Self-Confining Radioactive-isotope Ion Target (SCRIT)

5 Sep 2023

Context:

 Researchers in the RIKEN Nishina Center for Accelerator-Based Science, in Japan, have demonstrated a set-up that can use electron scattering to ‘see’ inside unstable nuclei, using SCRIT technique.

  • An electron scattering experiment is a type of experiment that uses electrons to probe the structure of matter. For Example: 
    • Rutherford model Experiment: Based on how the rays were deflected by atoms in the gold foil, it was figured out that every atom has a dense centre where its mass and positive charge are concentrated.
    • Scientists involved in it were Ernest Rutherford, Ernest Marsden, Hans Geiger.

About Self-Confining Radioactive-isotope Ion Target (SCRIT):

  • Objective: To probe the internal structures of short-lived exotic nuclei by electron scattering. 
    • It employs a novel ion-trapping technique to prepare a target of exotic nuclei for electron scattering on an energetic electron beam 
  • It uses an electron storage ring to trap radioactive isotopes. 
    • This allows for electron scattering experiments to be performed on unstable nuclei, which are not possible with traditional fixed targets.
  • Advantages: The SCRIT technique has several advantages over traditional fixed targets such as: 
    • It allows for experiments to be performed on unstable nuclei, which have a very short half-life and would decay before they could be used in a fixed target experiment. 
    • It can provide a much higher luminosity than a fixed target experiment, which means that more data can be collected in a shorter amount of time. 
    • It is relatively inexpensive to operate, making it a more cost-effective option for electron scattering experiments.
  • Applications: It is expected to be used in a variety of experiments in the future, including:
    • Studies of the structure of nuclei, the dynamics of nuclear reactions, and the astrophysical origins of elements.

News Source: The Hindu

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