English Posts

We describe, in this post, the use of a MMIC device (Monolithic Microwave Integrated Circuit) as the front-end electronics for the amplification of the signals generated by a photomultiplier. This type of device has the advantage of offering a very wide bandwidth (up to 2 GHz in our case), low …

” … The muon—the short-lived cousin of the electron—could be the key to understanding relationships between other fundamental particles. And it holds a mystery all its own. In the 1930s, scientists thought they had matter figured out. Matter was atoms; atoms were protons, neutrons and electrons; and that was that. Then they discovered the …

In this post we describe a particular characteristic curve of a vacuum tube that allows to estimate the size of an atom of a noble gas. The Ramsauer – Townsend effect consists in the reduction of the cross section when electrons with around 1 eV energy collide atoms of inert gases …

We continue the series of posts about PSoC describing the application of the coincidence detection circuit  to the case of cosmic rays. These have been treated in numerous articles and so here we simply expose the results we obtained using the PSoC-based coincidence detector. The system has been connected to two SiPM detectors …

We continue the post “PSoC Coincidence Detector – I” describing the application of the coincidence detector system for the detection of radiation produced by the decay of isotope Na22. This topic has already been addressed in the following previous post : Positron Annihilation Entangled Gamma Photons For full details about positron and entanglement …

In this post we describe an application of PSoC component having the aim to realize a high-precision coincidence detection circuit  to be applied in the detection of nuclear signals. PSoC (Programmable System-on-Chip) is a family of microcontroller integrated circuits by Cypress Semiconductor. These chips include aCPU core and mixed-signal arrays of …

In this post we describe our visit to the telescope of Ekar peak in Asiago : 182cm main mirror, the largest on the Italian territory. The telescope is located at Ekar peak (about 1400 mslm) near the town of Asiago but away from artificial light sources. In the picture below …

Porphyrins are a group of heterocyclic macrocycle organic compounds, composed of four modified pyrrole subunits interconnected at their α carbon atoms via methine bridges (=CH−). The parent porphyrin is porphin, and substituted porphines are called porphyrins. The porphyrin ring structure is aromatic, with a total of 26 electrons in the …

The corpuscular nature of the light can be detected by means of the photon counting technique, realized with a photomultiplier tube. The “photon counting” technique has already been described in the post Light as a Particle, in which we used a special photon counter and a pulsed light source. In this …

In this post we propose the construction of a cosmic rays Cherenkov detector based on a radiator made of a transparent acrylic plastic block. In this site we have already described a water Cherenkov detector, in which the radiating material was formed by the water contained in a dewar vessel. For the …