Hembach Photonik GmbH’s Post

Optical Particle Sizing Optical particle sizing is an important application of volumetric light scattering, needed across numerous industries.  Figure (a) shows a typical measurement setup simulated in RayJack ONE®: a sample cell, which is filled with an aqueous suspension of particles, is illuminated by a convergent laser beam; concentric ring-shaped photodiodes measure the scattered light flux and are numbered with increasing diameter. The latter ranges from fractions of a mm for the inner to centimeters for the outer photodiodes. The suspension is assumed to have a bimodal particle size distribution (b). Mie theory is used for evaluation, taking into account side effects such as multiple scattering.  The resulting sensor signal is shown in (c), with the larger particles producing more signal on the inner photodiodes. Although it might look straightforward, reconstructing the particle size distribution from the sensor signals is a really difficult task, requiring advanced mathematical algorithms such as regularization.   Follow us on LinkedIn for the latest news, learn more about RayJack ONE® on our website, https://lnkd.in/d_bzNUA and our YouTube channel: https://lnkd.in/eKQHaUFg #RayJackONE #OpticalParticleSizing #illumination #scattering #MieTheory 

Diamond powder Grade D90 image under microscope

Happy Friday! Enjoy this micrograph of a used spark plug anode, showing corrosion, wear, and cracking on the surface. This photo was taken using a scanning electron microscope in backscatter mode, at 450x magnification. #MASTest #MaterialsScience #MaterialsTesting #Micrograph Image description: Grayscale image taken with a scanning electron microscope in backscatter mode, showing corrosion, wear, and cracking on the surface of a used spark plug anode. This image was taken at 450x magnification.

Nonlinear Thomson scattering: velocity asymmetry inherent in electron figure-8 motion https://lnkd.in/exqBsNvG

Here is another one from the series of posts that nobody asked for. Related to the previous post about the slit nozzle, here is an interesting application. Place 100 microns wire (or whatever diameter you want) longitudinally in the middle of the slit nozzle. As shown in the figure, the wire modulates the density profile transversely and generates a profile that looks like a waveguide in one plane. The applications are various: for instance, you can use it to guide the laser and the electron beam in one plane and reduce the electron beam pointing in the direction of the polarization of the laser. Another possible application is the enhancement of the betatron emission when the laser beam is injected at a small angle relative to this waveguide. If you have more ideas for the experiment, please leave comments. Be nice and share.

Diamond powder Grade D30 image under microscope

📢 𝗘𝗻𝗵𝗮𝗻𝗰𝗲𝗱 𝗦𝗶𝘇𝗲 𝗥𝗲𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗗𝗟𝗦 𝗙𝗹𝗼𝘄 𝗠𝗼𝗱𝗲 🎥 Unlock the next level of particle size analysis with our latest video, "Enhanced Size Resolution with DLS Flow Mode." Dive deep into how Dynamic Light Scattering (DLS) Flow Mode can revolutionize your particle characterization, providing unparalleled resolution and precision. Watch now to see how DLS Flow Mode can benefit your research and improve your analysis outcomes. #ParticleAnalysis #DLSTechnology #ResearchInnovation #SizeResolution #DynamicLightScattering #Melchers #NexusAnalyticsindonesia

Here, 42 Technology explains why the Gamut Ring plot is the new standard for display color evaluation and should always be used, especially for laser displays. 🔽 #LaserFocusWorld #Displays #Photonics

How do you measure your film thickness?

recognised by crystal structure the ultimate method throw out 10X and Microscope.