A NEW PLUNGER DEVICE FOR INVESTIGATING THE EFFECTS OF DEFORMATION ON PROTON EMISSION RATES VIA LIFETIME MEASUREMENTS

Taylor M. J., Cullen D. M., Smith A. J., McFarlane A., Twist V., Procter M. G., ...Daha Fazla

6th International Symposium on Exotic Nuclei (EXON), Vladivostok, Rusya, 1 - 06 Ekim 2012, ss.347-356 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Vladivostok
  • Basıldığı Ülke: Rusya
  • Sayfa Sayıları: ss.347-356
  • Ankara Üniversitesi Adresli: Hayır

Özet

A new plunger device has been designed and built to measure the lifetimes of unbound states in exotic nuclei beyond the proton drip-line. The device is designed to work in both vacuum and dilute-gas environments made possible through the introduction of a low-voltage piezoelectric motors. The differential plunger for unbound nuclear states, DPUNS, will be used in conjunction with the gas-filled separator RITU and the vacuum separator MARA at the accelerator laboratory of the University of jyvaskyla, Finland, to measure the lifetimes of excited states with low population cross-sections. This is achieved by eliminating the need for a carbon foil to isolate the helium gas of RITU from the beam line thus reducing the background from beam-foil reactions. The plunger will be used to address many key facets of nuclear structure physics with particular emphasis on the effect of deformation on proton emission rates.