Place: GSI Helmholzzentrum für Schwerionenforschung GmbH , Planckstr. 1, 64291 Darmstadt, Germany
Duration: 3 days
Date: 13 - 15 March 2018
Participants: 4 (Maximum 5)
The participants will gain practice in operating the GSI standard oven with the CAPRICE-type ECRIS at the ECRIS test bench. The arrangement of the CAPRICE ECRIS and the LEBT at this test bench is identical to that at the High Charge State Injector (HLI) at the GSI accelerator facility.The assembling procedure of the oven will be demonstrated in the oven service area. After filling the oven with natural Ni material a pre-processing will be done by controlled melting of the Ni material in an external vacuum recipient. After cooling down to room temperature the oven remains under vacuum by means of a lock system during transport to the ion source. This approach further allows the mounting of the oven and insertion into the ion source without breaking the vacuum.The participants will gain practice in the start-up process of the ion source and in the operation and the optimization for different charge states.
Plan of Activities:
After a mandatory safety instruction the participants will get an introductive seminar on metal ion beam production with the ECRIS.In the dedicated oven service area the components of the GSI Standard oven and the GSI high temperature oven including ancillary parts, special materials and tools will be demonstrated. The participants can practice the mounting of parts by themselves.One or two completed oven will be inserted in an external vacuum recipient for preheating and conditioning over night!
Prior to filling the oven with the sample material it is cooled down to room temperature. Then the in situ melting process is performed. After cooling down again the oven remains under vacuum and will be transported and inserted into the ECRIS using the lock system.Subsequently the start-up of the source will be performed after heating the oven above the Curie temperature of Ni. A controlled adaptation of the ion source parameters and optimization will follow.
The optimization of different charge states of the Ni beam continues. Mass/charge spectra will be recorded to analyze the charge state distribution (CSD). Finally time will be reserved for discussions about oven techniques, tips and tricks and possible further developments.
Hands-On Training Presentation