Problem with TPF (filters) in Hecus S3u

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Yevgen
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Joined: 2011.12.21 05:53
Location: Kazakh National University, Almaty

Problem with TPF (filters) in Hecus S3u

#1 Post by Yevgen » 2011.12.21 06:16

Hello everybody!

We are beginners in SAXS and plus recently got a problem with filters (TPF unit) at Hecus S3micro. The problem is that we can't initialize and set correct position of both filters (W and Ni) using ASA3 software. It looks like there is a communication problem between TPF and computer via appropriate USB-port (COM).
Seeking anybody from community who has experience in handling Hecus S3 machine.
Any advice will be highly appreciated.

Yevgen
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Posts: 3
Joined: 2011.12.21 05:53
Location: Kazakh National University, Almaty

Solved!

#2 Post by Yevgen » 2012.01.17 12:56

In fact the reason of TPF malfunction was in poor contact (most possibly of grounding wire or shield) in cable connector due to loosened screwing cap. So we just tightened the connectors caps and that is all ))).
Sorry for disturbing you. And - Keep it in mind )))

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AL
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#3 Post by AL » 2012.01.17 14:17

Good that you've found a solution! Do not hesitate to post your questions here - may be it will help somebody else.

SAXSIST
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Problem w/ TPF

#4 Post by SAXSIST » 2012.04.02 21:51

If you still have troubles with the TPF - just let me know.
We can repair and have even better solutions for this.
Attenuation by filters for non-monochromatic beams is not state-of-the art.

Yevgen
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Posts: 3
Joined: 2011.12.21 05:53
Location: Kazakh National University, Almaty

Re: Problem w/ TPF

#5 Post by Yevgen » 2012.05.25 12:57

SAXSIST wrote:If you still have troubles with the TPF - just let me know.
We can repair and have even better solutions for this.
Attenuation by filters for non-monochromatic beams is not state-of-the art.
Actually we have not that problem with TPF but we aren't very happy with that filters in general. Sometimes we got a "host" peak in a dark zone (even behind the W-filter), sometimes not.
The other problem in S3micro is the lack of beam-stop for GISAXS and generally "not-perfect" adaptation for GISAXS measurements.
Seeking any training on GISAXS (expecially - based on Hecus S3Micro).

We'll highly appreciate any assistance.

SAXSIST
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Posts: 10
Joined: 2012.04.02 21:44
Location: Photron-X, Germany

Re: Problem with TPF (filters) in Hecus S3u

#6 Post by SAXSIST » 2012.05.25 13:27

Hello Yevgen,

I was one of the Hecus-founders and know the TPF very well. I have left Hecus in 1998 and may not be up-to-date concerning the latest versions of this device and the S3micro, however, still have a lot experience with the previous SAXS camera models.
In such cases, we usually recommend to use the original mechanical "Kratky beam-stop" as there are no "ghost peaks" and very low background scattering.
In addition we are just developing a combination of mechanical beam-stop and moving slit device, which additionally allows to monitor the attenuated primary beam. We have started developing this new device in order to replace the TPF and enable users to collect better data.
If you are interested, just drop me an e-mail (hannes.mio@photron-x.com).

Sincerrely,
Hannes alias SAXSIST

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