Reconstruction of HIPPO Supersonic Gas Jet Target
Abstract
HIPPO, a supersonic windowless helium gas jet target, is designed and reconstructed as the target for the beam from the 5 MeV 5U electrostatic accelerator located at the Nuclear Science Laboratory (NSL) of the University of Notre Dame. Connected to the target area, St. George recoil separator has been developed to perform, in inverse kinematic, radiative capture experiments of interest to nucleosynthesis. Inverse kinematics, here, means that a heavy ion beam is bombarding a lighter nuclear target. The nozzle-catcher system and chamber have been designed and prepared. A differential pumping system is set up to lower the pressure in the target chamber down to 10-7 torr in the beamline. The advantages of the windowless design and advantages that gas target compared with the solid target will be discussed. An Arduino based system is set up and now we are able to control the pumps with the touch screen. We have performed the pressure measurement and got the thickness data. Initial experiments are discussed along with plans for future use at the NSL.
This work is supported by the National Science Foundation and the University of Notre Dame.- Publication:
-
APS March Meeting Abstracts
- Pub Date:
- 2019
- Bibcode:
- 2019APS..MARG70011W