How is possible to obtain the relation kGauss=4/pi in TEM00?

26 April 2019 0 2K Report

Hi people. I need that someone explain to me, how is possible to obtain the relation kGauss=4/pi in TEM00 laser beam power distribution?

This value is a number that represent some geometric relation in 3D Gaussian energy distribution?

Many thanks.

Badges
Science topic

Similar topics
Journal Impact Factor

More Daniel Martinez Krahmer's questions See All

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

H-index issues?

Hi Sir/Madam, I would like to know why my h-index is stuck to 15 despite the number of new publications added. Could you explain me how marks are granted. Best, Daniel

28 July 2024 2,607 2 View

I'm looking for a tool to evaluate the risk of bias in... Are there any recommended applications or platforms?

Dear researchers, In a systematic review (not a meta-analysis) compiling studies on various diagnostic systems against a specific pathogen. The most relevant parameters evaluated are the type of...

03 July 2024 9,069 3 View

What is the current usage and patronage of parks and greenspaces by older adults (aged 65+) in Salford? How does the frequency of older adults' visit?

What is the current usage and patronage of parks and greenspaces by older adults (aged 65+) in Salford? How does the frequency of older adults' visits to parks and greenspaces in Salford relate to...

22 June 2024 7,616 1 View

How can we compare SENTINEL vs LANDSAT for NDVI?

A question to see who can answer it. If the red and infrared bands of the satellites are...

16 June 2024 2,249 1 View

ImageJ Concentric Circles?

Hi there! We are trying to use the Concentric Circles Plugin on ImageJ to determine signal intensity in neurosphere cryosections after immunocytochemistry/confocal analysis. We determined the...

12 June 2024 7,332 0 View

How do i use researchgate to cunduct literature review ?

I am a first-time researcher in the field of nursing and i would like to conduct research about knowledge and attitude towards prevention and spread of tuberculosis.

11 June 2024 3,821 2 View

Is there any possibility for cultured mouse neurons more than 7 days?

Dear colleagues, I'm planning to start neuron mouse co-culture with astrocyte and microglia but I heard that it's difficult to keep it up. Any advices?

27 May 2024 4,905 3 View

What are some possible technical failures during lentiviral packaging using HEK293T?

I'm having trouble packaging lentivirus in HEK293T using pCMV, pMDG, an shRNA and polyfect. I normally seed 1.5 x 106 HEK293T cells in 60 mm on Day 0, which translates to about 60 to 70%...

20 May 2024 9,067 1 View

What is the minimum amount of liquid and beads I can use for bead-beating in a 2ml vial?

I am planning to extract DNA with QIAamp Mini DNA extraction kit (Qiagen) from DNA Shield microbiome preserved samples. My samples contain small amount of cell, so my goal is to reduce the loss of...

14 May 2024 2,291 2 View

What is the difference between mathematical R^4 space and physical 4D unit space?

We assume that the difference is huge and that it is not possible to compare the two spaces. The R^4 mathematical space considers time as an external controller and the space itself is immobile in...

10 August 2024 6,678 14 View

Can you suggest reliable sources defining "3D mesh" and "3D city models"?

Dear fellow researchers, I am currently working on a paper where I need to provide a reliable reference that defines and distinguishes between 3D mesh models and 3D city models. Although I am...

06 August 2024 9,986 2 View

What condition of Kirat Rai's participation in politics before and now in Nepal?

The political participation of the Kirat Rai community in Nepal has evolved significantly over time: Historical Context Historically, the Kirat Rai people, like many indigenous groups in Nepal,...

05 August 2024 5,950 1 View

What are the shear and normal stiffness values of an LLDPE liner in 3D numerical modeling of a stockpile?

I am seeking experimental or applicable data for the liner (LLDPE) interface in FLAC3D numerical modeling of a large stockpile. Could you please recommend suitable references? The preferred data...

05 August 2024 3,665 0 View

My frequency output shows no errors, however, there's no frequency as a result on gausview. Does anyone know what I'm doing wrong?

I'm trying to perform a frequency calculation using Gaussian via MOBAXterm. The output shows no errors, however, there's no frequency as a result on gausview. The option "vibrations" is not...

31 July 2024 631 4 View

CAD File of human's & rat's respiratory airways ?

Dear all, I am working on particle deposition in human's & rat's respiratory airways using CFD and I am looking for the 3D CAD file for my simulations (STEP or IGES format). If somone has such...

29 July 2024 1,092 2 View

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program?

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program? for example: Excited State 17: Singlet-A 5.1359 eV 241.41 nm...

28 July 2024 9,165 2 View

What does the difference \lambda_j - \lambda_{j+1} represent in relation to the conjugate partition of \lambda?

For a partition of an integer \lambda, what does the difference \lambda_j - \lambda_{j+1} represent in relation to the conjugate partition, , with \lambda_j being the j-th element of \lambda?

23 July 2024 8,008 1 View

Cell optimization in 1D Nanotubes?

Dear All, I use Quantum Espresso. I want to optimize the structure of the carbon nanotube using the vc-relax. I got confused about how to fix cell_dofree here. For 3D, cell_dofree = 'all' or...

22 July 2024 5,708 0 View

Is is possible to calculate the activation energy of Redox Reactions Using Gaussian?

Hi everyone, I'm working on calculating the activation energies for some redox reactions using Gaussian, Here are the reactions I'm interesting: Py•−+ 3O2 → Py + 3O2•− Py•− + 1O2 → Py + 1O2•− Is...

18 July 2024 4,418 3 View