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Trinitite

A bit of history: what is Trinitite ? The trinitite (also known as glass of Alamogordo or atomite) is the name given to the glassy residue formed in the desert, near Alamogordo in New Mexico, on the site of the explosion occurred on July 16, 1945, of the first nuclear …

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Muons, Again !

Introduction Muons are interesting particles. From all the space the cosmic rays reach the earth. As soon as they enter the upper layers of the atmosphere and interact with the nuclei of the gas molecules, they produce many muons. The muons, heavy cousins ​​of the electron, are unstable particles that …

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Raspberry Pi Logger

Introduction It’s time to use the Raspberry Pi ! We do not spend words to describe this single-board linux computer : on the Internet there are hundreds of excellent sites / information on this card, so refer to the documentation that you can easily find online. In this post we …

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Fast LED Light Pulser & SiPM

Introduction Generating ultra-short pulses (in our case pulses of light) is not simple. There are advanced techniques to produce ultra-short light pulses, in the femtosecond or even attosecond range , but they require sophisticated lasers and equipment that are not within the reach of a “home” experimenter. Not to mention …

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High Voltage – Low Noise Module

A low-noise medium-high voltage generator is always of great use in the laboratory : it is used for the powering of photomultiplier tubes, geiger counters, ionization chambers, solid state sensors for radiation, etc …. However the construction of a component of this type is not simple. An example of a …

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Chaos

Introduction Today, at least for mathematicians and physicists, the word chaos has a rather precise and deterministic meaning. Chaos, or deterministic chaos, is the science that studies the great effects caused by small causes. Or, in more rigorous terms, it is the science that studies the dynamics of non-linear systems …

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Piezoelectricity and Piroelectricity

(Piezoelectric floor) Piezoelectricity Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress. The word piezoelectricity means electricity resulting from pressure. French physicists Jacques and Pierre Curie discovered piezoelectricity in 1880. The piezoelectric effect results from the linear electromechanical interaction between the mechanical …

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Cadmium zinc telluride CZT based gamma-ray detector

(Image from Kromek) Introduction Cadmium zinc telluride CZT is a room temperature semiconductor that directly converts x-ray or gamma photons into electrons and holes. It is a unique semiconductor compared with silicon and germanium detectors, in that cadmium zinc telluride CZT operates at room temperature and can process >100 million photons …

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Alpha Detector with Micod CSA-SA

In this post we want to test the alpha radiation detector built by “AlexDetector” and marketed by the russian company Micod with the related front-end electronics, consisting of a charge preamplifier (CSA) and shaping amplifier (SA). Introduction Alpha Spectrometry is a fascinating technique because it allows you to have accurate information about …

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Photodiode and CsI(Tl) Scintillator with Micod CSA-SA

Introduction In this post we describe a silicon photodiode coupled to a CsI(Tl) scintillator used as radiation detector. This application is well known and we have covered a similar field in this post : Si-PIN Photodiode with Micod CSA-SA, now we would like to test the apparatus built by Micod (a …

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