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Stored and Cooled Ions Division
 
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TRIGA-TRAP

 

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Off-line ion production

The MiniRFQ Laser Ablation Ion Source

Since the experiment is located within the controlled area of the TRIGA-Mainz research reactor, radioactive samples of sufficiently long-lived nuclides as well as of heavy elements above uranium can be measured off-line.

For off-line ion production we developed at TRIGA-Trap a novel laser ablation ion source, where the laser ablation target [1] sits in a gas-filled miniature radio-frequency quadrupole (MiniRFQ) [2].

The laser ablation process is driven by a pulsed, frequency-doubled Nd:YAG laser, which can deliver pulses with a length of 5 ns and energies of up to 12 mJ at a wavelength of 532 nm, at arepetion rate of 15 Hz.

The MiniRFQ Laser Ablation Ion Source for off-line ion production.
Fig. 1: The MiniRFQ Laser Ablation Ion Source for off-line ion production. A pulsed Nd:YAG laser beam is injected into the vacuum chamber and hits a target that is mounted on the opposite side inside the MiniRFQ. Ions are extracted must be bent 90 deg. towards the experiment.

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References

[1]   D. Renisch et al., Nucl. Instrum. Methods A 676, 84–89 (2012) externer Link
[2]   F. Schneider et al., Eur. Phys. J. A 51, 89 (2015) externer Link