Artax

[Craig W]

Hi,

I'm working off-line with Artax and want to direct the software to a calibration file on my PC so I can use the Quantification tab - Calculate concentration -  Unit ppm - in the Method box. Is that possible? I'm new to this software so any advice would be greatly appreciated.

Cheers
C

[Lee Drake]

HI Craig,

It is theoretically possible to build a calibration for Artax - but its empirical calibration method is quite poor and considerably underperforms almost every available method (EasyCal, S1CalProcess, and CloudCal). I spent some time trying to work with it back in 2014 and found it not worth the effort. If you want to explore this option, you can find instructions for how to build a calibration for older versions of Artax in section 6.4 on page 67. Like all empirical methods, you'll need reference spectra with known values. Once you have a .cal file ,you can apply it in the Methods editor. 

Link to instructions: https://www.dropbox.com/scl/fi/w2blv7cwtnze8lfs9ofs9/Spectra-Analysis-code_UserManual_en.pdf?rlkey=e0tsh9sdblp0hix27zkt13kum&dl=0

- Lee

--
Visit the pXRF for Cultural Heritage website at:
https://sites.google.com/site/pxrfgroup/
---
You received this message because you are subscribed to the Google Groups "pXRF for Cultural Heritage" group.
To unsubscribe from this group and stop receiving emails from it, send an email to pxrf+uns...@googlegroups.com.
To view this discussion visit https://groups.google.com/d/msgid/pxrf/1bdba6aa-4f6e-44f9-bc53-643da7fdf684n%40googlegroups.com.

[Arlen Heginbotham]

Hi Craig, another option is to quantify using a fundamental parameters method with pymca And a common charm standard set. This method has good reproducibility between laboratories if that's important to you. 

https://onlinelibrary.wiley.com/doi/full/10.1111/arcm.12282

Arlen Heginbotham, Ph.D.

Conservator

J. Paul Getty Museum

1200 Getty Center Drive

Los Angeles, California. 90049

310-440-7178

---

From: px...@googlegroups.com <px...@googlegroups.com> on behalf of Lee Drake <b.lee...@gmail.com>
Sent: Monday, November 11, 2024 12:42:38 PM
To: px...@googlegroups.com <px...@googlegroups.com>
Subject: Re: [pxrf] Artax

To view this discussion visit https://groups.google.com/d/msgid/pxrf/CAEvfoRQw6vYFGnAOa2NdZuFyx_89_3hp%2BMC55ZKfd5bszzOu1A%40mail.gmail.com.

CAUTION: This email originated from outside of the Getty. Do not click links or open attachments unless you verify the sender and know the content is safe.

[Adrian Roxburgh]

I can agree with Arlen,

 

We have used the charm  standards to’ daisy chain’ several different pXRF machines together for data reproducibility.   Brucker, Niton and Elvatech machines. Admittedly just for bulk element analyses though.

 

Cheers

 

Marcus A

 

To view this discussion visit https://groups.google.com/d/msgid/pxrf/DS0PR05MB9643E7389F7EDC285369EDC7CA592%40DS0PR05MB9643.namprd05.prod.outlook.com.