Comparative analysis of vver-s reactor poly-sell physical parameters with different accident tolerant fuel loads

Scintillation Detector

Students: Bozorboyev Shodlik

Yuldosheva Nilufar

Group: F-1902

Teacher: Mahmudov S
National University of Uzbekistan – NUU

How does a scintillation detector work?

In scintillation detectors the material of the detector is excited to luminescence (emission of visible or near-visible light photons) by the absorbed photons or particles. The number of photons produced is proportional to the energy of the absorbed primary photon. The light pulses are collected by a photo- cathode.

What is a scintillator used for?

Scintillators are materials that absorb energetic radiation such as gamma rays, X-rays, or neutrons and convert that energy into short bursts of visible photons. These photons are then converted into electrical pulses by photo-detectors.

How does a scintillation detector detect radiation?

A scintillation counter is an instrument for detecting and measuring ionizing radiation by using the excitation effect of incident radiation on a scintillating material, and detecting the resultant light pulses.

What is the basic principle of scintillation?

In scintillation counting, the sample is mixed with a material that will fluoresce upon interaction with a particle emitted by radioactive decay. The scintillation counter quantifies the resulting flashes of light
In scintillation counting, the sample is mixed with a material that will fluoresce upon interaction with a particle emitted by radioactive decay. The scintillation counter quantifies the resulting flashes of light.
When talking about radiation detection instruments, there are three types of detectors that are most commonly used, depending on the specific needs of the device. These are: Gas-Filled Detectors, Scintillators, and Solid State detectors.

What are the advantages of scintillation detector?

Efficiency. The advantages of a scintillation counter are its efficiency and possible high precision and counting rates. These latter attributes result from the extremely short duration of the light flashes, from about 10-9 (organic scintillators) to 10-6 (inorganic scintillators) seconds.
Efficiency. The advantages of a scintillation counter are its efficiency and possible high precision and counting rates. These latter attributes result from the extremely short duration of the light flashes, from about 10-9 (organic scintillators) to 10-6 (inorganic scintillators) seconds.
There are two commonly used types of scintillators, inorganic crystals and organic scintillators.
Scintillation materials exist in many physical forms, including crystals, glasses, powders, ceramics, plastics, liquids, and gases. The SMRC concentrates primarily on inorganic single crystals, polycrystalline ceramics, and thin films.
A thin scintillator is an excellent choice for low-energy gamma rays and high-energy beta particles. The ray or particle will be absorbed within the thin scintillator and the light produced by this interaction will be able to pass through the remaining thickness to allow the gamma ray to be detected.
Scintillation: Emission of photons following the excitation of atoms and molecules by radiation (γ, or particle radiation). Fluorescence: emission of light by a substance that has absorbed light or another electromagnetic radiation of a different wave length. In most cases the emitted light has a longer wavelength.