neutron guide system NEAT
Helmholtz Zentrum Berlin (HZB) is in the process to rebuild a time-of-flight spectrometer NEAT on Flight Path NL-1b at the BER-II. The upgrade includes the neutron guide system, a new chopper system and a new secondary spectrometer with large detector angle coverage. The neutron guide system foresees exchangeable guide end-pieces for better focus of the neutron beam for various sample sizes.
Part of the neutron guide is already installed and includes the extraction part of the neutron guide and a curved guide section that starts in-pile at 1.5 m from the cold source and end at approximately at 40 m from the cold source. A non-curved linear section is installed afterwards until the position of 50 m from the cold source.
In this procurement the contractor is asked to provide the part of neutron guide system for the flight path NL-2new starting from 50 m from the cold source to the sample position at 64 m. The guide system shall also include exchangeable focusing guide end-pieces of about 4.7 m length and the mechanic system to enable the exchange. The guide and mechanic system shall be integrated within existing chopper and detector chamber design.
In accordance with this specification the procurement will include:
1. Preliminary and final designs of the guide system and exchange chambers with HZB reviews and approvals;
2. Fabrication and testing;
3. Shipping to HZB;
4. Assembly at HZB ( unpacking, set up, assembly, alignment support, testing, and cleanup);
5. Alignment and Installation support;
6. Participation in and supporting acceptance tests.
The scope of work described here comprises also an installation support. HZB wants the HZB personnel to be trained in the installation and alignment procedures. This is important since the HZB personnel has to be capable to reinstall the neutron guide if the guide or an element of the guide has to be removed or replaced.
Deadline
Die Frist für den Eingang der Angebote war 2013-04-11.
Die Ausschreibung wurde veröffentlicht am 2013-02-19.
Anbieter
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Geschichte der Beschaffung
| Datum |
Dokument |
| 2013-02-19
|
Auftragsbekanntmachung
|
| 2013-08-13
|
Bekanntmachung über vergebene Aufträge
|