# Webinar\_Questions

**URL:** <https://molflow-forum.web.cern.ch/t/webinar-questions/400>\
**Category:** General discussion\
**Created:** [August 14, 2020, 6:17am UTC](https://molflow-forum.web.cern.ch/t/webinar-questions/400 "2020-08-14T06:17:18Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![10094561810812611851](https://molflow-forum.web.cern.ch/letter_avatar_proxy/v4/letter/1/47e85d/32.png) [@10094561810812611851](https://molflow-forum.web.cern.ch/u/10094561810812611851)\
**Post date:** [August 14, 2020, 6:17am UTC](https://molflow-forum.web.cern.ch/t/webinar-questions/400/1 "2020-08-14T06:17:19Z")

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Hello  
I have thought it may be ok. to have a topic relevant to webinar. Although it may not be directly relevant to Molflow.

In the 1st [https://youtu.be/TijW6Fy0gik?t=296](https://youtu.be/TijW6Fy0gik?t=296) video, there is a reference to a catalogue.

Can you please provide a reference to the catalogue?  
Thanks.

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**Author:** ![rkerseva](https://molflow-forum.web.cern.ch/user_avatar/molflow-forum.web.cern.ch/rkerseva/32/15_2.png) [@rkerseva](https://molflow-forum.web.cern.ch/u/rkerseva)\
**Post date:** [August 14, 2020, 6:37am UTC](https://molflow-forum.web.cern.ch/t/webinar-questions/400/2 "2020-08-14T06:37:17Z")

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Hello:  
the “catalogue” cited in the video is an excerpt from a book, dealing with view-factor method of calculation of vacuum quantities.

The book is the following:

“Molecular flow in complex vacuum systems”, G.L. Saksaganskii, Gordon and Breach Science Publishers, ISBN: 2-88124-658-3

 ![Saksaganskii_book](https://molflow-forum.web.cern.ch/uploads/default/original/1X/9b9102ec5b0bb2526662e84db6e8fc15dfa90495.png)

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**Author:** ![sandwich](https://molflow-forum.web.cern.ch/letter_avatar_proxy/v4/letter/s/22d042/32.png) [@sandwich](https://molflow-forum.web.cern.ch/u/sandwich)\
**Post date:** [June 5, 2026, 10:44am UTC](https://molflow-forum.web.cern.ch/t/webinar-questions/400/3 "2026-06-05T10:44:41Z")

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Dear Roberto,

Thank you for sharing this valuable reference! I am currently working on simulating molecular flow in complex vacuum systems using Molflow+, and understanding the underlying view-factor methods and calculations from G.L. Saksaganskii’s work is crucial for my research.

Unfortunately, since this book was published in 1988 and is long out of print, it is exceptionally difficult to find or purchase a copy here in China, even through university libraries.

I was wondering if you might happen to have a digital copy, a scanned PDF, or specific excerpts of the “catalogue” sections that you could share for academic purposes? Any guidance on how to access this material would be immensely helpful for my project.

Thank you so much for your time and for your incredible work on Molflow+!

Best regards,  
Sandwich

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**Author:** ![rkerseva](https://molflow-forum.web.cern.ch/user_avatar/molflow-forum.web.cern.ch/rkerseva/32/15_2.png) [@rkerseva](https://molflow-forum.web.cern.ch/u/rkerseva)\
**Post date:** [June 5, 2026, 6:45pm UTC](https://molflow-forum.web.cern.ch/t/webinar-questions/400/4 "2026-06-05T18:45:19Z")

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Hello:

write to me at roberto.kersevan@cern.ch, please.