Hef4cTestResults

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Test Result February 2003 at ILL

Hef4cTestResults/he0.gif

Test Results on TriCS Flow Cryostat from 20 May 2005

Settings

Cold Valve: 5.0
Flow Controller:100 (80 was similar)
Hef4cTestResults/cmp.gif
Comparison of the test at PSI at 20 May 05 (left) with the test result at ILL (right, different time scale). For PSI, the same channel as at ILL is shown (RhFe Sensor).

Conclusions from the Test

  • The stability is comparable to the results at the ILL (Feb 2003). It is about +- 0.1 K below 4 K, an better than +- 0.05 K above.
  • Control on the cold valve is delicate, but possible. After cool down it takes some time (2 hours) until a stable control on the cold valve controller is possible.
  • Further tests on TriCS with cradle moving are needed. It has to be proven that the test results can be reproduced on the instrument.

Hef4cTestResults/he1.gif
Hef4cTestResults/he2.gif
Hef4cTestResults/he3.gif
Hef4cTestResults/he4.gif

Attachments:  he1.gif  he3.gif  he0.gif  he2.gif  he4.gif  cmp.gif 
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This page last changed on 04-Apr-2006 13:42:41 UTC by MarkusZolliker.