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A microwave beam can also be easily generated with the HB100 module which is mainly used as a motion sensor . It is a motion sensor module in the microwave X-band, it has a resonance oscillator and a pair of microstrip patch type antennas , this sensor is ideal for …

With the help of the microwave generator, described in the post Gunnplexer & Microwaves, one can easily do some “optical” experiments to describe the behavior of these 3cm electromagnetic waves.

In physics, the polarization of electromagnetic radiation is a characteristic of the electromagnetic waves and indicates the oscillation direction of the electric field vector during the wave propagation in space – time (the magnetic field will be polarized along the direction orthogonal to that of the electric field and to the …

The Gunnplexer system is a combination of a microwave oscillator (based on the Gunn diode) with a mixer (Schottky diode). There are some variations on this architecture, but each Gunnplexer system has at least these components. In the Gunnplexer operating at 10 GHz and at higher frequencies, the entire microwave system …

A PIN diode (p-type, intrinsic, n-type diode) is a diode with a wide region of intrinsic semiconductor material (undoped) contained between a p-type semiconductor and an n-type semiconductor. The advantage of a PIN diode is that the depletion region exists almost completely within the intrinsic region, which has a constant …

Besides that with the source Americium 241 at 60keV (as described in the post DIY XRF Spectrometry) the XRF technique is also feasible with other gamma excitation sources such as the isotope Na22 which emits at 511keV. In this case the sample is positioned between the detector and the source, as …

  Abstract : In this post we deal with diffraction. Diffraction is a physical phenomenon associated with the propagation of the waves, the effects of which are relevant when a wave encounters an obstacle or a slit whose dimensions are comparable or lower than its wavelength.

In this post we propose to highlight the quantum nature of light by means of the photon counting technique. For the light detection has been used a photomultiplier tube, which is able to detect a single photon. A dimmed LED driven by an ultra-short pulse has been used as light source.

We propose, in this post, the use of XRF spectrometer, previously described, for the analysis of some minerals in order to identify the contained elements.

We propose, in this post, the use of XRF spectrometer, described previously, for the elemental analysis of some significant samples of elements.

X-ray fluorescence (XRF) is the emission of characteristic “secondary” (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science and archaeology.

Quantum entanglement is a physical phenomenon that occurs when pairs or groups of particles are generated or interact in ways such that the quantum state of each particle cannot be described independently — instead, a quantum state may be given for the system as a whole.

The Silicon Photomultiplier (SiPM) can be conveniently coupled to a scintillator crystal to obtain a gamma radiation detector. The SiPM has already been presented in the post : Silicon Photomultiplier.

As an example of application of SiPM we realize a simple device for detecting alpha particles , much like the famous spinthariscope .

The silicon photomultiplier (SiPM) is a radiation detector with extremely high sensitivity, high efficiency, and very low time jitter. It is based on reversed biased p/n diodes, it can directly detect light from near ultra violet to near infrared, and it is employed in all those applications where low light/radiation …