Wednesday, December 2, 2020

Didactic Kits for University of Fribourg

At the Faculty of Science and Medicine of the University of Fribourg, they teach the next generation of scientists and doctors, with a particular focus on life sciences, biomedicine, and nanomaterials. They train them to face the future challenges of our society.

During Q1/2012 they will be receiving two new Educational Kits & Experiments for training students with state-of-the-art didactic tools from CAEN, world leader in nuclear and particle physics instrumentation.

SP5700-EasyPET in this tutorial, is a simple, user friendly and portable didactic PET system developed for high-level education, which allows exploring the physical and technological principles of the conventional human PET scanners, using the same basic detectors of state-of- the-art systems. The Positron Emission Tomography (PET) scanner is the state-of-the-art medical imaging system, capable of providing detailed functional information of physiological processes inside the human body. Functional imaging has a great impact in cancer diagnostics, monitoring of therapy effects and cancer drug development. The underlying principle to PET systems is the detection of high energy radiation emitted from a chemical marker, a molecule labelled with a radioisotope, administered to a patient. The radioisotope emits positrons which, after annihilating with atomic electrons, result in the isotropic emission of two photons back to back with an energy of 511 keV. The two photons are detected by a ring of detectors, which allows a pair of them to detect two back to back photons in any direction.

Part of the extended version, the SP5701-EasyPet KIt is the DT5770, a compact portable Digital MCA for Gamma spectroscopy. It is suited for high energy resolution semiconductor detectors, like HPGe and Silicon Drift Detector, connected to a Charge Sensitive Preamplifier. The unit can also properly operate directly connected to a PMT with inorganic scintillators (e.g. Nal or Csl scintillators), provided exponential pulse shape and decay time above 200 ns. It integrates analog front-end with programmable gain and possible AC coupling.

Features

  • Gamma Spectroscopy and System Linearity
  • Positron Annihilation Detection
  • Nuclear Imaging
  • Two-dimensional Reconstruction of a Radioactive Source
  • Source Spatial Resolution
  • Efficiency measurements
  • User Friendly Control SW with Graphical User Interface

Cosmic rays are energetic, subatomic particles constantly bombard the Earth’s atmosphere from all directions. Nowadays, new technological solutions are investigated by scientists to improve their knowledge in this field.

Cosmic Hunter is a new educational tool through which CAEN wants to inspire young students and guide them towards the analysis and comprehension of cosmic rays. Cosmic Hunter, Silicon Photo-Multipliers (SiPM) based, is composed of one detection – coincidence unit together with up to three plastic scintillating tiles.

Muons detections, flux estimation, shower detection and more are allowed thanks to a flexible system geometry.

Experiments
  • Cosmic Muons detection
  • Coincidence (single, double and triple)
  • Zenit angle dependance
  • Cosmic Shower Detection

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