Specific Process Knowledge/Characterization/XRD/XRD Powder/Measurement tips - Revision history

Reet: /* Choosing measurement parameters */

2024-05-13T15:24:56Z

Choosing measurement parameters

← Older revision		Revision as of 17:24, 13 May 2024
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	Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.		Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.

	A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It has helpful hints on adjusting the hardware including choices on beam knife height and slit size~~. It also has some pictures from~~ the ~~XRDMP Creator software~~.		A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It has helpful hints on adjusting the hardware including choices on beam knife height and slit size, more focused on geological samples but otherwise similar to what we write in the Nanolab manual for the XRD Powder.

	==Fluorescence suppression==		==Fluorescence suppression==

Reet: /* Choosing measurement parameters */

2024-05-13T15:23:26Z

Choosing measurement parameters

← Older revision		Revision as of 17:23, 13 May 2024
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	Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.		Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.

	A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It ~~also~~ has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software.		A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software.

	==Fluorescence suppression==		==Fluorescence suppression==

Reet: /* Choosing measurement parameters */

2024-05-13T15:22:56Z

Choosing measurement parameters

← Older revision		Revision as of 17:22, 13 May 2024
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	Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.		Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.

	A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It also has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. ~~A useful nugget of info from there which you will not find in our manual concerns the beam knife position: ..."Scanning at angles less than 5° 2θ you will need to lower the knife (anti scatter)."~~		A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It also has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software.

	==Fluorescence suppression==		==Fluorescence suppression==

Reet: /* Fluorescence suppression */

2024-05-13T15:19:47Z

Fluorescence suppression

← Older revision		Revision as of 17:19, 13 May 2024
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	It is possible to adjust the Pulse Height Discrimination levels of the Pixcel 1D detector on our machine. This can help suppress signal from fluorescence, which is at a slightly different energy level than the pure copper K-alpha signal. The exact energy level of the fluorescence of course depends on the material you are measuring.		It is possible to adjust the Pulse Height Discrimination levels of the Pixcel 1D detector on our machine. This can help suppress signal from fluorescence, which is at a slightly different energy level than the pure copper K-alpha signal. The exact energy level of the fluorescence of course depends on the material you are measuring.

	Here is a comparison of a measurement of FeOH with and without fluorescence suppression (green with fluorescence suppression, blue without, rather noisy / quick measurement done here):		Here is a comparison of a measurement of FeOH with and without fluorescence suppression (green with fluorescence suppression, blue without, rather noisy / quick measurement done here but you see the difference in background intensity very clearly):

	[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]		[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]

Reet: /* Fluorescence suppression */

2024-05-13T15:19:16Z

Fluorescence suppression

← Older revision		Revision as of 17:19, 13 May 2024
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	It is possible to adjust the Pulse Height Discrimination levels of the Pixcel 1D detector on our machine. This can help suppress signal from fluorescence, which is at a slightly different energy level than the pure copper K-alpha signal. The exact energy level of the fluorescence of course depends on the material you are measuring.		It is possible to adjust the Pulse Height Discrimination levels of the Pixcel 1D detector on our machine. This can help suppress signal from fluorescence, which is at a slightly different energy level than the pure copper K-alpha signal. The exact energy level of the fluorescence of course depends on the material you are measuring.

	Here is a comparison of a measurement with and without fluorescence suppression:		Here is a comparison of a measurement of FeOH with and without fluorescence suppression (green with fluorescence suppression, blue without, rather noisy / quick measurement done here):

	[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]		[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]

Reet: /* Choosing measurement parameters */

2024-05-13T15:18:18Z

Choosing measurement parameters

← Older revision		Revision as of 17:18, 13 May 2024
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	==Choosing measurement parameters==		==Choosing measurement parameters==

	Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons ~~cannot~~ make available here.		Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons do not make available here.

	A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It also has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. A useful nugget of info from there which you will not find in our manual concerns the beam knife position: ..."Scanning at angles less than 5° 2θ you will need to lower the knife (anti scatter)."		A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It also has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. A useful nugget of info from there which you will not find in our manual concerns the beam knife position: ..."Scanning at angles less than 5° 2θ you will need to lower the knife (anti scatter)."

	==Fluorescence suppression==		==Fluorescence suppression==

Reet at 15:16, 13 May 2024

2024-05-13T15:16:53Z

← Older revision		Revision as of 17:16, 13 May 2024
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	'''Feedback to this page''': '''[mailto:labadviser@nanolab.dtu.dk?Subject=Feed%20back%20from%20page%20http://labadviser.nanolab.dtu.dk/index.php/Specific_Process_Knowledge/Characterization/XRD/XRD_Powder click here]'''		'''Feedback to this page''': '''[mailto:labadviser@nanolab.dtu.dk?Subject=Feed%20back%20from%20page%20http://labadviser.nanolab.dtu.dk/index.php/Specific_Process_Knowledge/Characterization/XRD/XRD_Powder click here]'''

	~~[[image:Under_construction.png\|200px]]~~

	~~This page is under construction~~



	==Choosing measurement parameters==		==Choosing measurement parameters==

Reet: /* Fluorescence suppression */

2024-05-13T15:15:51Z

Fluorescence suppression

← Older revision		Revision as of 17:15, 13 May 2024
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	Here is a comparison of a measurement with and without fluorescence suppression:		Here is a comparison of a measurement with and without fluorescence suppression:

	[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]		[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]

Reet: /* Choosing measurement parameters */

2024-05-13T15:15:35Z

Choosing measurement parameters

← Older revision		Revision as of 17:15, 13 May 2024
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	==Choosing measurement parameters==		==Choosing measurement parameters==
	A detailed manual on the Aeris XRD is found on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. Some info from there:

	...~~"Scanning at angles less than 5° 2θ you will need to lower~~ the ~~knife (anti scatter)~~."		Some helpful tips can now be found in the [https://labmanager.dtu.dk/d4Show.php?id=6584&mach=463#dafs72253 manual on LabManager], section 4. They are mostly copied from the XRDMP Creater help document, which we for copyright reasons cannot make available here.

	.... "at ~~low~~ angles you ~~also~~ need ~~a narrower slit~~ (which ~~will reduce intensity but also~~ the ~~irradiated area)~~."		A detailed manual on the Aeris XRD is found online on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It also has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. A useful nugget of info from there which you will not find in our manual concerns the beam knife position: ..."Scanning at angles less than 5° 2θ you will need to lower the knife (anti scatter)."

			==Fluorescence suppression==
			It is possible to adjust the Pulse Height Discrimination levels of the Pixcel 1D detector on our machine. This can help suppress signal from fluorescence, which is at a slightly different energy level than the pure copper K-alpha signal. The exact energy level of the fluorescence of course depends on the material you are measuring.

			Here is a comparison of a measurement with and without fluorescence suppression:
			[[File:fluoresc supp feoh.png\|400px\|caption:FeOH measured with and without fluorescence suppression.]]

Reet: /* Choosing measurement parameters */

2023-05-11T12:06:36Z

Choosing measurement parameters

← Older revision		Revision as of 14:06, 11 May 2023
Line 10:		Line 10:
	A detailed manual on the Aeris XRD is found on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. Some info from there:		A detailed manual on the Aeris XRD is found on the [https://wiki.iodp.tamu.edu/display/LMUG/Aeris+Advanced+User+Guide wiki of the International Ocean Discovery Project]. It has helpful hints on adjusting the hardware including choices on beam knife height and slit size. It also has some pictures from the XRDMP Creator software. Some info from there:

	...Scanning at angles less than 5° 2θ you will need to lower the knife (anti scatter).		..."Scanning at angles less than 5° 2θ you will need to lower the knife (anti scatter)."
	.... at low angles you also need a narrower slit (which will reduce intensity but also the irradiated area)
			.... "at low angles you also need a narrower slit (which will reduce intensity but also the irradiated area)."