A MEMS-based high frequency x-ray chopper

Siria, Alessandro; Dhez, Olivier; Schwartz, Wilfrid; Torricelli, G.; Comin, F.; Chevrier, J.

doi:10.1088/0957-4484/20/17/175501

Cited by 3 publications

(1 citation statement)

References 22 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When incorporated into existing X-ray synchrotron sources, MEMS-based X-ray optics could be used to implement compact non-accelerator approaches to control pulse characteristics such as shape and phase of an X-ray wavefront. In spite of the promise and potential of this technology, no studies have so far assessed the effectiveness of MEMS devices as X-ray optics 20 .…”

mentioning

confidence: 99%

X-ray photonic microsystems for the manipulation of synchrotron light

et al. 2015

View full text Add to dashboard Cite

Photonic microsystems played an essential role in the development of integrated photonic devices, thanks to their unique spatiotemporal control and spectral shaping capabilities. Similar capabilities to markedly control and manipulate X-ray radiation are highly desirable but practically impossible due to the massive size of the silicon single-crystal optics currently used. Here we show that micromechanical systems can be used as X-ray optics to create and preserve the spatial, temporal and spectral correlation of the X-rays. We demonstrate that, as X-ray reflective optics they can maintain the wavefront properties with nearly 100% reflectivity, and as a dynamic diffractive optics they can generate nanosecond time windows with over 100-kHz repetition rates. Since X-ray photonic microsystems can be easily incorporated into lab-based and next-generation synchrotron X-ray sources, they bring unprecedented design flexibility for future dynamic and miniature X-ray optics for focusing, wavefront manipulation, multicolour dispersion, and pulse slicing.

show abstract

mentioning

confidence: 99%

X-ray photonic microsystems for the manipulation of synchrotron light

et al. 2015

View full text Add to dashboard Cite

show abstract

Temporal modulation of x-rays using MEMS micromirrors

Mukhopadhyay

Walko

Jung

et al. 2011

2011 16th International Solid-State Sensors, Actuators and Microsystems Conference

View full text Add to dashboard Cite

Piezo-modulated active grating for selecting X-ray pulses separated by one nanosecond

et al. 2021

View full text Add to dashboard Cite

We present a novel method of temporal modulation of X-ray radiation for time resolved experiments. To control the intensity of the X-ray beam, the Bragg reflection of a piezoelectric crystal is modified using comb-shaped electrodes deposited on the crystal surface. Voltage applied to the electrodes induces a periodic deformation of the crystal that acts as a diffraction grating, splitting the original Bragg reflection into several satellites. A pulse of X-rays can be created by rapidly switching the voltage on and off. In our prototype device the duty cycle was limited to ∼1 ns by the driving electronics. The prototype can be used to generate X-ray pulses from a continuous source. It can also be electrically correlated to a synchrotron light source and be activated to transmit only selected synchrotron pulses. Since the device operates in a non-resonant mode, different activation patterns and pulse durations can be achieved.

show abstract

A MEMS-based high frequency x-ray chopper

Cited by 3 publications

References 22 publications

X-ray photonic microsystems for the manipulation of synchrotron light

X-ray photonic microsystems for the manipulation of synchrotron light

Temporal modulation of x-rays using MEMS micromirrors

Piezo-modulated active grating for selecting X-ray pulses separated by one nanosecond

Contact Info

Product

Resources

About