BielefeldGED:Equipment: Difference between revisions
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==== History ==== | ==== History ==== | ||
<gallery heights=200px widths=200px mode="traditional"> | |||
File:Bielefeld_GED_Instrument_Apr2006.jpg|GED instrument in April 2006 (Uni-Münster) | |||
File:Bielefeld_GED_Instrument_Jun2007.JPG|The apparatus with new gun, power supply and recording system (image plates), Jun 2007 | |||
File:Bielefeld_GED_Instrument_Nov2007.jpg|November 2007, the apparatus is already in Uni-Bielefeld | |||
File:Bielefeld_GED_Instrument_Sep2009.jpg|September 2009, more control devices | |||
File:Bielefeld_GED_Instrument_May2011.jpg|May 2011, heavily improved control panel | |||
File:Bielefeld_GED_Instrument_2012.png|The instrument in 2012 | |||
File:Bielefeld_GED_Instrument_2013_6.jpg|December 2013, new pumps installed | |||
</gallery> | |||
=== Pumps === | === Pumps === |
Revision as of 10:00, 22 October 2014
This page contains description of equipment used by GED group in Bielefeld.
News
Date | Record |
---|---|
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 paper <bib id="BergerZFN2009" /> about this improved gas electron diffractometer contains lots of details.
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 (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.
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.
References
<biblist />