Oct 16 – 20, 2016
Europe/Zurich timezone

Development of a high-brightness muonium beam

Oct 18, 2016, 6:02 PM


Mr Narongrit Ritjoho (PhD at Paul Scherrer Institut)


Muonium is the bound state of an antimuon with an electron (mu+e-). Muonium is an ideal tool to perform precision measurements of fundamental parameters. This poster presents our ideas to develop a high-brightness muonium source at the Paul Scherrer Institut (PSI). The muonium beam will be produced by deflecting a slow, high-brightness muon beam (currently under development by muCool collaboration) into the vertical direction and letting it impinge on a thin film of superfluid helium at 100 mK. Inside the superfluid helium muonium is formed with high efficiency and once it diffuses to the surface emitted into vacuum as a beam. Such a high-brightness muonium source enables various interesting measurements as , e.g., the detection of the 1s-2s energy interval of muonium or the gravitational interaction of muonium – a test of the gravitational interaction of antimatter and 2nd generation particles.

Primary author

Mr Narongrit Ritjoho (PhD at Paul Scherrer Institut)


Aldo Sady Antognini (Paul Scherrer Institut) Andreas Knecht (Paul Scherrer Institut) Klaus Stefan Kirch (Paul Scherrer Institut)

Presentation materials

There are no materials yet.