PhD ceremony: Mr. W.L. Kruithof, 16.15 uur, Academiegebouw, Broerstraat 5, Groningen
Dissertation: Laser trapping of sodium isotopes for a high-precision B-decay experiment
Promotor: prof. H.W.E.M. Wilschut
Faculty: Mathematics and Natural Sciences
This thesis describes two crucial steps towards the realization of a high-precision test of the Standard Model of particle physics at low energy. The time-reversal symmetry of the Standard Model can be tested by measuring correlations between the particles emerging from decaying radioactive atoms. At the Kernfysisch Versneller Instituut such a test can be performed with radioactive 21Na (sodium) atoms. To achieve a high accuracy, the atoms are brought to standstill by trapping them with laser light. To reach the required precision in the final measurement, the online produced 21Na ions have to neutralized and trapped with 1% efficiency. In a second step, the trapped 21Na atoms need to be transferred with near unit efficiency to a second atom trap, which provides a shielded environment for the correlation measurements. As this thesis shows, the envisioned efficiency of both processes is within reach of the present setup.
You can vote until October 5.
Dean Knoester leaves Groningen science faculty January 1, 2022
The grant of EUR 921,000 is for his project ‘Multi-scale assessment of liquid metal embrittlement at steel-zinc interfaces (MUSCLES).
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