We apply novel bunch forms for efficient laser cooling of fast stored ion beams at the Heidelberg Test Storage Ring. Be-9(+) ions are longitudinally confined in barrier buckets providing free motion of the cooled ions inside the bucket (quasi-coasting beam). The implementation of laser cooling in barrier buckets is described, and longitudinal dynamics of laser cooling is compared to electron cooling. With laser cooling, longitudinal temperatures far below 1 K are reached, corresponding to a momentum spread of Delta p/p < 10(-6). When the thermal energy becomes sufficiently small, significant modifications of the ion distribution due to space-charge effects are observed.

Laser cooling of fast stored ions in barrier buckets

LENISA, Paolo;
2000

Abstract

We apply novel bunch forms for efficient laser cooling of fast stored ion beams at the Heidelberg Test Storage Ring. Be-9(+) ions are longitudinally confined in barrier buckets providing free motion of the cooled ions inside the bucket (quasi-coasting beam). The implementation of laser cooling in barrier buckets is described, and longitudinal dynamics of laser cooling is compared to electron cooling. With laser cooling, longitudinal temperatures far below 1 K are reached, corresponding to a momentum spread of Delta p/p < 10(-6). When the thermal energy becomes sufficiently small, significant modifications of the ion distribution due to space-charge effects are observed.
2000
U., Eisenbarth; B., Eike; M., Grieser; R., Grimm; I., Lauer; Lenisa, Paolo; V., Luger; M., Mudrich; U., Schramm; D. SCHWALM AND M., Weidemuller...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/494789
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