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  • Main Page
    ...om the [https://serpent.vtt.fi/serpent/download/Serpent_manual.pdf Serpent 1 Manual] and the [//ttuki.vtt.fi/serpent discussion forum]
    3 KB (373 words) - 13:49, 10 April 2024
  • Validation and verification
    | FCA-XIX-1 | Reactor dosimetry calculations for FiR 1 Triga Mk-II reactor
    26 KB (3,632 words) - 23:14, 23 May 2022
  • Input syntax manual
    ...the end of the line is omitted when the input file is read. Unlike Serpent 1, hashtag ('#') can no longer be used to mark comment lines in Serpent 2 inp ...ore detailed descriptions where needed. For reference see also the Serpent 1 input manual<ref name="manual">Leppänen, J.
    327 KB (50,517 words) - 14:05, 8 May 2024
  • HEU-MET-FAST-001
    cell 1 0 m1 -1 cell 2 0 outside 1
    350 B (43 words) - 14:32, 29 November 2017
  • PU-MET-FAST-001
    cell 1 0 m1 -1 cell 2 0 outside 1
    372 B (37 words) - 14:32, 29 November 2017
  • PU-MET-FAST-006
    cell 1 0 m1 -1 cell 2 0 m2 1 -2
    495 B (50 words) - 14:32, 29 November 2017
  • U233-MET-FAST-001
    cell 1 0 m1 -1 cell 2 0 outside 1
    375 B (38 words) - 14:32, 29 November 2017
  • U233-MET-FAST-006
    cell 1 0 m1 -1 cell 2 0 m2 1 -2
    491 B (47 words) - 14:32, 29 November 2017
  • Delta- and surface-tracking
    ...on transport problems."'' Nucl. Sci. Eng., [https://doi.org/10.13182/NSE68-1 '''31''' (1968) 76–81].</ref> Delta-tracking is well described in a text l = -\frac{1}{\Sigma}\log\xi
    10 KB (1,576 words) - 13:31, 26 May 2023
  • Pitfalls and troubleshooting
    ...ethodology for probability table sampling is not complete (as of version 2.1.25), and some nuclides contain data that cannot be processed by Serpent. In ...e is still a relatively new feature in Serpent 2 (implemented in version 2.1.29). Based on some preliminary test calculations it seems that the producti
    21 KB (3,272 words) - 19:07, 19 August 2022
  • Defining material volumes
    ...oundaries of a universe at another geometry level. Imagine, for example, a 1/4 model of a PWR fuel assembly: Material FUE2 : 1.3905E+01 1.3368E+01 (0.001) : -0.039
    6 KB (970 words) - 13:24, 25 December 2021
  • Automated depletion zone division
    ...[[Input syntax manual#mat (material definition)|material card]] ("Serpent 1" type division). This option should no longer be used. For description, see Sec. 8.2 in Serpent 1 input manual.<ref name="manual">Leppänen, J.
    8 KB (1,224 words) - 16:29, 2 October 2022
  • Memory usage
    where <mode> is the optimization mode 1 - 4. You can find some background information on this topic in my presentat ...ion zones. The methodology is essentially the same as that used in Serpent 1.
    4 KB (555 words) - 04:35, 6 March 2020
  • Description of output files
    The data is divided into two sections: nuclear data (Tables 1-4) and material data (Table 5), as follows: *Table 1: Summary of nuclide data
    11 KB (1,793 words) - 09:25, 12 March 2024
  • ENDF reaction MT's and macroscopic reaction numbers
    | 1 ...eutron leaving the residual nucleus in the ''i''-th excited state (''i'' = 1, 2,...,40)
    16 KB (2,412 words) - 18:09, 23 May 2023
  • Multi-physics interface
    | 1 | For coupling with fuel performance/behavior codes with 1.5 dimensional (z,r) coordinate system.
    44 KB (7,230 words) - 10:53, 9 August 2022
  • FINIX fuel behavior module
    ...}^{n-1} - \frac{s_{n}}{\sum_{i = 1}^{n} s_{n}} d \left(P_{\mathrm{rel}}^{n-1} - P^{n}\right),</math> ...istribution tallied on iteration <math>n</math>, <math>P_{\mathrm{rel}}^{n-1}</math> is the relaxed power distribution after the previous iteration, <ma
    14 KB (2,272 words) - 15:58, 29 November 2017
  • M&C 2013 example inputs
    1 1 0.04015889 -1 imp:n=1 tmp=2.585E-08 2 2 0.048069744 1 -2 imp:n=1 tmp=2.585E-08
    20 KB (1,676 words) - 15:41, 26 May 2022
  • Collection of example input files
    | [[2D PWR assembly burnup example (Serpent 1 style division)|Serpent input file]] | 17x17 assembly with burnable absorber, "Serpent 1" style division into depletion zones
    7 KB (972 words) - 16:46, 11 February 2024
  • 2D BWR fuel assembly geometry
    pin 1 % --- Lattice (type = 1, pin pitch = 1.45):
    5 KB (595 words) - 14:35, 11 February 2024
  • 2D CANDU fuel bundle geometry
    pin 1 1 0.0000 0.0 1
    2 KB (262 words) - 19:10, 30 January 2019
  • 2D PWR MOX/UOX lattice geometry
    94238.09c 1.7000E-06 94239.09c 1.2000E-04
    5 KB (363 words) - 14:26, 29 November 2017
  • Coupled multi-physics calculations
    *Neutron transport solution (STEP 1, ITER 1) **External solution (STEP 1, ITER 1)
    8 KB (1,148 words) - 15:12, 9 May 2022
  • 2D PWR pin-cell burnup example
    pin 1 surf 1 sqc 0.0 0.0 0.665
    2 KB (182 words) - 14:27, 29 November 2017
  • 2D PWR assembly burnup example (Serpent 1 style division)
    lat 110 1 0.0 0.0 17 17 1.265 mat UO2 6.7402E-02 burn 1
    5 KB (345 words) - 14:27, 29 November 2017
  • 2D PWR assembly burnup example (division with div-card)
    pin 1 lat 110 1 5.06 5.06 9 9 1.265
    4 KB (314 words) - 14:27, 29 November 2017
  • FINIX PB2 example input
    ...: Specification and Support Data for Neutronics Cases (Phase I), Version 2.1''", NEA/NSC/DOC(2013)7</ref> with the segmented absorber rod replaced by a set bc 2 2 1
    10 KB (1,195 words) - 14:28, 29 November 2017
  • Automated burnup sequence
    5010.06c 1.51847E-04 5011.06c 1.22239E-03
    27 KB (3,939 words) - 14:41, 5 June 2022
  • Automated burnup sequence example 1
    lat LAT1 1 5.0394 5.0394 9 9 1.25984 div fuel sep 1
    15 KB (1,777 words) - 23:17, 4 June 2022
  • Surface types
    | ''x<sub>1</sub>, y<sub>1</sub>, z<sub>1</sub>, x<sub>2</sub>, y<sub>2</sub>, z<sub>2</sub>, x<sub>3</sub>, y<sub>3< | <math>S(x,y,z) = (1-u_0^2)(x - x_0)^2 + (1-v_0^2)(y - y_0)^2 + (1-w_0^2)(z - z_0)-r^2</math>
    18 KB (3,130 words) - 21:56, 25 May 2023
  • Doppler-broadening preprocessor routine
    ...-broadening preprocessor routine was implemented in Serpent 2 (and Serpent 1). The routine is able to increase the temperature of a free-atom cross sect '''mat''' ''NAME'' ''DENS'' ''T'' [ ''NUC<sub>1</sub>'' ''FRAC<sub>1</sub>'' ''NUC<sub>2</sub>'' ''FRAC<sub>2</sub>'' ... ]
    6 KB (997 words) - 21:03, 28 December 2021
  • Output parameters
    | 1 | 1
    73 KB (10,265 words) - 12:35, 11 April 2024
  • Definitions, units and constants
    | 1/cm | ( = b<sup>-1</sup>cm<sup>-1</sup>)
    2 KB (276 words) - 21:26, 16 December 2020
  • Godiva inputs
    surf 1 sph 0 0 0 8.7407 cell 1 0 uranium -1
    2 KB (192 words) - 13:12, 7 May 2021
  • Boundary conditions
    Image:vacu2D.png|'''Vacuum boundary conditions''' ("set&nbsp;bc&nbsp;1", xy-plot). See [[media:vacu2D.gif|animated particle tracks]].
    6 KB (867 words) - 15:38, 29 November 2017
  • Unstructured mesh-based geometry type
    ...structured mesh based geometry can be created by using the <tt>'''solid''' 1</tt> or <tt>'''solid''' 3</tt> input card. ==== Geometry only (<tt>'''solid''' 1</tt>) ====
    9 KB (1,333 words) - 15:41, 29 November 2017
  • ADF symmetry options
    *Symmetry options of sign moments were added in version 2.1.32. *Symmetry option 6 were added in version 2.1.32.
    3 KB (435 words) - 15:17, 13 June 2023
  • Installing and running Serpent
    installed. The updates are cumulative in the sense that update "sssup2.2.X+1.tar.gz" contains all the modifications in update "sssup2.2.X.tar.gz" and ea #SBATCH -t 1-00:00:00
    35 KB (4,854 words) - 12:38, 11 April 2024
  • Universe symmetries
    ...some level of symmetry. Consider, for example, a BWR fuel assembly with a 1/2 symmetry. The loading pattern can be defined in the input as: ...e material volumes that Serpent calculates automatically correspond to the 1/2 lattice model in the second figure. In order to get the volumes right, th
    4 KB (623 words) - 18:11, 25 June 2021
  • Monte Carlo performance benchmark
    % Based on revision 1.2 (July 2011) of Monte Carlo performance benchmark: set pop 500000 1000 200 1.0 1
    7 KB (655 words) - 15:40, 29 November 2017
  • Universe-based geometry type in Serpent
    {\boldsymbol{\hat{\Omega}}}\cdot{\boldsymbol{\hat{\Omega}}} = 1 u^2 + v^2 + w^2 = 1
    11 KB (1,754 words) - 17:01, 9 May 2022
  • Transient simulations
    ...le neutron or precursor to the source respectively. The default values are 1.0 for each. <tt>''PN''</tt> has to be adjusted a smaller value in many sim P larger than 1 (1.630892E+00)
    20 KB (3,203 words) - 17:44, 22 May 2023
  • Simple umsh 8 cubes input
    set bc 1 % --- Material for cube at (+,-,+) corner (umsh cell 1)
    20 KB (2,351 words) - 12:45, 5 May 2021
  • Unstructured mesh based input
    (''X<sub>1</sub>'' ''Y<sub>1</sub>'' ''Z<sub>1</sub>'') (''X<sub>NP-1</sub>'' ''Y<sub>NP-1</sub>'' ''Z<sub>NP-1</sub>'')
    6 KB (1,112 words) - 15:54, 29 November 2017
  • Infinite homogeneous LWR-like reactor transient example
    set power 1.0 set pop 80000 80000 200 1.0 100
    4 KB (619 words) - 15:20, 26 December 2021
  • 3D BWR assembly transient example
    set bc 2 2 1 set pop 80000 1000000 200 1.0 100
    9 KB (955 words) - 15:27, 26 December 2021
  • Minimal Serpent Coupling Script
    <b>NB: Serpent versions up to 2.1.26 have a small bug in the updating of the regular mesh based interface, wh sssexe = '/home/vvvillehe/Serpent2/2.1.31/sss2'
    10 KB (1,270 words) - 16:18, 16 December 2022
  • List of pre-defined material compositions
    ...Pacific Northwest National Laboratory, PIET-43741-TM-963, PNNL-15870 Rev. 1. March 4, [https://www.pnnl.gov/main/publications/external/technical_report | 1
    11 KB (1,274 words) - 11:59, 11 October 2023
  • Conversion script for homogenized cross sections
    ...sequence using the MIT BEAVRS benchmark – HFP conditions and fuel cycle 1 simulations."'' Ann. Nucl. Energy, [http://www.sciencedirect.com/science/ar ''COE<sub>1</sub>''
    8 KB (1,223 words) - 15:48, 12 May 2022
  • UGM 2016 Moving geometry
    | <tt>transa s s2 tlim 0.1 0.5 1 0 0 1000.0 transa s s2 tlim 0.5 0.9 1 0 0 -1000.0</tt>
    2 KB (235 words) - 11:54, 27 January 2020
  • Default isomeric branching ratios
    ...values are calculated from energy-dependent branching ratios in the JEFF-3.1 activation file in PWR flux spectrum. The last two columns refer to ground- mat Am241 1.0 95241.09c 1.0
    6 KB (512 words) - 23:12, 20 October 2022
  • UGM 2016 PB2 steadystate
    set bc 2 2 1 set gcu -1
    20 KB (2,316 words) - 15:51, 29 November 2017
  • Visualizing the results
    | 1 | 1
    6 KB (899 words) - 22:17, 1 July 2018
  • MSCS for coupled transients
    sssexe = '/home/vvvillehe/Serpent2/2.1.31/sss2' file_out.write('2 cool 1\n')
    13 KB (1,563 words) - 16:51, 19 May 2023
  • Regular Hex Mesh fuel IFC example
    O-17.03c 1.7482e-05 O-17.03c 1.1711e-07
    5 KB (769 words) - 15:58, 5 June 2022
  • FINIX PB2 CE example input
    ...: Specification and Support Data for Neutronics Cases (Phase I), Version 2.1''", NEA/NSC/DOC(2013)7</ref> with the segmented absorber rod replaced by a set bc 2 2 1
    13 KB (1,551 words) - 14:29, 29 November 2017
  • FINIX PB2 SIE example input
    ...: Specification and Support Data for Neutronics Cases (Phase I), Version 2.1''", NEA/NSC/DOC(2013)7</ref> with the segmented absorber rod replaced by a set bc 2 2 1
    13 KB (1,580 words) - 14:28, 29 November 2017
  • MSCS for burnup calculations
    sssexe = '/home/vvvillehe/Serpent2/2.1.31/sss2' file_out.write('2 cool 1\n')
    29 KB (3,187 words) - 22:47, 19 August 2022
  • Critical density iteration
    Critical density iteration was first implemented in Serpent 2.1.29. ...b>'' ... ''ZAI<sub>N<sub>ZAI</sub></sub>'' [ ''N<sub>MAT</sub>'' ''MAT<sub>1</sub>'' ''MAT<sub>2</sub>'' ... ''MAX<sub>N<sub>MAT</sub></sub>'' ]
    6 KB (947 words) - 21:08, 6 June 2023
  • Branching ratio example
    pin 1 surf 1 sqc 0.0 0.0 0.665
    10 KB (1,610 words) - 15:36, 29 November 2017
  • Radioactive decay source, practical example
    The radioactive decay source mode was implemented in Serpent 2.1.24 for the purpose of radiation transport calculations involving activated The radiation types in version 2.1.28 and earlier are limited to discrete photon emitting reactions. Work on c
    12 KB (1,415 words) - 14:17, 21 August 2022
  • Sensitivity calculations
    ...opagation of Serpent estimates <ref name="UncReport18"/>. From version 2.2.1 and on, it applies not only to criticality calculations but also to externa | 0/1
    23 KB (3,536 words) - 13:38, 26 May 2023
  • Default 2-group structure
    | 1
    144 B (15 words) - 14:19, 29 November 2017
  • Default multi-group structure
    | 1 | 1.3530000000E+00
    2 KB (151 words) - 14:20, 29 November 2017
  • CSEWG 239 group structure
    | 1.9970478199E+01 | 1
    7 KB (491 words) - 14:19, 29 November 2017
  • LANL 30 group structure
    | 1.7000000000E+01 | 1
    1,016 B (71 words) - 14:20, 29 November 2017
  • ANL 27 group structure
    | 1.0000000000E+01 | 1
    926 B (65 words) - 14:19, 29 November 2017
  • RRD 50 group structure
    | 1.9971077322E+01 | 1
    2 KB (111 words) - 14:21, 29 November 2017
  • Laser-thermos 35 group structure
    | 1.8550000000E-06 | 1
    1 KB (81 words) - 14:20, 29 November 2017
  • EPRI-CPM 69 group structure
    | 1.0000000000E+01 | 1
    2 KB (149 words) - 14:20, 29 November 2017
  • LANL 70 group structure
    | 1 | 1.6487200000E+01
    2 KB (151 words) - 14:20, 29 November 2017
  • Eurlib 100-group structure
    | 1.4918246976E+01 | 1
    3 KB (211 words) - 14:20, 29 November 2017
  • Vitamin-e 174-group structure
    | 1.9640000000E+01 | 1
    5 KB (359 words) - 14:22, 29 November 2017
  • Vitamin-j 175-group structure
    | 1.9640000000E+01 | 1
    5 KB (361 words) - 14:22, 29 November 2017
  • XMAS 172-group structure
    | 1.9640300000E+01 | 1
    5 KB (355 words) - 14:23, 29 November 2017
  • ECCO 33-group structure
    | 1.9640330000E+01 | 1
    1 KB (78 words) - 14:21, 29 November 2017
  • ECCO 1968-group structure
    | 1.9640330000E+01 | 1
    58 KB (3,947 words) - 14:20, 29 November 2017
  • Tripoli 315-group structure
    | 1.9640000000E+01 | 1
    9 KB (641 words) - 14:22, 29 November 2017
  • XMAS LWPC 172-group structure
    | 1.9640330000E+01 | 1
    5 KB (355 words) - 14:23, 29 November 2017
  • VIT-J LWPC 175-group structure
    | 1.9640300000E+01 | 1
    5 KB (361 words) - 14:22, 29 November 2017
  • WIMS 69-group structure
    | 1.0000000000E+01 | 1
    2 KB (150 words) - 14:22, 29 November 2017
  • WIMS 172-group structure
    | 1.9640300000E+01 | 1
    5 KB (355 words) - 14:22, 29 November 2017
  • CASMO 70-group structure
    | 1.0000000000E+01 | 1
    2 KB (151 words) - 14:14, 29 November 2017
  • CASMO 40-group structure
    | 1.0000000000E+01 | 1
    1 KB (91 words) - 14:14, 29 November 2017
  • CASMO 25-group structure
    | 1.0000000000E+01 | 1
    866 B (61 words) - 14:14, 29 November 2017
  • CASMO 23-group structure
    | 1.0000000000E+01 | 1
    806 B (57 words) - 14:13, 29 November 2017
  • CASMO 18-group structure
    | 1.0000000000E+01 | 1
    656 B (47 words) - 14:13, 29 November 2017
  • CASMO 16-group structure
    | 1.0000000000E+01 | 1
    596 B (43 words) - 14:13, 29 November 2017
  • CASMO 14-group structure
    | 1.0000000000E+01 | 1
    536 B (39 words) - 14:13, 29 November 2017
  • CASMO 12-group structure
    | 1.0000000000E+01 | 1
    476 B (35 words) - 14:18, 29 November 2017
  • CASMO 9-group structure
    | 1.0000000000E+01 | 1
    395 B (30 words) - 14:18, 29 November 2017
  • CASMO 8-group structure
    | 1.0000000000E+01 | 1
    365 B (28 words) - 14:18, 29 November 2017
  • CASMO 7-group structure
    | 1.0000000000E+01 | 1
    335 B (26 words) - 14:17, 29 November 2017
  • CASMO 4-group structure
    | 1.0000000000E+01 | 1
    245 B (20 words) - 14:17, 29 November 2017
  • CASMO 3-group structure
    | 1.0000000000E+01 | 1
    215 B (18 words) - 14:17, 29 November 2017
  • CASMO 2-group structure
    | 1.0000000000E+01 | 1
    185 B (16 words) - 14:15, 29 November 2017
  • MUPO 43-group structure
    | 1.0000000000E+01 | 1
    1 KB (97 words) - 14:21, 29 November 2017
  • SCALE 44-group structure
    | 1 | 1.8500000000E+00
    1 KB (100 words) - 14:22, 29 November 2017
  • SCALE 238-group structure
    | 1 | 1.7333000000E+01
    7 KB (487 words) - 14:22, 29 November 2017
  • LEU-SOL-THERM-007
    cell 1 1 mat1 1 -2 -10 cell 2 1 mat3 2 -3 -10
    1 KB (113 words) - 14:32, 29 November 2017

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