| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Emergent Materials under Extremes and Decisive In Situ Characterizations
|
| Presentation Title |
Temperature Measurements in Radiation Environments Using Piezoelectric Surface Acoustic Wave Resonators |
| Author(s) |
Maha Yazbeck, Ryan Chesser, Yuzhou Wang, Marat Khafizov |
| On-Site Speaker (Planned) |
Maha Yazbeck |
| Abstract Scope |
Piezoelectric surface acoustic wave (SAW) devices are finding unique usage in radio-frequency applications. Recently, an interest in SAW resonators as passive wireless sensors for extreme environments have emerged. We demonstrate the application of lithium niobate (LiNbO3) and aluminum nitride (AlN) based devices to measure temperature when bombarded by energetic gamma particles and neutrons, present inside a nuclear fission reactor. Resonant frequency of platinum interdigitated transducer devices responds to nuclear reactor power. Initial analysis suggests that the temperature increase caused by gamma heating is the primary reason for observed changes, as the frequency shifts closely follow the temperature profile within the irradiation capsule measured using K-type thermocouple. Both LiNbO3 and AlN devices remained functional over the duration of irradiation. These results suggest that devices based on these piezoelectric materials offer an alternative mean for temperature measurement in radiation environments. |