Thread: [PyMca] SIMULATION OF SCATTER PEAKS
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 10:32:01
Attachments:
spectrum.pdf
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Dear members, I have attempted to simulate experimental spectrum using XMI-MSIM pymca software but the simulated scatter peaks are not matching with their experimental counterparts. I would like to know why and how to correct it. See the attached spectra. Thank you in advance. Edward Sichangi |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 14:20:13
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Dear Edward, Can you provide details about your excitation source? Armando On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: > Dear members, > > I have attempted to simulate experimental spectrum using XMI-MSIM > pymca software but the simulated scatter peaks are not matching with > their experimental counterparts. I would like to know why and how to > correct it. > > See the attached spectra. > > Thank you in advance. > > Edward Sichangi > > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 14:40:12
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Dear Armando, Many thanks for the prompt response. The excitation energy is 17.5 keV (X-ray tube) On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing list. < pym...@li...> wrote: > Dear Edward, > > Can you provide details about your excitation source? > > Armando > > On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: > > Dear members, > > > > I have attempted to simulate experimental spectrum using XMI-MSIM > > pymca software but the simulated scatter peaks are not matching with > > their experimental counterparts. I would like to know why and how to > > correct it. > > > > See the attached spectra. > > > > Thank you in advance. > > > > Edward Sichangi > > > > > > _______________________________________________ > > PyMca-users mailing list > > PyM...@li... > > https://lists.sourceforge.net/lists/listinfo/pymca-users > > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 15:08:53
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Dear Edward, My first impression is that you are considering Mo-Ka as exctation beam and that you have forgotten about Mo-Kb. (double click on the second energy of the energy table to turn-it pink) Without the original spectrum and the original cfg file it is difficult to say more. Armando On 25/06/2025 16:50, PyMca general purpose mailing list. wrote: > Dear Armando, > > Many thanks for the prompt response. > > The excitation energy is 17.5 keV (X-ray tube) > > On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing list. > <pym...@li...> wrote: > > Dear Edward, > > Can you provide details about your excitation source? > > Armando > > On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: > > Dear members, > > > > I have attempted to simulate experimental spectrum using XMI-MSIM > > pymca software but the simulated scatter peaks are not matching > with > > their experimental counterparts. I would like to know why and > how to > > correct it. > > > > See the attached spectra. > > > > Thank you in advance. > > > > Edward Sichangi > > > > > > _______________________________________________ > > PyMca-users mailing list > > PyM...@li... > > https://lists.sourceforge.net/lists/listinfo/pymca-users > > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > > > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 15:34:41
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Dear Armando, Attached kindly find the original spectrum and cfg file I used. Thank you in advance. On Wed, Jun 25, 2025 at 6:09 PM PyMca general purpose mailing list. < pym...@li...> wrote: > Dear Edward, > My first impression is that you are considering Mo-Ka as exctation beam > and that you have forgotten about Mo-Kb. (double click on the second > energy of the energy table to turn-it pink) > > > Without the original spectrum and the original cfg file it is difficult to > say more. > > Armando > > On 25/06/2025 16:50, PyMca general purpose mailing list. wrote: > > Dear Armando, > > Many thanks for the prompt response. > > The excitation energy is 17.5 keV (X-ray tube) > > On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing list. < > pym...@li...> wrote: > >> Dear Edward, >> >> Can you provide details about your excitation source? >> >> Armando >> >> On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: >> > Dear members, >> > >> > I have attempted to simulate experimental spectrum using XMI-MSIM >> > pymca software but the simulated scatter peaks are not matching with >> > their experimental counterparts. I would like to know why and how to >> > correct it. >> > >> > See the attached spectra. >> > >> > Thank you in advance. >> > >> > Edward Sichangi >> > >> > >> > _______________________________________________ >> > PyMca-users mailing list >> > PyM...@li... >> > https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> > > > _______________________________________________ > PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 15:58:33
Attachments:
spectrum.pdf
AXraQaEQrqXJRekB.png
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Dear members, Many thanks for the responses Armando. I have double clicked the second energy table but the results are still the same. As you can see from the scatter peaks, why is the simulated one more intense than the experimental counterpart. REGARDS On Wed, Jun 25, 2025 at 6:34 PM PyMca general purpose mailing list. < pym...@li...> wrote: > Dear Armando, > > Attached kindly find the original spectrum and cfg file I used. > > Thank you in advance. > > On Wed, Jun 25, 2025 at 6:09 PM PyMca general purpose mailing list. < > pym...@li...> wrote: > >> Dear Edward, >> My first impression is that you are considering Mo-Ka as exctation beam >> and that you have forgotten about Mo-Kb. (double click on the second >> energy of the energy table to turn-it pink) >> >> >> Without the original spectrum and the original cfg file it is difficult >> to say more. >> >> Armando >> >> On 25/06/2025 16:50, PyMca general purpose mailing list. wrote: >> >> Dear Armando, >> >> Many thanks for the prompt response. >> >> The excitation energy is 17.5 keV (X-ray tube) >> >> On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing list. < >> pym...@li...> wrote: >> >>> Dear Edward, >>> >>> Can you provide details about your excitation source? >>> >>> Armando >>> >>> On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: >>> > Dear members, >>> > >>> > I have attempted to simulate experimental spectrum using XMI-MSIM >>> > pymca software but the simulated scatter peaks are not matching with >>> > their experimental counterparts. I would like to know why and how to >>> > correct it. >>> > >>> > See the attached spectra. >>> > >>> > Thank you in advance. >>> > >>> > Edward Sichangi >>> > >>> > >>> > _______________________________________________ >>> > PyMca-users mailing list >>> > PyM...@li... >>> > https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >>> >>> _______________________________________________ >>> PyMca-users mailing list >>> PyM...@li... >>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >> >> >> _______________________________________________ >> PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-25 17:13:31
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But have you filled all the energies emitted by your tube??? Run your simulation with something similar to the table below. DISCLAIMER: I do not know if your tube has anything to select a single energy nor if the ratios below apply to the emission of your tube. In the configuration you sent us you are using a monochromatic beam. Without optical elements, you must have multiple energies coming out of your X-ray tube and not a single one. On 25/06/2025 18:08, PyMca general purpose mailing list. wrote: > Dear members, > > Many thanks for the responses Armando. I have double clicked the > second energy table but the results are still the same. > > As you can see from the scatter peaks, why is the simulated one more > intense than the experimental counterpart. > > REGARDS > > On Wed, Jun 25, 2025 at 6:34 PM PyMca general purpose mailing list. > <pym...@li...> wrote: > > Dear Armando, > > Attached kindly find the original spectrum and cfg file I used. > > Thank you in advance. > > On Wed, Jun 25, 2025 at 6:09 PM PyMca general purpose mailing > list. <pym...@li...> wrote: > > Dear Edward, > > My first impression is that you are considering Mo-Ka as > exctation beam and that you have forgotten about Mo-Kb. > (double click on the second energy of the energy table to > turn-it pink) > > > Without the original spectrum and the original cfg file it is > difficult to say more. > > Armando > > On 25/06/2025 16:50, PyMca general purpose mailing list. wrote: >> Dear Armando, >> >> Many thanks for the prompt response. >> >> The excitation energy is 17.5 keV (X-ray tube) >> >> On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing >> list. <pym...@li...> wrote: >> >> Dear Edward, >> >> Can you provide details about your excitation source? >> >> Armando >> >> On 25/06/2025 12:41, PyMca general purpose mailing list. >> wrote: >> > Dear members, >> > >> > I have attempted to simulate experimental spectrum >> using XMI-MSIM >> > pymca software but the simulated scatter peaks are not >> matching with >> > their experimental counterparts. I would like to >> know why and how to >> > correct it. >> > >> > See the attached spectra. >> > >> > Thank you in advance. >> > >> > Edward Sichangi >> > >> > >> > _______________________________________________ >> > PyMca-users mailing list >> > PyM...@li... >> > https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > > > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-26 15:04:58
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Dear Armando, Thank you for the responses. I have included the multiple energies as you advised and both the K alpha and K beta peaks for Compton and Rayleigh scattering have appeared. However, just as the earlier case, the simulated peaks are more intense than the experimental counterparts. Kindly see the attached spectra. Kind regards Edward Sichangi On Wed, Jun 25, 2025 at 8:13 PM PyMca general purpose mailing list. < pym...@li...> wrote: > But have you filled all the energies emitted by your tube??? Run your > simulation with something similar to the table below. > > DISCLAIMER: I do not know if your tube has anything to select a single > energy nor if the ratios below apply to the emission of your tube. In the > configuration you sent us you are using a monochromatic beam. Without > optical elements, you must have multiple energies coming out of your X-ray > tube and not a single one. > > On 25/06/2025 18:08, PyMca general purpose mailing list. wrote: > > Dear members, > > Many thanks for the responses Armando. I have double clicked the second > energy table but the results are still the same. > > As you can see from the scatter peaks, why is the simulated one more > intense than the experimental counterpart. > > REGARDS > > On Wed, Jun 25, 2025 at 6:34 PM PyMca general purpose mailing list. < > pym...@li...> wrote: > >> Dear Armando, >> >> Attached kindly find the original spectrum and cfg file I used. >> >> Thank you in advance. >> >> On Wed, Jun 25, 2025 at 6:09 PM PyMca general purpose mailing list. < >> pym...@li...> wrote: >> >>> Dear Edward, >>> My first impression is that you are considering Mo-Ka as exctation beam >>> and that you have forgotten about Mo-Kb. (double click on the second >>> energy of the energy table to turn-it pink) >>> >>> >>> Without the original spectrum and the original cfg file it is difficult >>> to say more. >>> >>> Armando >>> >>> On 25/06/2025 16:50, PyMca general purpose mailing list. wrote: >>> >>> Dear Armando, >>> >>> Many thanks for the prompt response. >>> >>> The excitation energy is 17.5 keV (X-ray tube) >>> >>> On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing list. < >>> pym...@li...> wrote: >>> >>>> Dear Edward, >>>> >>>> Can you provide details about your excitation source? >>>> >>>> Armando >>>> >>>> On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: >>>> > Dear members, >>>> > >>>> > I have attempted to simulate experimental spectrum using XMI-MSIM >>>> > pymca software but the simulated scatter peaks are not matching with >>>> > their experimental counterparts. I would like to know why and how to >>>> > correct it. >>>> > >>>> > See the attached spectra. >>>> > >>>> > Thank you in advance. >>>> > >>>> > Edward Sichangi >>>> > >>>> > >>>> > _______________________________________________ >>>> > PyMca-users mailing list >>>> > PyM...@li... >>>> > https://lists.sourceforge.net/lists/listinfo/pymca-users >>>> >>>> >>>> _______________________________________________ >>>> PyMca-users mailing list >>>> PyM...@li... >>>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>>> >>> >>> >>> _______________________________________________ >>> PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >>> _______________________________________________ >>> PyMca-users mailing list >>> PyM...@li... >>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> > > > _______________________________________________ > PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-26 17:38:31
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Dear Edward, That can have multiple explanations (bad description of the experiment, sample, geometry...) but none of them has anything to do with PyMca itself. Best regards, Armando On 26/06/2025 17:14, PyMca general purpose mailing list. wrote: > Dear Armando, > > Thank you for the responses. > I have included the multiple energies as you advised and both the K > alpha and K beta peaks for Compton and Rayleigh scattering have > appeared. However, just as the earlier case, the simulated peaks are > more intense than the experimental counterparts. > > Kindly see the attached spectra. > > Kind regards > > Edward Sichangi > > On Wed, Jun 25, 2025 at 8:13 PM PyMca general purpose mailing list. > <pym...@li...> wrote: > > But have you filled all the energies emitted by your tube??? Run > your simulation with something similar to the table below. > > DISCLAIMER: I do not know if your tube has anything to select a > single energy nor if the ratios below apply to the emission of > your tube. In the configuration you sent us you are using a > monochromatic beam. Without optical elements, you must have > multiple energies coming out of your X-ray tube and not a single one. > > On 25/06/2025 18:08, PyMca general purpose mailing list. wrote: >> Dear members, >> >> Many thanks for the responses Armando. I have double clicked the >> second energy table but the results are still the same. >> >> As you can see from the scatter peaks, why is the simulated one >> more intense than the experimental counterpart. >> >> REGARDS >> >> On Wed, Jun 25, 2025 at 6:34 PM PyMca general purpose mailing >> list. <pym...@li...> wrote: >> >> Dear Armando, >> >> Attached kindly find the original spectrum and cfg file I used. >> >> Thank you in advance. >> >> On Wed, Jun 25, 2025 at 6:09 PM PyMca general purpose mailing >> list. <pym...@li...> wrote: >> >> Dear Edward, >> >> My first impression is that you are considering Mo-Ka as >> exctation beam and that you have forgotten about Mo-Kb. >> (double click on the second energy of the energy table to >> turn-it pink) >> >> >> Without the original spectrum and the original cfg file >> it is difficult to say more. >> >> Armando >> >> On 25/06/2025 16:50, PyMca general purpose mailing list. >> wrote: >>> Dear Armando, >>> >>> Many thanks for the prompt response. >>> >>> The excitation energy is 17.5 keV (X-ray tube) >>> >>> On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose >>> mailing list. <pym...@li...> wrote: >>> >>> Dear Edward, >>> >>> Can you provide details about your excitation source? >>> >>> Armando >>> >>> On 25/06/2025 12:41, PyMca general purpose mailing >>> list. wrote: >>> > Dear members, >>> > >>> > I have attempted to simulate experimental spectrum >>> using XMI-MSIM >>> > pymca software but the simulated scatter peaks are >>> not matching with >>> > their experimental counterparts. I would like to >>> know why and how to >>> > correct it. >>> > >>> > See the attached spectra. >>> > >>> > Thank you in advance. >>> > >>> > Edward Sichangi >>> > >>> > >>> > _______________________________________________ >>> > PyMca-users mailing list >>> > PyM...@li... >>> > >>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >>> >>> _______________________________________________ >>> PyMca-users mailing list >>> PyM...@li... >>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >>> >>> >>> _______________________________________________ >>> PyMca-users mailing list >>> PyM...@li... >>> https://lists.sourceforge.net/lists/listinfo/pymca-users >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > > > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users |
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From: PyMca g. p. m. list. <pym...@li...> - 2025-06-30 14:06:31
Attachments:
gkNtwkjD8wOCEXpC.png
AXraQaEQrqXJRekB.png
|
Dear Amando, Many thanks for the responses. Kind regards Edward Sichangi On Thu, Jun 26, 2025 at 8:38 PM PyMca general purpose mailing list. < pym...@li...> wrote: > Dear Edward, > > That can have multiple explanations (bad description of the experiment, > sample, geometry...) but none of them has anything to do with PyMca itself. > Best regards, > > Armando > > On 26/06/2025 17:14, PyMca general purpose mailing list. wrote: > > Dear Armando, > > Thank you for the responses. > I have included the multiple energies as you advised and both the K alpha > and K beta peaks for Compton and Rayleigh scattering have appeared. > However, just as the earlier case, the simulated peaks are more intense > than the experimental counterparts. > > Kindly see the attached spectra. > > Kind regards > > Edward Sichangi > > On Wed, Jun 25, 2025 at 8:13 PM PyMca general purpose mailing list. < > pym...@li...> wrote: > >> But have you filled all the energies emitted by your tube??? Run your >> simulation with something similar to the table below. >> >> DISCLAIMER: I do not know if your tube has anything to select a single >> energy nor if the ratios below apply to the emission of your tube. In the >> configuration you sent us you are using a monochromatic beam. Without >> optical elements, you must have multiple energies coming out of your X-ray >> tube and not a single one. >> >> On 25/06/2025 18:08, PyMca general purpose mailing list. wrote: >> >> Dear members, >> >> Many thanks for the responses Armando. I have double clicked the second >> energy table but the results are still the same. >> >> As you can see from the scatter peaks, why is the simulated one more >> intense than the experimental counterpart. >> >> REGARDS >> >> On Wed, Jun 25, 2025 at 6:34 PM PyMca general purpose mailing list. < >> pym...@li...> wrote: >> >>> Dear Armando, >>> >>> Attached kindly find the original spectrum and cfg file I used. >>> >>> Thank you in advance. >>> >>> On Wed, Jun 25, 2025 at 6:09 PM PyMca general purpose mailing list. < >>> pym...@li...> wrote: >>> >>>> Dear Edward, >>>> My first impression is that you are considering Mo-Ka as exctation beam >>>> and that you have forgotten about Mo-Kb. (double click on the second >>>> energy of the energy table to turn-it pink) >>>> >>>> >>>> Without the original spectrum and the original cfg file it is difficult >>>> to say more. >>>> >>>> Armando >>>> >>>> On 25/06/2025 16:50, PyMca general purpose mailing list. wrote: >>>> >>>> Dear Armando, >>>> >>>> Many thanks for the prompt response. >>>> >>>> The excitation energy is 17.5 keV (X-ray tube) >>>> >>>> On Wed, Jun 25, 2025 at 5:20 PM PyMca general purpose mailing list. < >>>> pym...@li...> wrote: >>>> >>>>> Dear Edward, >>>>> >>>>> Can you provide details about your excitation source? >>>>> >>>>> Armando >>>>> >>>>> On 25/06/2025 12:41, PyMca general purpose mailing list. wrote: >>>>> > Dear members, >>>>> > >>>>> > I have attempted to simulate experimental spectrum using XMI-MSIM >>>>> > pymca software but the simulated scatter peaks are not matching with >>>>> > their experimental counterparts. I would like to know why and how to >>>>> > correct it. >>>>> > >>>>> > See the attached spectra. >>>>> > >>>>> > Thank you in advance. >>>>> > >>>>> > Edward Sichangi >>>>> > >>>>> > >>>>> > _______________________________________________ >>>>> > PyMca-users mailing list >>>>> > PyM...@li... >>>>> > https://lists.sourceforge.net/lists/listinfo/pymca-users >>>>> >>>>> >>>>> _______________________________________________ >>>>> PyMca-users mailing list >>>>> PyM...@li... >>>>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>>>> >>>> >>>> >>>> _______________________________________________ >>>> PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users >>>> >>>> _______________________________________________ >>>> PyMca-users mailing list >>>> PyM...@li... >>>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>>> >>> _______________________________________________ >>> PyMca-users mailing list >>> PyM...@li... >>> https://lists.sourceforge.net/lists/listinfo/pymca-users >>> >> >> >> _______________________________________________ >> PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users >> >> _______________________________________________ >> PyMca-users mailing list >> PyM...@li... >> https://lists.sourceforge.net/lists/listinfo/pymca-users >> > > > _______________________________________________ > PyMca-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/pymca-users > > _______________________________________________ > PyMca-users mailing list > PyM...@li... > https://lists.sourceforge.net/lists/listinfo/pymca-users > |
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