CRYRING@ESR - Facility for Antiproton and Ion Research

22 Chapter 6. Proposed Construction Cycle
in the 2nd half of 2014 and many acceptance tests have to be prepared and performed. At
this time the commissioning of the CRYRING@ESR facility should already be finished and
first experiments could be accomplished by operating the facility under the responsibility
of the Atomic Physics (AP) department.
6.2 CRYRING Disassembly and Transport
According to the LSR-TDR (Danared et al. [23]), the MSL/SU will deliver the following items:
For the Low energy injection beam line
• An ion source platform for singly charged ions, with all power supplies including a 90 ◦
analysing magnet without power supply.
• Electrostatic quadrupole doublets and triplets with HV-supplies.
• An RFQ accelerator with 108.48 MHz rf-generator including a 108.48 MHz debuncher
cavity without rf-generator.
• Two dipole and nine quadrupole magnets without power supplies.
• All necessary beam diagnostics (Faraday cups and luminescent screens).
• All vacuum chambers and pumps.
• All mechanical supports.
For CRYRING as modified for FAIR and FLAIR
• Ring magnets: dipole, quadrupole, sextupole, correction magnets with all power converters
• Fast and slow beam injection and extraction systems consisting of two septum magnets,
two fast kicker magnets, a fourfold electrostatic bumper system for multiturn injection,
and an electrostatic septum for slow extraction together with all necessary power supplies
except that for the injection septum magnet. The latter must be equipped with a pulsed
current supply, if the magnetic rigidity of the injected ion beam is increased from 0.8 Tm
to 1.4 Tm, as desirable for the injection of the ESR beam.
• Acceleration system: drift tube and wide band rf-generator for a ramp rate of 1 T/s.
• Electron cooler with all power supplies.
• UHV components: vacuum chambers, valves, NEG and ion pumps, baking jackets, including
replacement of old ones using ceramic paper. Ion pumps need to be equipped with
new power supplies.
• Beam diagnostics (faraday cups, fluorescent screens, electrostatic pick-ups, Schottky pickup,
ac and dc beam current transformers, beam-profile monitors).
• Cables as far as dismantling and transport are economically favorable.
• All mechanical supports.
MSL/SU has incurred also the liability for organizing and financing the disassembly and
appropriate transport of all equipment to GSI. However, the participation by GSI staff members
allocated for the later reinstallation seems to be reasonable. They could help to conserve UHV
cleanliness during disassembly, to suitably mark items for later identification, and to protect
sensitive parts from damage during transport.
The CRYRING shall not be decomposed into small single components. Complete subsections
(straight sections between bending magnets) of the ring could be transported after removal of
cables and pipes. In this way, considerable re-assembly work time cost would be saved. In
addition, in order to minimize the reinstallation cost, the technical infrastructure might be
reused to a large extent. Cables between power converters and magnets, distribution lines and
local connections for cooling water and pressurized air, shall be disassembled and transported
in an appropriate way.