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Anonymous

How to keep the target size constant and reduce the dipole distance or total number of dipoles?

Hello,

I'm using the current nanoDDSCAT+ version 2.1.

I created a target using the build-in blender, and uploaded the blender file in the DDSCAT Shape File Converter.

I'm wondering, how to vary the total number of dipoles, while keeping the target size constant? This would help to reduce the simulation time...

Under the option "Choose how to populate the shape with Dipoles", I tried all three opportunities:

1) Dipoles per Nanometer

   --> Varying the "dipole number per nanometer" defines the actual size of the target in the shape file. For large target sizes of about 200-400nm, the total number of dipoles becomes very larg (> 500 000). There is no option to define the total dipole number.

2) Dipoles along Max Cartesian Dimensions

--> Varying the "dipole length of longest cartesian axis" defines the actual size of the target in the shape file. Again, the total number of dipoles becomes very larg, since there is no option to define the distance between the dipoles (dioles per nanometer).

3) Total Dipole Volume

--> Varying the "total dipole count" defines the actual size of the target in the shape file. Once again, the total number of dipoles becomes very larg - no option to define the distance between the dipoles (dioles per nanometer).

I also modified the relative target sizes in blender, but same result.

The "Video Tutorial for nanoDDSCAT+" explains very nice how to define the actual target size, but the current nanoDDSCAT+ version is different.

Thank you in advance!

 

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    Prashant K Jain

    Let me attempt to address the question.

    The question isn't fully clear because it refers to target size multiple times. But, if I understand correctly, I think you want to know how to change the dipole density so that you can set it low enough to keep the computational time reasonable.

    The dipole density can be set as one of the inputs. There is an option to set it low or high. The target size is set in Blender, which ought to remain unchanged when you pick a dipole density. 

    Hope his helps,

    Prashant

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      Anonymous

      In the "Video Tutorial for nanoDDSCAT+" it was claimed that Blender only defines the "relative" target size and not the "actual" target size. But, obviously I made a wrong assumption.

      Thank you for the fast response!

       

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