81
DTSA II / Re: adding oxford instruments Ultim Max detector
« Last post by Ben Buse on July 11, 2024, 07:49:20 AM »That's good because have no idea the detector information for some of the others - like window and detector coatings.
EPMA Software Designed By Users For Users
News:
To post in-line images, login and click on the Gallery link at the top
Recent Posts
82
Probe Image / Re: Searching PrbImg files
« Last post by Anette von der Handt on July 10, 2024, 10:26:16 AM »Hi John, this is super useful information. Thanks for sharing!
83
EPMA Standard Materials / Re: Looking for multi-phase mineral specimen with small domains
« Last post by crystalgrower on July 10, 2024, 10:22:18 AM »Other mineral specimens to look for at rock shops or Ebay:
-"-unakite" intergrown epidote and feldspar and quartz, look for finely intergrown green and orange grains
--the Precambrian granite pebbles that are widespread across Eastern North America, sub-mm intergrown grains of quarztite feldspar and biotite. If you are in the area look for glaciar-polished pebbles in "gravel" at a builders supply. Or in a streambed or on the beach...
In contrast most calcite-dolomite mixes are too coarse grained.
-"-unakite" intergrown epidote and feldspar and quartz, look for finely intergrown green and orange grains
--the Precambrian granite pebbles that are widespread across Eastern North America, sub-mm intergrown grains of quarztite feldspar and biotite. If you are in the area look for glaciar-polished pebbles in "gravel" at a builders supply. Or in a streambed or on the beach...
In contrast most calcite-dolomite mixes are too coarse grained.
84
Probe Image / Searching PrbImg files
« Last post by John Donovan on July 09, 2024, 01:36:44 PM »Recently someone asked if we could add the ability to search PrbImg map files (either acquired by Probe Image or converted into PrbImg format files from the JEOL or Cameca OEM software) for specific elements, sample names, etc. similar to how we can search Probe for EPMA MDB files for such items using the Search application:
The Search application is useful because the Probe for EPMA MDB files are in binary format (Microsoft Access Database format) and cannot be easily searched by users. The Search application also includes an option to search sub directories as well which is pretty cool.
However, the PrbImg file format is a simple ASCII file format (except for the 32 bit floating point data which is encoded to Base64 ASCII) and can be searched using a suitable text editor. Here is an example of a PrbImg x-ray map data file (without the color palette values and x-ray data):
[ProbeImage]
ImageFile=JEOL_WDS.tif
Type=prbimg
Version=1.2.0
Notes=
Probe=JEOL Microprobe
InstrumentModel=JEOL
ScanOrientation=AntiCartesian
ScanType=Stage
[BasicInfo]
Author=USGS DML
Computer=Windows10
Description=Hyper Probe
Make=JEOL
Model=8530F+
Organization=US Geological Survey
[UUID]
Application=726b4ef6-f2d5-4bd7-a49d-c4ac7beeff48
ImageSet=3ce06a28-d666-4098-b682-4ea8da23084a
Image=b7e54343-37ec-44be-90d2-0b35470b30ea
[Registration]
X1Pixel=1100
Y1Pixel=1100
X2Pixel=0
Y2Pixel=0
X3Pixel=1100
Y3Pixel=0
X1Real=-38.7354
Y1Real=15.5718
Z1Real=10.5175
X2Real=-37.6354
Y2Real=16.6718
Z2Real=10.5175
Z3Real=10.5185
[ColumnConditions]
BeamCurrent=101
BeamSize=1
ChannelNumber=1
ChannelLabel=WDS1
Crystal=1
CrystalName=TAP
Element=12
HighVoltage=20
Line=1
LineName=Ka
NegOffset=-5
Magnification=0
OffsetType=0
PixelTime=80
PosOffset=5
Position=107.532
SignalName=WDS1
ScanRotation=0
TakeoffAngle=40
Bias=1616
Baseline=0.5
Gain=16
Mode=1
Window=9.5
I like TextPad, which is a very flexible text editor:
https://www.textpad.com/home
It has a number of cool features including the ability to search sub folders:
Above shows a search of all PrbImg files in the UserImages folder (and sub folders), for the string "Element=12" which is of course magnesium. A double-click on any file in the Search Results window, opens that PrbImg file up in the text editor for further examination.
In case anyone finds this useful... oh, and another cool feature in TextPad is that one can change from normal line selection to "Block" selection by double-clicking the "Block" text at the bottom of the app window and then you can select columns of text for cutting and pasting.
The Search application is useful because the Probe for EPMA MDB files are in binary format (Microsoft Access Database format) and cannot be easily searched by users. The Search application also includes an option to search sub directories as well which is pretty cool.
However, the PrbImg file format is a simple ASCII file format (except for the 32 bit floating point data which is encoded to Base64 ASCII) and can be searched using a suitable text editor. Here is an example of a PrbImg x-ray map data file (without the color palette values and x-ray data):
[ProbeImage]
ImageFile=JEOL_WDS.tif
Type=prbimg
Version=1.2.0
Notes=
Probe=JEOL Microprobe
InstrumentModel=JEOL
ScanOrientation=AntiCartesian
ScanType=Stage
[BasicInfo]
Author=USGS DML
Computer=Windows10
Description=Hyper Probe
Make=JEOL
Model=8530F+
Organization=US Geological Survey
[UUID]
Application=726b4ef6-f2d5-4bd7-a49d-c4ac7beeff48
ImageSet=3ce06a28-d666-4098-b682-4ea8da23084a
Image=b7e54343-37ec-44be-90d2-0b35470b30ea
[Registration]
X1Pixel=1100
Y1Pixel=1100
X2Pixel=0
Y2Pixel=0
X3Pixel=1100
Y3Pixel=0
X1Real=-38.7354
Y1Real=15.5718
Z1Real=10.5175
X2Real=-37.6354
Y2Real=16.6718
Z2Real=10.5175
Z3Real=10.5185
[ColumnConditions]
BeamCurrent=101
BeamSize=1
ChannelNumber=1
ChannelLabel=WDS1
Crystal=1
CrystalName=TAP
Element=12
HighVoltage=20
Line=1
LineName=Ka
NegOffset=-5
Magnification=0
OffsetType=0
PixelTime=80
PosOffset=5
Position=107.532
SignalName=WDS1
ScanRotation=0
TakeoffAngle=40
Bias=1616
Baseline=0.5
Gain=16
Mode=1
Window=9.5
I like TextPad, which is a very flexible text editor:
https://www.textpad.com/home
It has a number of cool features including the ability to search sub folders:
Above shows a search of all PrbImg files in the UserImages folder (and sub folders), for the string "Element=12" which is of course magnesium. A double-click on any file in the Search Results window, opens that PrbImg file up in the text editor for further examination.
In case anyone finds this useful... oh, and another cool feature in TextPad is that one can change from normal line selection to "Block" selection by double-clicking the "Block" text at the bottom of the app window and then you can select columns of text for cutting and pasting.
85
EPMA Standard Materials / Re: Unsure of Analysis Standard
« Last post by mjpavel on July 09, 2024, 01:35:38 PM »As it turns out the weight %'s they reported are using oxford's factory quant standards inside Aztec...I'm at a bit of a loss what to even do with this block of material now
86
DTSA II / Re: Show emitted spectrum by using DTSA-II script
« Last post by Nicholas Ritchie on July 09, 2024, 11:40:21 AM »Thanks for fixing my cut-and-paste error.
87
DTSA II / Re: adding oxford instruments Ultim Max detector
« Last post by Nicholas Ritchie on July 09, 2024, 11:39:25 AM »The most important parameters are listed in the document that ZhaiQ references.
1. Take-off angle
2. Optima working distance
3. Window type
4. Detector Area
5. Distance from sample to detector
The first two are important for quant. The later ones are more important for simulation. The remainder are less critical.
1. Take-off angle
2. Optima working distance
3. Window type
4. Detector Area
5. Distance from sample to detector
The first two are important for quant. The later ones are more important for simulation. The remainder are less critical.
88
DTSA II / Re: adding oxford instruments Ultim Max detector
« Last post by ZhaiQ on July 09, 2024, 10:34:11 AM »I've added the Ultim Max 170 detector befoer, here're parameters I used:
1.Elevation angle
2.Working distance
3.Sample-to-detector distance
4.Detector area
5.Thickness
6.Window
I think you may want to check "Configuring instruments and detectors" from DTSA documentation, there're more details https://www.cstl.nist.gov/div837/837.02/epq/dtsa2/DTSA-II_Configuration.pdf
1.Elevation angle
2.Working distance
3.Sample-to-detector distance
4.Detector area
5.Thickness
6.Window
I think you may want to check "Configuring instruments and detectors" from DTSA documentation, there're more details https://www.cstl.nist.gov/div837/837.02/epq/dtsa2/DTSA-II_Configuration.pdf
89
DTSA II / stoichometric oxygen and carbon by difference
« Last post by Ben Buse on July 09, 2024, 08:29:58 AM »Hi
Does DTSA-II allow oxygen to be calculated stoichiometrically and carbon calculated by difference for carbonate spectra?
Does DTSA-II allow oxygen to be calculated stoichiometrically and carbon calculated by difference for carbonate spectra?
90
DTSA II / adding oxford instruments Ultim Max detector
« Last post by Ben Buse on July 09, 2024, 08:28:32 AM »Hi
Has anyone added an Oxford Ultim Max detector to DTSA-II and what parameters did then use?
Thanks
Has anyone added an Oxford Ultim Max detector to DTSA-II and what parameters did then use?
Thanks