spatial distribution in PENEPMA in Calczaf/Standard

[Ben Buse]

Hi, I thought I'd start a wish list -

The GUI you have for PENEPMA makes it very easy to use - I was just trying out batch and k-ratios for oxide inclusion in glass, very easy.

I wondered if you'd considered including spatial information. Currently this can be done via the "Edit input file" - as mentioned in the PENEPMA manual - including the following in .in file

Code: [Select]

       >>>>>>>> Spatial distribution of events.
GRIDX  -1e-5 1e-4 [X coordinates of the box vertices]
GRIDY  -1e-4 1e-4 [Y coordinates of the box vertices]
GRIDZ  -6e-5 0. [Z coordinates of the box vertices]
GRIDBN 1 1 60 [Numbers of bins]
XRAYE  6.3e3 6.5e3 [Energy interval where x-rays are tallied]
XRAYE  1.7e3 1.8e3 [Energy interval where x-rays are tallied]
This record spatial information about x-ray emission. As detailed in Llovet & Salvat 2016

http://iopscience.iop.org/article/10.1088/1757-899X/109/1/012009/pdf

This allows you to determine spatial resolution (plots of xray radial distribution), phi-rho-z emission curves, and maps of emission generation. Which can easily be plotted in gnuplot with script files - although plotting within standard would be very nice! Sounds like a lot of work. Maybe a long term project?

Ben

[Ben Buse]

I've just been comparing spatial resolution (radial x-ray distribution) from casino to penepma from Llovet & Salvat paper 2016. 4kV Si Metal, Si KA x-rays emitted

http://iopscience.iop.org/article/10.1088/1757-899X/109/1/012009/pdf



Casino does a good job closely approximating penepma, if you took the 10 percentile, you'd get same resolution.

I'm just now working out how to do it using penepma, using pe-map-01-x.dat which is noisy or integrating z in pe-map-01-yz.dat in excel macro.

Ben

[John Donovan]

Hi Ben,
Those plots cover quite a range of possibilities!   Not exactly a lot of agreement!   Frankly I would tend to trust Penepma over Casino.

On your suggestion to add spatial distribution output/plotting to the Penepma GUI, of course anything can be added, it's just more work!   

That said, the Penepma GUI in Standard is really intended for a basic introduction to using Penepma.  I wanted to make it simple so people can get started easily.

Do you have Pinard's pyPenelope GUI?  It's a little more work to use but I think it includes options for spatial distribution output- not sure about plotting.
john

[Ben Buse]

Yes I guess also there is a point when you can't avoid the complexities of PENEPMA, and then it requires an understanding of the program and fine tuning the parameters for the task in hand.

Thanks

Ben

[Ben Buse]

I'm just now working out how to do it using penepma, using pe-map-01-x.dat which is noisy or integrating z in pe-map-01-yz.dat in excel macro.

Ben

For lateral resolution in penepma pe-map-01-radial.dat is the way to go in the latest version