All Outputs (6)

Work-function measurement by high resolution scanning Kelvin nanoprobe (2007)
Journal Article
Cheran, L., Johnstone, S., Sadeghi, S., & Thompson, M. (2007). Work-function measurement by high resolution scanning Kelvin nanoprobe. Measurement Science and Technology, 18(3), 567-578. https://doi.org/10.1088/0957-0233/18/3/005

Nanoscience promises to transform today's world in the same way that integrated semiconductor devices transformed the world of electronics and computation. In the post-genomic era, the greatest challenge is to make connections between the structures... Read More about Work-function measurement by high resolution scanning Kelvin nanoprobe.

Nanometer scale patterning using focused ion beam milling (2005)
Journal Article
Petit, D., Faulkner, C., Johnstone, S., Wood, D., & Cowburn, R. (2005). Nanometer scale patterning using focused ion beam milling. Review of Scientific Instruments, 76(2), Article 026105. https://doi.org/10.1063/1.1844431

We report on the performance of focused ion beam (FIB) milling in order to produce nanometer scale devices. Resolution issues have been systematically studied as a function of emission current and working distance, by imaging single pixel lines FIB m... Read More about Nanometer scale patterning using focused ion beam milling.

Room Temperature Performance Of Submicron Bismuth Hall Probes (2004)
Journal Article
Petit, D., Atkinson, D., Johnston, S., Wood, D., & Cowburn, R. (2004). Room Temperature Performance Of Submicron Bismuth Hall Probes. IEE proceedings. Science, measurement and technology, 151(2), 127-130. https://doi.org/10.1049/ip-smt%3A20040167

Improving the probability of detection for a 2D ultrasonic array using digital signal processing techniques (2003)
Journal Article
Snowdon, P., Johnstone, S., & Dewey, S. (2003). Improving the probability of detection for a 2D ultrasonic array using digital signal processing techniques. Insight - Non-Destructive Testing & Condition Monitoring, 45(11), 743-745. https://doi.org/10.1784/insi.45.11.743.52956

An experiment was conducted to investigate the potential of using a linear array of probes consisting of a single transmitter (Tx) and multi-passive receivers (Rx) to improve defect detection. The array consisted of three 5 MHz straight-beam probes w... Read More about Improving the probability of detection for a 2D ultrasonic array using digital signal processing techniques.

A 2D static ultrasonic array of passive probes for improved probability of detection (2003)
Journal Article
Snowdon, P., Johnstone, S., & Dewey, S. (2003). A 2D static ultrasonic array of passive probes for improved probability of detection. Nondestructive Testing and Evaluation, 19(3), 111-120. https://doi.org/10.1080/10589750410001667884

An experiment was conducted to investigate the potential of using the passive (awaiting active pulsing) transducers in a 2D ultrasonic array as signal receivers. This paper will demonstrate that this new technique normal probe diffraction (NPD) which... Read More about A 2D static ultrasonic array of passive probes for improved probability of detection.

The application of parametric 3D finite element modelling techniques to evaluate the performance of a magnetic sensor system (2001)
Journal Article
Johnstone, S., & Peyton, A. (2001). The application of parametric 3D finite element modelling techniques to evaluate the performance of a magnetic sensor system. Sensors and Actuators A: Physical, 93(2), 109-116. https://doi.org/10.1016/s0924-4247%2801%2900647-1

This paper describes the application of parametric three-dimensional (3D) finite element analysis techniques to accurately model the response of a new industrial electromagnetic sensing system. The study focuses on a magnetic transformation detector... Read More about The application of parametric 3D finite element modelling techniques to evaluate the performance of a magnetic sensor system.