Quartz Tuning Fork Sensor-Based Dosimetry for Sensitive Detection of Gamma Radiation

Abstract

This study generally relates to nuclear sensors and specifically to detecting nuclear and electromagnetic radiation using an ultrasensitive quartz tuning fork (QTF) sensor. We aim to detect low doses of gamma radiation with fast response time using QTF. Three different types of QTFs (uncoated and gold coated) were used in this study in order to investigate their sensitivity to gamma radiations. Our results show that a thick gold coating on QTF can enhance the quality factor and increase the resonance frequency from 32.7 to 32.9 kHz as compared to uncoated QTF. The results also show that increasing the surface area of the gold coating on the QTF can significantly enhance the sensitivity of the QTF to radiation. We investigated the properties of gold-coated and uncoated QTFs before and after irradiation by scanning electron microscopy. We further investigated the optical properties of SiO2 wafers (quartz) by spectroscopic ellipsometry (SE). The SE studies revealed that even a small change in the microstructure of the material caused by gamma radiation would have an impact on mechanical properties of QTF, resulting in a shift in resonance frequency. Overall, the results of the experiments demonstrated the feasibility of using QTF sensors as an easy to use, low-cost, and sensitive radiation detector.

Effects of Strength Training on Physical Conditioning in Soccer Players

“…8 The strength index is throwing the ball and kicking the ball at a fixed point, the "Chinese Youth Football Training Outline" does not have an index to test the strength of the youth. 9 The hand throw is an index set according to the actual situation of the football game, and it has certain pertinence to the upper body strength level of football players. The fixed-point kicking distance is borrowed from the index in "Research on the Change Characteristics of Sports Biomechanical Information of the Instep Kicking Technique Before and After Fatigue".…”

Review—Measurements of Ionizing Radiations Using Micromechanical Sensors

“…Nadyah Alanazi et al 60 evaluated the sensitivity of gold-coated QTFs to gamma radiation from a Cs-137 source. The experiment consisted of three types of QTFs: an uncoated QTF (QTF), a gold coated QTF (QTFg), and a QTF that is coated with a larger surface area of gold (QTFgl).…”