Sorry for the error in my previous mail: the detector was of course an X'celerator, not Accelrys. Apologies
El dom, 3 sep. 2023 21:02, miguel gregorkiewitz <[email protected]> escribió: > Forgot to say that the problem is absent in diffractometers with > monochromator. I observed it first in a bragg-brentano diffractometer with > accelrys linear position sensitive detector (panalytical) which had no > monochromator > > > El dom, 3 sep. 2023 20:47, miguel gregorkiewitz <[email protected]> > escribió: > >> Kbeta can always be added, but for the absorption edge there seems to be >> no remedy, and as seen in the graph, it is far more important >> >> >> El dom, 3 sep. 2023 18:54, Kurt Leinenweber <[email protected]> escribió: >> >>> Hi, Are these things modeled in Rietveld programs, by chance? It seems >>> like a lot of baggage to put in a refinement but if it makes the results >>> better… >>> >>> >>> >>> - Kurt >>> >>> >>> >>> *From:* [email protected] <[email protected]> *On >>> Behalf Of *Thomas Gegan >>> *Sent:* Sunday, September 3, 2023 9:16 AM >>> *To:* Bish, David L <[email protected]>; Shay Tirosh <[email protected]>; >>> Fernando Igoa <[email protected]> >>> *Cc:* Rietveld List ([email protected]) <[email protected]> >>> *Subject:* RE: [EXT] Re: [External] Re: Step-like basline >>> >>> >>> >>> I agree with a Ni absorption edge, possibly with a Kβ peak around 38° 2θ. >>> >>> >>> >>> *Tom Gegan* >>> Chemist III >>> >>> >>> >>> Phone: +1 732 205-5111, Email: [email protected] >>> Postal Address: BASF Corporation, , 25 Middlesex Essex Turnpike, 08830 >>> Iselin, United States >>> >>> >>> >>> *From:* [email protected] <[email protected]> *On >>> Behalf Of *Bish, David L >>> *Sent:* Sunday, September 3, 2023 7:08 AM >>> *To:* Shay Tirosh <[email protected]>; Fernando Igoa < >>> [email protected]> >>> *Cc:* Rietveld List ([email protected]) <[email protected]> >>> *Subject:* [EXT] Re: [External] Re: Step-like basline >>> >>> >>> >>> Some people who received this message don't often get email from >>> [email protected]. Learn why this is important >>> <https://urldefense.com/v3/__https:/aka.ms/LearnAboutSenderIdentification__;!!IKRxdwAv5BmarQ!fFhSHn4S5iEzkW-O9lvWG-OzoqK_2SKhRniGa71nxuOL3GcxiyD83i2mnNN0Z48HPkn4zjKqH-aqqA$> >>> >>> Hello Shay, >>> >>> I think it is probably related to "tube tails". You can read about this >>> in the literature (e.g., on the BGMN web site) and you can model it in some >>> Rietveld software such as Topas. You don't normally notice this but it >>> becomes apparent with higher-intensity peaks. >>> >>> >>> >>> Regards, >>> >>> Dave >>> ------------------------------ >>> >>> *From:* [email protected] <[email protected]> on behalf >>> of Fernando Igoa <[email protected]> >>> *Sent:* Sunday, September 3, 2023 3:06 AM >>> *To:* Shay Tirosh <[email protected]> >>> *Cc:* Rietveld List ([email protected]) <[email protected]> >>> *Subject:* [External] Re: Step-like basline >>> >>> >>> >>> This message was sent from a non-IU address. Please exercise caution >>> when clicking links or opening attachments from external sources. >>> >>> >>> >>> Hey Shay, >>> >>> >>> >>> Are you using a motorized slit during the measurement? These may open up >>> abruptly to compensate for the angular dependence of the footprint and thus >>> generate an abrupt increase in the intensity. >>> >>> >>> >>> Hope it helps :) >>> >>> >>> >>> On Sun, Sep 3, 2023, 8:50 AM Shay Tirosh <[email protected]> wrote: >>> >>> Dear Rietvelders >>> >>> I am attaching a zoom-in on a diffraction profile. >>> >>> My question is what is the origin of the step-like profile next to a >>> very large reflection peak? >>> >>> Is it a sample preparation problem? >>> >>> Is it part of the baseline? >>> >>> Thanks >>> >>> Shay >>> >>> -- >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>> Please do NOT attach files to the whole list < >>> [email protected]> >>> Send commands to <[email protected]> eg: HELP as the subject with no body >>> text >>> The Rietveld_L list archive is on >>> http://www.mail-archive.com/[email protected]/ >>> <https://urldefense.com/v3/__http:/www.mail-archive.com/[email protected]/__;!!IKRxdwAv5BmarQ!fFhSHn4S5iEzkW-O9lvWG-OzoqK_2SKhRniGa71nxuOL3GcxiyD83i2mnNN0Z48HPkn4zjJTf8rNHg$> >>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>> >>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>> Please do NOT attach files to the whole list >>> <[email protected]> >>> Send commands to <[email protected]> eg: HELP as the subject with no body >>> text >>> The Rietveld_L list archive is on >>> http://www.mail-archive.com/[email protected]/ >>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ >>> >>>
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