric energy converter can only operate at low frequencies due to a relatively small convective heat transfer rate between the pyroelectr...

Detectors of Radiation

Optical Radiation Detectors & Noise

In this lab, we investigated the responsivity, time response, and noise performance of various photodetectors, including thermal detectors, silicon photodiodes, and photomultiplier tubes (PMT). A standard helium-neon gas laser (HeNe), operated in the red (632.8 nm), was used as the light source for the measurements of the silicon photodiodes. A flashlight served as a radiation source to measure...

Study on Pyroelectric Harvesters Integrating Solar Radiation with Wind Power

Pyroelectric harvesters use temperature fluctuations to generate electrical outputs. Solar radiation and waste heat are rich energy sources that can be harvested. Pyroelectric energy converters offer a novel and direct energy-conversion technology by transforming time-dependent temperatures directly into electricity. Moreover, the great challenge for pyroelectric energy harvesting lies in findi...

An5 Radiation Detectors and Dosimetry

Aims Studying this chapter should give you some appreciation of the variety of radiation detectors available and equip you with some practical knowledge about their characteristics and uses. This chapter also contains practical knowledge about the description and measurement of the effects of radiation on humans. You should learn how the problem of measuring doses is currently handled in terms ...