Euclid Techlabs wins three 2018 DOE Phase II SBIR grants
Euclid Techlabs wins three grants in the recently released 2018 DOE Phase II SBIR awards (click here for DOE's link). More specifically, two of them are awarded with Phase IIA, which is a representation and continuation of a successfully completed Phase II project.
Furthermore, Euclid Techlabs' success story about commercialization of the Phase II products has been recently published on the DOE SBIR website. Check here
A short description by Alexei Kanareykin, president of Euclid Techlabs, of each awarded Phase II project is given below.
- Phase IIA. GHz Electron Buncher Compatible with Commercial TEMs for Stroboscopic Imaging with Space-Time Resolution between 10^-23 and 10^-20 m∙s
- Phase IIA. Single Crystal Diamond Compound Refractive Lens
- Phase II. Low RF loss DC Conductive Ceramic for High Power Input Coupler Windows for SRF Cavities
In the modern technological era, many breakthroughs rely on understanding how advanced nanoscopic materials or devices operate at rates approaching or exceeding 1 GHz. This requires adequate instrumentation. At the moment, none of electron- or photon-based time-resolved techniques/tools is able to provide GHz-scale sampling rates. Factors limiting sampling rates at light sources are complex, and even if they are solved, limited beam time allocations will still limit the availability of x-ray GHz methods. In ultrafast transmission electron microscopy (UTEM), which makes use of a stroboscopic laser-based pump-probe method in which the data are repeatedly collected over extended periods of time, the thermal load from the pump laser must be handled so that the process under study stays reversible. As a result, GHz sampling is not attainable, and the maximum sampling rate is sub-GHz.
A novel laser-free time-resolved GHz stroboscopic concept for TEM proposed by Euclid would resolve
sub-nanosecond processes in advanced magnetic, electronic, ionic and photonic materials/devices, driven
by electromagnetic stimuli, under actual operation conditions. In the family of time-resolved electron
probe methods, such a laser-free GHz stroboscopic concept would fulfill a different temporal landscape
that is complementary to the existing commercial solutions.
Next generation light sources, diffraction-limited storage rings, and high repetition rate free electron lasers will have significantly increased the average brightness of the generated X-ray beams. These machines will require X-ray refractive optics with precise dimensional control and smooth surfaces that are capable of handling large heat loads and preservation of the x-ray beam quality.
In this project we will machine refractive lenses out of single crystal diamonds. With the choice of single
crystal diamond for the lens, the scattering on grain boundaries, defects and voids associated with
polycrystalline materials currently used will be eliminated and the coherence of the X-rays will be
The high-power RF coupler connects the RF transmission line to the SRF cavity, and provides the RF power to the cavity that is used to accelerate the particle beam. In addition to this RF function, the coupler also provides the vacuum barrier for the beam vacuum using RF windows. Ceramic RF windows used in power couplers for superconducting cavities are prone to accumulate volume and surface charges. The electric field generated by charging builds up until it discharges, with the resultant arc damaging or destroying the window.
Euclid has developed a new ceramic composition that exhibits low losses at high frequencies but is
conductive at DC. This allows the charge to drain off rather than being accumulated in the material. In
Phase I of the project, we synthesized ceramic material having a very low dielectric loss at microwave
frequencies and exhibiting two orders of magnitude increased conductivity. We also carried out a beam-
charging test of the developed ceramic. In Phase II of this project, the high-power RF windows made of
this new ceramic will be fabricated and tested at high power.
Edited and updated by Ao Liu on 2018-04-13