Task No

Short Title

Descriptive Title

Leading Participant and task leader

Short description and specific objectives of the task

1

Management

Management of the CNI

GSI

Jürgen Eschke

Management of the Construction Consortium, controlling, reports, auditing

2

SIS18-1

Two-harmonic cavity

GSI

Peter Hülsmann

New RF accelerating cavity based on the novel magnetic alloy materials for operation at harmonic number h=2 (f = 0.43 to 2.8 MHZ) to provide the necessary accelerating voltage for SIS18 injector operation with high intensity heavy ion beams in a fast operation mode with four cycles per second.

3

SIS18-2

UHV vacuum upgrade

GSI

Harmut Reich-Sprenger

Up-grade of the vacuum system with new magnet chambers, an improved bake-out system, and NEG and cryo-pumping to reach a static base pressure of 2∙10^-12 mbar and to keep the dynamic pressure below 1∙10^-11 mbar during operation with the highest intensities of heavy ion beams needed for FAIR.

4

SIS18-3

Collimator system

GSI

Peter Spiller

Construction and installation of 12 new collimators with wedge-shaped scrapers and cryo-pumps to localize beam losses and to keep the desorbed atoms and molecules away from the ion beams.

5

SIS18-4

Injection/extraction upgrade

GSI

Udo Blell

Construction and installation of a new electrostatic inflector septum for operation at high field strength with a new high voltage supply and of a new extraction septum magnet with enlarged aperture to prepare the SIS18 for injector operation with protons and low-charge ion heavy ion beams like U²⁸⁺ ions in FAIR

6

SIS18-5

Beam profile monitor

GSI

Peter Forck

Construction and installation of a new fast beam profile monitor for turn-by-turn profile measurements to monitor x-y beam emittances; especially to support a new injection scheme for minimum beam loss using  skew quadrupoles as well as beam preparation before fast extraction and transfer into the SIS100.

7

SIS18-6

Charge separator

GSI

Winfried Barth

Construction and installation of a new charge separator in the beam transfer line from the Unilac to the SIS18 to provide efficient charge separation for the injected ion beams with minimum emittance growth.

8

HADES1

Resistive Plate Counter Time of Flight Wall (RPC)

LIP-Coimbra

Paulo Fonte

Construction of a high-granularity and large area time of flight wall for the HADES spectrometer based on Resisitive Plate Counters technology. Production of fast,  wide-band, analog electronic and multi-hit digital electronic with the aim to achieve time resolution better than 100 ps and feasible to run in a high multiplicity environment of heavy ion collisions.    

9

HADES2

Forward Hodoscope (FH)

U-Frankfurt

Herbert Ströbele

The extension of charged particle detection in the HADES spectrometer into the very forward direction  for the determination of the event plane in collisions of heavy ions by means of a high granularity scintillator Forward Hodoscope

10

HADES3

Data Acquisition and Trigger upgrade (DAQ/Trigger upgrade)

GSI

Michael Traxler

A very powerful DAQ and a selective trigger system is essential  to provide the bandwidth and data reduction capabilities for rare dielectron events of interest. Upgrade of the presently running system will allow to improve high-rate DAQ capability and Trigger selectivity.

11

R3B

Superconducting Large Acceptance Dipole

CEA

Jean-Eric Ducret

Construction of the R3B superconducting dipole magnet and installation at GSI

12

Overall Construction

All other construction tasks within the project duration period

GSI

Jürgen Eschke

In the project duration period, the civil construction of many buildings, tunnels for synchrotrons storage rings and transfer beamlines will begin. In addition series-production of components (e.g. super conducting magnets) of the accelerator complex will also start.