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Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 37: Instrumentation IX

HK 37.6: Talk

Wednesday, March 16, 2016, 15:30–15:45, S1/01 A3

Further development of NEPTUN photon tagging facility — •Dmytro Symochko, Michaela Arnould, Thomas Aumann, Martin Baumann, Norbert Pietralla, Heiko Scheit, Diego Semmler, and Christopher Walz — Institut für Kernphysik, Darmstadt, Germany

The low-energy photon tagging facility NEPTUN at the superconducting Darmstadt linear accelerator (SDALINAC) has been constructed with the aim to study

the photoabsorption cross section of the nuclei in the energy regions of Pygmy Dipole and Giant Dipole Resonances. Recently it went through the series of commissioning runs, which proved the concept and the ability of NEPTUN to tag the discreet nuclear states. Also, based on the results of the commissioning, major upgrade was developed to optimize the setup. Upgraded tagger will be able to operate with 60 MeV electron beam and will have extended focal plane with energy bite of more than 10 MeV. After completion of upgrade it will be possible to perform total dipole response measurement in the energy region 5-35 MeV for one target using only 2-3 settings of the spectrometer. Presentation will focus on the analysis results of commissioning runs and details of the proposed upgrade plan.

Supported by DFG (SFB 634).

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