BielefeldGED:Equipment: Difference between revisions
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The reconstructed ''Balzers Eldigraph KD-G2'' (one of only two still existing ones worldwide) is presently in use in the laboratory. | The reconstructed ''Balzers Eldigraph KD-G2'' (one of only two still existing ones worldwide) is presently in use in the laboratory. | ||
The most recent | The most recent papers <bib id="BergerZFN2009" /> and <bib id="ReuterZNB2016" /> contain lots of details about this improved gas electron diffractometer. | ||
==== Current state ==== | ==== Current state ==== | ||
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== References == | |||
<biblist /> | |||
== References == | == References == | ||
<biblist /> | <biblist /> |
Revision as of 12:48, 12 January 2016
This page contains description of equipment used by GED group in Bielefeld.
News
Date | Record |
---|---|
13 May 2015 | A valve for separation of the diffraction and mass-spectrometer chambers has been built. |
22 May 2014 | Hiden PIC 1000 series mass-spectrometer has been installed. |
28 Feb 2014 | A new booster pump (Edwards EH500) has been installed. |
20 Dec 2013 | A new diffusion pump (Edwards Diffstak 250/2000P) has been installed. |
Instrument
The reconstructed Balzers Eldigraph KD-G2 (one of only two still existing ones worldwide) is presently in use in the laboratory. The most recent papers <bib id="BergerZFN2009" /> and <bib id="ReuterZNB2016" /> contain lots of details about this improved gas electron diffractometer.
Current state
History
Pumps
Backing Pumps
Backing (fore-vacuum) pumps: Edwards x05 Scrollpump Oilfree, Edwards E2M80 oil pump and Edwards EH500 booster pump. Our last oilfree pump worked 48822.8 hours. On the pictures is the new one.
Diffusion Pumps
New diffusion pump (Edwards Diffstak 250/2000P), installed in December, 2013:
Old diffusion pump:
Turbo Pumps
Turbo pump (Edwards EXT70H) attached to the electron gun:
Sector
A sin2-type sector (15 cm in diameter, common formula is A*sin2(r/B)) is used.
Inlet Systems
Room-temperature Nozzle
Medium-temperature Nozzle
This nozzle has been constructed for evaporation of compounds in a temperature range from 25 to 380 °C. However, it has also been successfully used for low temperatures below -15 °C.
Cold Trap
Cold trap designed for using liquid nitrogen and installed from the opposite to the inlet system side.
In-line mass-spectrometer
A Hiden mass-spectrometer (PIC 1000 series, up to 2500 amu) with EPIC ion counting detector is attached to the electron diffraction unit.
Detection system
Imaging Plates (IP) are used for recording diffraction patterns. IPs are scanned with a Fuji BAS-1800II scanner and the signal is deleted using an eraser.
References
<biblist />
References
<biblist />