Groups
Conversations
All groups and messages
Send feedback to Google
Help
Training
Sign in
Groups
mcx-users
Conversations
About
Groups keyboard shortcuts have been updated
Dismiss
See shortcuts
mcx-users
1–30 of 840
Mark all as read
Report group
0 selected
Long Chen
,
Qianqian Fang
7
3:52 PM
Simulation problem
hi Long, mcx output these data types (see this section of the README: https://github.com/fangq/mcx?
unread,
Simulation problem
hi Long, mcx output these data types (see this section of the README: https://github.com/fangq/mcx?
3:52 PM
Qianqian Fang
May 18
Re: [mcx-users] Questions About MMC Pathlength, Fluorescence, and Jacobian Validity
hi Zobia, see my replies below On 5/16/25 18:01, Zobia Chaudhry wrote: You don't often get email
unread,
Re: [mcx-users] Questions About MMC Pathlength, Fluorescence, and Jacobian Validity
hi Zobia, see my replies below On 5/16/25 18:01, Zobia Chaudhry wrote: You don't often get email
May 18
h h liu
,
Qianqian Fang
6
May 13
Energy Normalization and Analog Output Units
Thank you Dr. Fang for your patience, with your help my problem was solved, thank you again Dr. Fang!
unread,
Energy Normalization and Analog Output Units
Thank you Dr. Fang for your patience, with your help my problem was solved, thank you again Dr. Fang!
May 13
Sujit Patil
,
Qianqian Fang
6
May 12
MCX Diffuse Reflectance for Non-Flat Surfaces
hi Sujit, sorry for the delayed reply. see my comments below On 5/7/25 10:47, Sujit Patil wrote: Dear
unread,
MCX Diffuse Reflectance for Non-Flat Surfaces
hi Sujit, sorry for the delayed reply. see my comments below On 5/7/25 10:47, Sujit Patil wrote: Dear
May 12
Ilya Kuznetsov
,
Qianqian Fang
5
Apr 30
Slightly different results on differents MCX and environments
Thanks! Yes, I meant mcxcwdref.m. On Wednesday, April 30, 2025 at 5:48:35 PM UTC+3 q.fang wrote: if
unread,
Slightly different results on differents MCX and environments
Thanks! Yes, I meant mcxcwdref.m. On Wednesday, April 30, 2025 at 5:48:35 PM UTC+3 q.fang wrote: if
Apr 30
Wenxin Fang
, …
Qianqian Fang
4
Apr 30
Absorbance coefficient mu_a's impact on the simulation result.
if they have the same mus, then their (scattering) mean-free-paths (1/mus) should the same. On 4/29/
unread,
Absorbance coefficient mu_a's impact on the simulation result.
if they have the same mus, then their (scattering) mean-free-paths (1/mus) should the same. On 4/29/
Apr 30
Viet Tran Ba
,
Qianqian Fang
4
Apr 30
Option of getting the photon exit weight
hi Viet, MCX applies normalization by default (-U 1). This not only applies to fluence, but also dref
unread,
Option of getting the photon exit weight
hi Viet, MCX applies normalization by default (-U 1). This not only applies to fluence, but also dref
Apr 30
zhang haohui
,
Qianqian Fang
7
Apr 18
Reflection energy
Hello, Prof. Fang, Thank you for the explanation — I now understand your method. You consider
unread,
Reflection energy
Hello, Prof. Fang, Thank you for the explanation — I now understand your method. You consider
Apr 18
Jack Radford
,
Qianqian Fang
4
Apr 17
Linux stuck at 50% simulation
Hi Qianqian, Excellent, I have got it working with this patch. Thank you for fixing this bug so
unread,
Linux stuck at 50% simulation
Hi Qianqian, Excellent, I have got it working with this patch. Thank you for fixing this bug so
Apr 17
Brighten Pan
,
Qianqian Fang
5
Apr 17
position of source
Hi Prof. Fang, Thank you for your suggestion. I will try this to check my model. Thanks again for
unread,
position of source
Hi Prof. Fang, Thank you for your suggestion. I will try this to check my model. Thanks again for
Apr 17
Vytautas Gradauskas
,
Qianqian Fang
2
Apr 16
How to interpret MCX command window output
hi Vytautas, you were at our training workshop last year, if you open the training materials folder,
unread,
How to interpret MCX command window output
hi Vytautas, you were at our training workshop last year, if you open the training materials folder,
Apr 16
Lyn Pace
,
Qianqian Fang
2
Apr 16
Launch timed out MCX cloud
hi Lynley, the "the launch timed out" error was a classic NVIDIA graphics driver watchdog
unread,
Launch timed out MCX cloud
hi Lynley, the "the launch timed out" error was a classic NVIDIA graphics driver watchdog
Apr 16
Long Chen
,
Qianqian Fang
2
Apr 12
Is there a limit to the number of different tissues that can be stored in the cfg.vol array?
hi cl, if you use label based tissues, the maximum number is 4000 - #srcpos - #detpos, but you can
unread,
Is there a limit to the number of different tissues that can be stored in the cfg.vol array?
hi cl, if you use label based tissues, the maximum number is 4000 - #srcpos - #detpos, but you can
Apr 12
Qianqian Fang
Mar 30
Invitation to submit a short survey for sharing imaging data at NeuroJSON.io
Dear colleagues and registered MCX users, I would like to invite you to participate a short survey to
unread,
Invitation to submit a short survey for sharing imaging data at NeuroJSON.io
Dear colleagues and registered MCX users, I would like to invite you to participate a short survey to
Mar 30
Liam Booth
,
Qianqian Fang
5
Mar 16
Creating jacobian of same format as TOAST++
Ahh, i've moved ahead a few steps and i'm at the reconstruction part of my pipeline which i
unread,
Creating jacobian of same format as TOAST++
Ahh, i've moved ahead a few steps and i'm at the reconstruction part of my pipeline which i
Mar 16
Thomas Rialan
,
Qianqian Fang
2
Mar 14
question about cfg.isnormalized
thanks, it is now fixed https://github.com/fangq/mcx/commit/aa7bbddeea30771adb22cf40cbcfc81881a5218c
unread,
question about cfg.isnormalized
thanks, it is now fixed https://github.com/fangq/mcx/commit/aa7bbddeea30771adb22cf40cbcfc81881a5218c
Mar 14
Rooaa Shanshal
,
Fang, Qianqian
3
Mar 14
Multiple GPU Photon Sharing
Hi Dr. Fang, Sorry for the delay. I opened a new issue on GitHub a couple of days ago but I've
unread,
Multiple GPU Photon Sharing
Hi Dr. Fang, Sorry for the delay. I opened a new issue on GitHub a couple of days ago but I've
Mar 14
于赛薇
,
Qianqian Fang
3
Mar 10
Inquiry Regarding MCXLAB Usage for Layered Media Simulation
Dear Professor Fang, First of all, thank you very much for your reply to my question. Reading your
unread,
Inquiry Regarding MCXLAB Usage for Layered Media Simulation
Dear Professor Fang, First of all, thank you very much for your reply to my question. Reading your
Mar 10
Shiru Wang
, …
Qianqian Fang
7
Mar 10
Reflectance Calculation in PMCX
no worries, I hope my response to your question earlier was helpful - feel free to follow up if you
unread,
Reflectance Calculation in PMCX
no worries, I hope my response to your question earlier was helpful - feel free to follow up if you
Mar 10
Qianqian Fang
Mar 9
Re: [mcx-users] mcxlab
reading your question below, I am under the impression that you must have assumed that the output,
unread,
Re: [mcx-users] mcxlab
reading your question below, I am under the impression that you must have assumed that the output,
Mar 9
zhiguan wang
, …
Vytautas Gradauskas
4
Mar 6
the positive value in Jacobian
Hi all, This reminded me of a video that Prof Fang has on mcx.space about absorption and scattering
unread,
the positive value in Jacobian
Hi all, This reminded me of a video that Prof Fang has on mcx.space about absorption and scattering
Mar 6
Rooaa Shanshal
Mar 5
Using Photon Sharing with Multiple GPUs
Dear Dr. Fang, I'm currently working on generating SFDI reflectance images using the photon-
unread,
Using Photon Sharing with Multiple GPUs
Dear Dr. Fang, I'm currently working on generating SFDI reflectance images using the photon-
Mar 5
Naim Slim
,
Qianqian Fang
3
Feb 27
Multiple sources with mcxlabcl
Thanks for the prompt response! BW Naim On Wednesday, February 26, 2025 at 3:26:50 PM UTC Qianqian
unread,
Multiple sources with mcxlabcl
Thanks for the prompt response! BW Naim On Wednesday, February 26, 2025 at 3:26:50 PM UTC Qianqian
Feb 27
Yu Shimojo
, …
Fang, Qianqian
8
Feb 23
Fresnel's law at media boundaries with mismatched refractive indices
Hi Yu, I was able to reproduce the misaligned memory error on my 4090 as well. It appears that the
unread,
Fresnel's law at media boundaries with mismatched refractive indices
Hi Yu, I was able to reproduce the misaligned memory error on my 4090 as well. It appears that the
Feb 23
Lorenzo Spinelli
,
Qianqian Fang
4
Feb 21
Issue using detectors with negative radius
Dear Qianqian, thanks for the fast reply. I understood the problem and applied your suggestion to fix
unread,
Issue using detectors with negative radius
Dear Qianqian, thanks for the fast reply. I understood the problem and applied your suggestion to fix
Feb 21
Qianqian Fang
Feb 19
[MCX Newsletters] MCX Suite v2025 is here, upgrade today!
(You received this message because you are a registered user of MCX (https://mcx.space) - an open-
unread,
[MCX Newsletters] MCX Suite v2025 is here, upgrade today!
(You received this message because you are a registered user of MCX (https://mcx.space) - an open-
Feb 19
Netaniel Rein
, …
Qianqian Fang
4
Feb 19
unsuccessful simulation of hemodynamic changes in slab head model
hi Netaniel, I am a big confused - if you just want to get the total absorbed weight, why need to run
unread,
unsuccessful simulation of hemodynamic changes in slab head model
hi Netaniel, I am a big confused - if you just want to get the total absorbed weight, why need to run
Feb 19
J.H.Park
,
Qianqian Fang
2
Feb 13
how to edit digimouse mat.file
hi Jong-Hyun, sorry for the delay. my understanding is that you want to use a sub-section of the
unread,
how to edit digimouse mat.file
hi Jong-Hyun, sorry for the delay. my understanding is that you want to use a sub-section of the
Feb 13
강민지
,
Qianqian Fang
2
Jan 22
having "invalid mex file" trouble
hi Minjee, I believe the missing dll is vcomp120.dll, it is part of the Microsoft Visual C++
unread,
having "invalid mex file" trouble
hi Minjee, I believe the missing dll is vcomp120.dll, it is part of the Microsoft Visual C++
Jan 22
Vytautas Gradauskas
,
Qianqian Fang
2
Jan 21
Padding to create semi-infinite slab
hi Vytautas, I see your example contains cfg.bc='ccacca', I assume it was derived from either
unread,
Padding to create semi-infinite slab
hi Vytautas, I see your example contains cfg.bc='ccacca', I assume it was derived from either
Jan 21