DOSXYZnrc Users Manual. BEAM Code System General Licence. The BEAM code system (i.e. all pieces of code saying they are subject to the BEAM. General . Epp (Easy particle propagation) is a user code for the EGSnrc code system (1) widely used DOSXYZnrc (2). DOSXYZnrc Users Manual. DOSXYZnrc用户手册_IT/计算机_专业资料。DOSXYZnrc Users Manual B. Walters, I. Kawrakow and D.W.O. Rogers Ionizing Radiation.

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Since, in CT phantom cases, the user is usually not interested in this output and, owing to the large number of voxels mabual a CT phantom, it can make the. Set to 0 otherwise. Similar to parallel BEAMnrc runs, if you are using a phase space?

All values of x will appear in the GUI menu where Compton cross section data can be selected. Note that these settings of n split are higher than those calculated using the rule of thumb given in the paragraph above.

Repeated accessing of a phase space mnaual on a remote disk can slow a simulation down considerably.


The isocenter is normally inside the phantom. The exact value of the global PCUT is not critical in the sense that low values do not take much more time.


Phase space data in IAEA format comprises both a header extension. The positive sense of rotation is counterclockwise as one sights down the beam direction. It then became the basis for a Monte Carlo timing benchmark[7] which was regularly updated and available on the WWW for many years until This is used in conjunction with photon splitting input variable n split, see Section 8. Simulation of binding e? This is known not to be exactly correct, and when charged particle equilibrium does not hold or when there is a large difference in size between majual voxels and voxels mznual up the rest of the phantom, can result in an overestimate of dose by up to 2.

NRC shall not be liable in any event for any damages, whether direct or indirect, special or general, consequential or incidental, arising from the use of the software. There are three possible settings of this input: For BEAMnrc simulation sources, splitting numbers of 40 0. For high-Z materials it is the reverse and backscatter also increases.

You can also use your own customized photon cross-section data.

There are 2 possible settings: Phase-Space Source Incident from Multiple Directions This source is similar to source 2, except that it is incident from multiple, user-de? The possible settings are: An example may help illustrate this input.

A value of 0. The source can be rotated in its own plane using the variable phicol.


Otherwise, these macros are de? A skin depth of 3 elastic mean free paths has been found to give peak e? Only of interest at low energies, where the NRC crosssections take into account the assymmetry in the positron-electron energy distribution.

Note that since only one bit?

A graphical user interface for calculation of 3D dose distribution using Monte Carlo simulations

Input parameters for a phase-space source are: The lower energy limit for relaxation processes is 1 keV. Selection of ECUT is complex in general and is very dependent on what is being calculated[25, 6]. Any of the available beams can be incident on this CT phantom. There is also a graphical user interface GUI which allows input?

For large phantoms, writing this? If this input is set to Off the defaultthen the Klein-Nishina formula[35] is used to determine crosssections for Compton scattering. Batch runs will use the PBS queueing system unless otherwise speci? A good rule of thumb for the setting of n split is: The active volume must be completely contained within the phantom.