I run ddscat 7.3,and calculate nearfield ,but only get electrical field, I change ddpostprocess.f90 according instruction in the end code but in output I cant get polarization vector,. Should I change in ddpostprocess.par? or ddpostprocess.f90 ?

Thanks,

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

Insufficient information to be able to comment on this. Size, aspect ratio, wavelength, orientation…?. What version of DDSCAT are you using? Did DDSCAT claim to meet the error tolerance?

Also: DDSCAT does not work well when the dielectric function is very large, so you may not be able to calculate for gold in the

infrared.

Forum category: DDSCAT / General discussion

Forum thread: Longitudinal Polarization ]]>

DDA solution for polarization considering a gold nanorod shows an interesting pattern. The well-documented pattern (i.e. maximum @90°and minimum @180°) was obtained when the transverse wavelength was considered and beta, theta, and phi were set to zero. Using the same settings, the polarization patterns obtained for the longitudinal wavelength show patterns which deviate from their physical picture.

Please suggest the required modification that I need to make for obtaining the correct polarization pattern.

Thanks and regards,

Hirak

Forum category: DDSCAT / General discussion

Forum thread: Longitudinal Polarization ]]>

DDSCAT —- DDSCAT 7.3.2 [17.01.25]

Forum category: DDSCAT / General discussion

Forum thread: Running ddscat with MPI ]]>

I want to calculate the polarization of two spheres.

One sphere has 1.33+0.01i refractive index and another sphere has 1.9+0.45i.

So I set ddscat.par such as :

2 = NCOMP = number of dielectric materials

'../diel/m1.33_0.01'

'../diel/m1.90_0.45'

Then, m1.33+0.01i is number 1 and m1.90++0.45i is nuber 2. Is it right?

And I set BAM file such as :

x y z a IC1 IC2 IC3 theta_DF phi_DF beta_DF

0.000000 0.000000 0.000000 0.500000 1 1 1 0.00000 0.00000 0.00000

0.000000 1.000000 0.000000 0.500000 2 2 2 0.00000 0.00000 0.00000

Because a sphere at (0,0,0) has m=1.33+0.01i which is number 1, so I set IC1=IC2=IC3=1.

And also at a sphere at (0,1,0) , I set IC1=IC2=IC3=2 because m=1.90++0.45i is nuber 2.

Is it right?

I can't sure that means of number of IC1, IC2, IC3.

Forum category: DDSCAT / General discussion

Forum thread: SPH_ANI_N : BAM file ]]>

DDSCAT —- DDSCAT 7.3.2 [17.01.25]

which will tell you the vintage of your software. Early versions of DDSCAT did have bugs in the MPI implementation, but the current release was thought to handle MPI correctly.

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

will begin with a line like

DDSCAT —- DDSCAT 7.3.2 [17.01.25]

which will tell you the vintage of your software. Early versions of DDSCAT did have bugs in the MPI implementation, but the current release was thought to handle MPI correctly.

Forum category: DDSCAT / General discussion

Forum thread: Running ddscat with MPI ]]>

I am a new user of ddscat.

I try to calculate scattering and absorption efficiencies of metal nanoparticles of arbitrary shapes and sizes.

I did a serial calculation with a sphere easily. but when I try a parallel calculation with MPI, I find very high values.

It is the same for all the algorithms

ZBCG2 IT= 1 f.err= NaN

…

cgcommon ckpt 20

iter= 8 frac.err= NaN

…

GPBICG IT= 10 f.err= 6.167E+00

…

…

sqrt(rnorm/bnorm)= 3 174106950333229.

sqrt(rnorm/bnorm)= 4 NaN

Other codes using MPI have been successfully implemented in our system, and the job submission procedures are correctly implemented.

The administrator followed all the instructions in the USer Guide. Did we miss an important information?

Regards

Forum category: DDSCAT / General discussion

Forum thread: Running ddscat with MPI ]]>

I am a new user of ddscat.

I try to calculate scattering and absorption efficiencies of metal nanoparticles of arbitrary shapes and sizes.

I did a serial calculation with a sphere easily. but when I try a parallel calculation with MPI, I find very high values.

It is the same for all the algorithms

ZBCG2 IT= 1 f.err= NaN

…

cgcommon ckpt 20

iter= 8 frac.err= NaN

…

GPBICG IT= 10 f.err= 6.167E+00

…

…

sqrt(rnorm/bnorm)= 3 174106950333229.

sqrt(rnorm/bnorm)= 4 NaN

Other codes using MPI have been successfully implemented in our system, and the job submission procedures are correctly implemented.

The administrator followed all the instructions in the USer Guide. Did we miss an important information?

Regards

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

Forum category: DDSCAT / General discussion

Forum thread: target size ]]>

C_abs= 4pik/E0^2 SUM_j=1^N [Im(P_j*(alpja_j) conj(Pj) - 2/3 k^2 P_j^2] (eq. 9)

and efficiency Q_abs is normalized C_abs (see DDSCAT User Guide https://arxiv.org/abs/1305.6497, section Absorption and Scattering By Finite targets). DDSCAT is calculating polarizations P_j in EVERY point of the shape/object. Thus, you can split the sum given in eq. 9 into contributions from subset of shape locations - for example upper part of disk and lower part of a disk. So if this is what you are interested in, the answer is yes. I think that the practical way of doing it is to store P_j and recalculate C_abs yourself. For that you can use nearfield option in DDSCAT. But, you can also get to the DDSCAT code and change the summation there (you will need to know FORTRAN and recompile the code).

Forum category: DDSCAT / General discussion

Forum thread: How to simulate a spherical Target at the interface air/dielectric (epsilon dielectric is 2) ]]>

More specifically, suppose that I am trying to model a surface as a rectangular disk (as you describe above) and there is a spherical particle of different material on top of it. Can I have absorption efficiency of the particle on top separately? When I do the calculations what I see is the absorption efficiency of the whole system.

If yes, I will try to model core-shell particle on top of a surface (there will be at least 3 different materials! surface, core and shell). Can I calculate absorption efficiencies of each material? Is it possible?

Thank you for your help.

Have a nice day.

Forum category: DDSCAT / General discussion

Forum thread: How to simulate a spherical Target at the interface air/dielectric (epsilon dielectric is 2) ]]>

"Wxxxryyykzzz.poln" file is unformatted(binary file), and I cant read this file.I want to read data of file.

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

Shape parameter 1 should be *larger* than parameter 4, parameter 2 larger than parameter 5, and parameter 3 larger than parameter 6.

Hence if you wish to do concentric spheres, you could set shape parameters 1-6 to

60 60 60 40 40 40

Forum category: DDSCAT / General discussion

Forum thread: Error in code when running for CONELLIPS target. ]]>

I am using DDA to calculate the optical properties such as absorption, scattering and extinction for "CONELLIPS" shape (Two -layers). I have no idea about CONELLIPS shape, this type of target geometry is in-built or not. I have only changed the target geometry-(ELLIPSOID to CONELLIPS) and the composition-(40 40 40 60 60 60 = shape parameters 1 - 6) and run the code for two different materials. After that, i got the error as given below:

Error: FATAL ERROR IN PROCEDURE: TARCEL

AX < BX

EXECUTION ABORTED

Forum category: DDSCAT / General discussion

Forum thread: Error in code when running for CONELLIPS target. ]]>

2. It is unclear what you mean by "cannot compile 2xxxryyykzzz.poln". Please clarify.

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

For DDSCAT, the closest approximation to the posed problem would be to calculate the finite target placed at the surface of a rectangular block with the desired dielectric function representing the semi-infinite substrate. Use a block that is as large as you can afford, and repeat the calculation for different block sizes to see whether the results seem to be sensitive to the size of the block. This method is inelegant and unfortunately not very efficient; memory limitations will limit the size of the slab, given that the interdipole spacing d needs to be small enough to resolve the target geometry.

If your target happens to be a disk, you can use target option DSKRCTNGL. If your target happens to be a rectangular block, you can use target option RCTGLBLK2. If your target has another geometry, you can use target option FROM_FILE, and use your own software to prepare a file with the list of dipoles locations and compositions.

Forum category: DDSCAT / General discussion

Forum thread: How to simulate a spherical Target at the interface air/dielectric (epsilon dielectric is 2) ]]>

The UserGuide describes how the input file for target option FROM_FILE should be formatted. There is a sample calculation in the examples/FROM_FILE directory.

Keep in mind that if one has a multilayer target, the interdipole spacing d should be small enough to resolve the thickness of the thinnest layer. One should always do a "resolution study" to verify that your results are not sensitive to your choice of interdipole spacing d.

Forum category: DDSCAT / General discussion

Forum thread: Multilayered Ellipsoid ]]>

I am working with ellipsoid Nanomatryushka particles having two or more layers. I need to simulate values for the Muller Matrices for the kind of particles. Can I do it with DDSCAT? Can I model Fano Resonance with it?

If I need to modify the CONELLIPSE section for my use, how can I do it?

Regards,

Hirak

Forum category: DDSCAT / General discussion

Forum thread: Multilayered Ellipsoid ]]>

Thank you

Forum category: DDSCAT / General discussion

Forum thread: How to simulate a spherical Target at the interface air/dielectric (epsilon dielectric is 2) ]]>

I am work with ddscat7.2. Now I want plot polarization direction in each point.

but I cant compile wxxxryyykzzz.poln .Could you help me.

Thank you in advance.

Forum category: DDSCAT / General discussion

Forum thread: polarization vector ]]>

I understand!!

Forum category: DDSCAT / General discussion

Forum thread: CYLNDRPBC : 2-d periodic ]]>

For 2-d periodic targets, the transmitted beam has the same theta as the incident beam.

For your example, the transmitted beam has theta=30.

In your example, S_11 for the transmitted beam appears to be very small.

The reflected beam is propagating at theta=180-30=150 deg

S_11 for this beam is the reflection coefficient, 0.816

As described in section 22.10 of the UserGuide, the ddscat distribution includes examples_exp/RECTCL_PBC as a "worked example". You may want to verify that you can repeat this calculation.

Forum category: DDSCAT / General discussion

Forum thread: CYLNDRPBC : 2-d periodic ]]>

If I set theta=30 in 2-d periodic target,

then the incident direction is theta=-30 and

the scattering direction is theta=30 and theta=150.

And scattering direction that theta=30 is reflected direction and

scattering direction that theta=150 is penetration direction.

Is it right?

Forum category: DDSCAT / General discussion

Forum thread: CYLNDRPBC : 2-d periodic ]]>

In pbcscavec.f90, I found that

! scattering angle is neither zero nor pi

! scattering plane is therefore defined by k_0 and k_s .

Why scattering angle is neither zero nor pi?

And I carried out with following ddscat.par

'RCTGL_PBC' = CSHAPE*9 shape directive

30.0 1.0 1.0 1.0 1.0 = shape parameters 1 - 5

BETA = 0.000

THETA= 30.000

PHI = 0.000

and I got the out file 'w000r000k000.sca' like that

Mueller matrix elements for selected scattering directions in Target Frame

theta phi Pol. S_11 S_12 S_21 S_22 S_31 S_41

30.00 180.00 0.00009 9.9946E-01 -8.9653E-05 -8.965E-05 9.995E-01 5.805E-23 5.528E-25

150.00 180.00 0.81600 1.3728E-05 -1.1202E-05 -1.120E-05 1.373E-05 1.161E-24 1.372E-26

Why scattering directions are theta=30 and theta=150?

I can't understand.

Please advise to me.

Forum category: DDSCAT / General discussion

Forum thread: CYLNDRPBC : 2-d periodic ]]>

MPI.f = $(MPI_f)

MPI.o - $(MPI_o)

i.e., there should be no space between the $ and (

2. When you compile and link, which of the following do you see used?

mpi_subs.f90 etc. on compilation and mpi_subs.o on linking,

or mpi_fake.f90 and mpi_fake.o ?

Forum category: DDSCAT / Report errors

Forum thread: Using DDSCAT with MPI for nearfield calculations: fixed in DDSCAT 7.3.2 ]]>

other codes using MPI have been successfully implemented in our system, therefore ours should be able to work too. Also, the job submission procedures are correctly implemented in our system. We have followed all the instructions in the USer Guide: we changed the PBCGS2 parameter to PBCGST in the file ddscat.par; also, in the "Makefile" we commented the initial parameters and commented the necessary ones:

DMPI = -Dmpi

MPI.f = $ (MPI_f)

MPI.o = $ (MPI_o)

Nevertheless, it still does not seem to work. Should we be changing any other parameters? If not, is there any parameter we stated incorrectly?

Thank you very much again.

Forum category: DDSCAT / Report errors

Forum thread: Using DDSCAT with MPI for nearfield calculations: fixed in DDSCAT 7.3.2 ]]>

I study scattering using DDSCAT7.3.

I have some questions about CYLNDRPBC.

I want to make regolith using CYLNDRPBC, so I wrote shape parameter such like ::60.0 1.0 1 1.0 1.0 .

Then, in the output file 'w000r000k000.sca', there are only two theta values(0, 180)

I want to (0~180)theta value.

How can I do?

Forum category: DDSCAT / General discussion

Forum thread: CYLNDRPBC : 2-d periodic ]]>

Forum category: DDSCAT / General discussion

Forum thread: 53/5000 E is calculated on all volumes of nano-particles in the wavelength range ]]>

Have you succeeded running any other code using MPI on your system?

Forum category: DDSCAT / Report errors

Forum thread: Using DDSCAT with MPI for nearfield calculations: fixed in DDSCAT 7.3.2 ]]>

I am executing ddscat as a part of a University Thesis and I am having trouble using MPI for parallel calculations. I have followed all the instructions in the User Guide, having changed all the parameters necessary in both files "ddscat.par" and "Makefile". Once compiled, I am having trouble making the code understand it has to separate itself in different cores: it keeps on calculating everything in a single node. How do I manage to tell the code to run separately? Is there a parameter I should change that I don't know about?

Thank you!

Forum category: DDSCAT / Report errors

Forum thread: Using DDSCAT with MPI for nearfield calculations: fixed in DDSCAT 7.3.2 ]]>

Forum category: DDSCAT / General discussion

Forum thread: 53/5000 E is calculated on all volumes of nano-particles in the wavelength range ]]>

For periodic targets (such as CYLNDRPBC), DDSCAT requires that the scattering directions be specified in the target frame (TFRAME).

Forum category: DDSCAT / General discussion

Forum thread: scattering directions ]]>

Section 29 of the UserGuide describes what to do.

When you run with NRFLD=1, ddscat will create binary files wxxxryyykzzz.poln

The program ddpostprocess can read these files and write out selected data, such

as the polarizations, in files that can be used by other software, such as VTK.

Please see section 30.1 of the UserGuide.

You may wish to modify DDPOSTPROCESS.f90 to better meet your needs — see section 30.2 of the UserGuide.

Forum category: DDSCAT / Report errors

Forum thread: meet a problem? asking for help! ]]>

but I cant compile wxxxryyykzzz.poln .Could you help me

Forum category: DDSCAT / Report errors

Forum thread: meet a problem? asking for help! ]]>

and effective radius of equal volume sphere is aeff= (3*V/4*pi)^(1/3)= 17.3 nm. i get only one peak but according to theory we should get two peaks (transverse and Longitudinal ).

Please suggest me how i can choose direction of polarization and shape parameters.

what is relation between shape parameters and effective radius.

Forum category: DDSCAT / General discussion

Forum thread: target size ]]>

Forum category: DDSCAT / General discussion

Forum thread: Error: bash - ddscat: command not found ]]>

Forum category: DDSCAT / General discussion

Forum thread: Error: bash - ddscat: command not found ]]>

Forum category: DDSCAT / General discussion

Forum thread: erythrocyte model ]]>

Unfortunately, we have not provided "worked examples" for these three cases, but it should be straightforward for you to examine some of the "worked examples" in the distribution, and consult the UserGuide to understand how to modify the input file ddscat.par for the cases you are interested in.

Forum category: DDSCAT / General discussion

Forum thread: examples like ANI_ELL_2 ELLIPSO_2 and SPHROID_2 ]]>

to indicate which target shape you need. You can use CALLTARGET to examine various shapes (test shape generation) graphically. Each shape has its corresponding FORTRAN code which always begins with tar*, e.g. tarhex.f90. Sometimes it is convenient to look at these codes to see how the shape is created. You can also modify such code and create your own shape file (there are other ways of doing it as well).

Forum category: DDSCAT / General discussion

Forum thread: examples like ANI_ELL_2 ELLIPSO_2 and SPHROID_2 ]]>

I am research scholar in IIT Delhi, India. My research work is related to find the optical properties of the Nano-particles of different materials and different geometries. I found that the DDSCAT 7.3 is one of the most prominent code to study the characteristically properties of the different geometries. I am highly interested to find the optical properties for such geometries like ANI_ELL_2 ELLIPSO_2 and SPHROID_2. I have downloaded the user guide for DDSCAT 7.3 and its related examples from site of DDSCAT, But I did not found any example related to ANI_ELL_2, ELLIPSO_2 and SPHROID_2geometries.

Could you please provide the us these Examples (code) with their supporting files. The files will help me to study the optical properties of above geometries, which is very useful to enhance the efficiency of photovoltaics.

I will be highly obliged to your favor.

Thanking you

With Warm Regards

Shivani Bhardwaj

Forum category: DDSCAT / General discussion

Forum thread: examples like ANI_ELL_2 ELLIPSO_2 and SPHROID_2 ]]>

First: please use the latest release (7.3.2) from www.ddscat.org

The nearfield is the *total* "macroscopic" E field, including the

contribution of the incident wave. Section 29 of the UserGuide discusses

the distinction between microscopic and macroscopic E fields.

The nearfield is calculated on a grid throughout the user-specified

volume. Obviously, very large volumes imply very long computations

and memory requirements.

The scattering matrix S_ij describes the scattered field in the

"radiation zone" far from the target, where the scattered E field

falls off as 1/r .

Regarding Gaussian beams — if you know how the incident electric field

varies over the target volume, you can easily modify the subroutine

evale.f90 to generate the incident field at each lattice site in the

computational volume. I *think* that this would be the only required

change required to use "Gaussian beams".

Best,

Bruce T. Draine

Forum category: DDSCAT / General discussion

Forum thread: wxxxryyykzzz.En ]]>

Hi Dr. Draine,

We have decided to use the Fortran version of DDSCAT, rather than the C++

version; yours is much more up to date, reliable, and developed (probably

because DDSCAT seems to be your idea and creation in the first place). We

are using it on a high-performance computer because of the processing

requirements.

The DDSCAT program is incredible; the development of it over the years is

proving very useful for people like us using it in independent research.

We are currently trying to use the program to model simple reflection and

refraction, where we convert the incident light as a Gaussian beam into

Electric field components to simulate a plane wave, then convert the

output E-field back into a wave. We are trying to make our own code to generate

visualization graphics; and we believe that this method will allow us to

use DDSCAT for twisted light rather than regular plane waves.

I was hoping you could speak a little to the meaning of the outputs: I do

believe that the wxxxryyykzzz.En binary output is the one we want to use

for our calculations. Are you defining the near field as such because it is

the sum of the incident field and the scattered field? I am a little bit

confused on this; most things discussing near-field and far-field

radiation seem to indicate that there may be some other important difference between

the two fields.

So… I am hoping to clarify that E_sca is indeed the E field that we will

be able to process in order to create our scattered light waveforms. If you

can clarify this for me, that would be awesome. Otherwise, I'm sure with

the help of our professor my group will be able to figure out a solution.

Thank you very much for your time.

Best,

Josh Graber

Forum category: DDSCAT / General discussion

Forum thread: wxxxryyykzzz.En ]]>

Thanks for catching this bug — you can see that we haven't used 7.3.2 for

nearfield calculations…

I'll upload a new distribution of the 7.3.2

source to www.ddscat.org shortly.

Best,

—Bruce

Forum category: DDSCAT / General discussion

Forum thread: ddpostprocess problem ]]>

statement ensuring the correct version is used. This statement includes

7.3.0 and 7.3.1 but not 7.3.2, so it was just one small bug but I thought

you'd like to know about it. Everything works great once that line is

changed.

-Josh

Forum category: DDSCAT / General discussion

Forum thread: ddpostprocess problem ]]>

We have the latest release of ddscat up and running on the high

performance computing center here; however we need the ASCII files as

ddpostprocess.out is said to contain.

The ddposprocess.out file doesn't show up though, and the ddscat.log

file says

"file = w000r000k000.E1

file is incompatible with present version of subroutine SUBREADNF"

We think that might be our problem. Could you possibly speak to that? I

don't know if it's something wrong with the way it was set up on our

system of if there is some new update or an error in the subroutine, but

anything you could give us would help a lot.

Thanks,

Josh Graber

Forum category: DDSCAT / General discussion

Forum thread: ddpostprocess problem ]]>

and run the ddscat.exe from there

But you can also CD to

example_exp\ELLIPSOID

and run ddscat.exe by providing its full name, say

C:\Users\Piotr\Desktop\ddscat\bin_mingw64_gfortran_single_nompl_nompi\ddscat.exe

Piotr

Forum category: DDSCAT / General discussion

Forum thread: File 'ddscat.par' does not exist ]]>

Forum category: DDSCAT / General discussion

Forum thread: File 'ddscat.par' does not exist ]]>

Forum category: DDSCAT / General discussion

Forum thread: meet a problem? asking for help! ]]>

FATAL ERROR IN PROCEDURE: ZBCG2WP

ITERN>ITERMX

EXECUTION ABORTED

How to solve this problem? Thanks a lot!

Forum category: DDSCAT / Report errors

Forum thread: meet a problem? asking for help! ]]>

»»> ITERN>ITERMX

»»> EXECUTION ABORTED

How to solve this problem?

Forum category: DDSCAT / General discussion

Forum thread: meet a problem? asking for help! ]]>

Forum category: DDSCAT / General discussion

Forum thread: Ignoring multiple scattering ]]>

Forum category: DDSCAT / General discussion

Forum thread: Ignoring multiple scattering ]]>

Forum category: DDSCAT / General discussion

Forum thread: erythrocyte model ]]>

Forum category: DDSCAT / General discussion

Forum thread: erythrocyte model ]]>

anyway, the first four answers has solved my concerns. thanks again!^_^

regarding the fifth, is there any further information available now? or could you give an example?

Forum category: DDSCAT / General discussion

Forum thread: erythrocyte model ]]>

1) The size parameter can be large as long as mkd < 1 is satisfied, x=15 is not the limit of DDA. For example in our paper Flatau/Draine, 2014 "Light scattering by hexagonal columns in the discrete dipole approximation" in 2014, we solved x=400 (but for 2D case).

2) Mesh 96x96x24 should not be a problem as far as computer memory goes. The CPU time my be long.

3) Small differences of the aspect ratio should not influence scattering properties that much. The way to see the effect of resolution is to run the same problem with different number of dipoles.

4) To get an idea about DDSCAT accuracy it makes sense to solve a simpler problem. For example may want to solve scattering by a sphere and compare it with Mie (BHMIE) for your x and refractive index and vary number of dipoles to see what is the effect of grid size.

5) Your problem has cylindrical symmetry and perhaps there are other techniques which would be more suitable (not DDA).

Piotr Flatau

Forum category: DDSCAT / General discussion

Forum thread: erythrocyte model ]]>

after the construction of the lattice mesh, when I double check the data which will be passed to ddscat.exe, I find the following two points:

1.the x=k*aeff is up to 20.7(632.8nm, refraction index is 1.42)

2.in ddscat.exe, the d1:d2:d3 is 1:1:1 (d=[d1 d2 d3], lattice space).

firstly, let us focus on x=k*aeff, in the Draine's paper, it is found the maximum x is 15, so the question needing your help is: whether the x>20 can be solved by ddscat.exe with a acceptable level of error? or regardless of the x, the output of the ddscat.exe will be correct with an acceptable level of error so long as the condition of mkd<1 is met. even thought this will result in the large number of lattice when the x is so big, just as the above of 139389 lattices!!!

secondary, the ratio of d1:d2:d3, when the diameter of the erythrocyte is set at 6.3um, the erythrocyte model provides an erythrocyte with aspect ratio of 4.12:1:4.12:1. this is why I set the number of the intervals for x, y, z axis 96,96,24 respectively. however, 96:96:24=4:4:1 is not equal to 4.12:4.12:1. the difference between 4:4:1 and 4.12:4.12:1 can not be taken into account by ddscat.exe (because the ddscat.exe use aeff to set the lattice space"d=aeff*(4*pi/(3*N))^(1/3)"), as a result, the particle appearance is also different from the erythrocyte model, although the difference is small. but how about the effect of the difference on the scattering calculation?

Forum category: DDSCAT / General discussion

Forum thread: erythrocyte model ]]>