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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Dummy input used to be estepe, max. Surviving photons have their weight increased by n split so that their weight is equal to the weight of the original photon before splitting. As above except these are the regions for which the dose will be printed in. The format follows that of the general purpose EGSnrc user-codes.
It then became the basis for a Monte Carlo timing benchmark which was regularly updated and available on the WWW for many years until Default optimization is level 3 -O3. In general, EGSnrc inputs must appear in the input?
The possible settings of mode are: These fat photons may compromise dose statistics. When using this phase space?
Send them to us and we will integrate them into the standard distribution with full acknowledgement of the source. If any or all of the EGSnrc input parameters is missing, then the default setting will be used.
To be able to ignore these fat photons and thereby increase the e? In addition to the above inputs, the user must input uesr following information, all on one line, separated by commas.
Note that the number of histories to run and the total CPU time allowed for the simulation do not include the histories and CPU time from the previous run.
It determines the number of times that each particle from a phase space source is recycled ie, reused each time it is read. Currently, the following options are available case does not matter and the internal variables are shown in [ ] brackets: The partition of the phase space source that will be used for this one of the series of parallel input files for the same total simulation is given by: In a polar coordinate system, this angle is known as the polar angle and normally has a range degrees.
Note, this option disabled, but must enter blank record for compatibility. The incident angles theta and phi are de? This will open up a window in which you can either run DOSXYZnrc interactively or else submit to a queue or start a parallel run. This will generate a binary.
A graphical user interface for calculation of 3D dose distribution using Monte Carlo simulations
The user then mmanual The centre of the phase-space is 80 cm from the isocenter and the collimator angle is 90 degrees. This is only used in conjunction with photon splitting n split, see Section 8.
However, for phase space sources, where more than one incident particle may be traced back to a single primary history, quantities are grouped by primary history. Blake Walters separated out the ctcreate code uaer summer to make the DOSXYZ code much smaller and thus able to handle much larger array sizes. NRCYCL is not automatically calculated if you are only using the positrons ueer the phase space source or if you are selecting a sub-set of the phase space source based on LATCH settings.
These are the names of the BEAM accelerator code being used as a source, the input?
This data must be included in the PEGS4 material data set. In the case of a simple photon beam source e.
Since, in CT phantom cases, the user is usually not interested in this output and, owing to the large number of voxels in a CT phantom, it can make the. If this still results in many restarts because of many particles missing the geometry or beyond beam fieldthen re-run the simulation with NRCYCL set manually to: The companion program ctcreate is capable of reading in a CT data set of Houns?
We recommend setting NRCYCL to a usfr that will ensure that the entire phase space source gets sampled ie the simulation uses almost all the particles in the source but prevents the source from being restarted.
Jobs run until there are no histories remaining in the job control? Note that dosxyznrc user macros is also used by ctcreate to de?
The default setting of medsur is 0, indicating the surrounding region is vacuum. More details about this are given below. Input parameters for source 4 are the same as for source 2: The yser of the exb command is: For the other selections, the theory associated with the name given is used. The dimensions of the rectangular collimator are given by xcol and ycol. If these charged particles undergo radiative events bremsstrahlung, annihilation, annihilation at restRussian roulette is played on the resultant photons with a survival 1 probability of n split.
Boundary crossing algorithm bca algorithm. In this case, SMAX will default to 1e There are also dossyznrc types of phase-space? There are two possible settings of Uswr crossing algorithm: For the purposes of dose deposition, the total curved charged particle step is approximated by two straight-line steps joined at a hinge point.