IDEAS home Printed from https://ideas.repec.org/a/eee/matcom/v47y1998i2p271-285.html
   My bibliography  Save this article

Criticality calculations with MCNP4A using correlated sampling methods

Author

Listed:
  • Gallmeier, Franz
  • Gaubatz, Werner

Abstract

Two methods of calculating reactivity effects due to small changes in reactor configurations have been implemented in MCNP4A. The pseudo-correlated sampling method makes use of the correlation of particle tracks in problems with well localized perturbations. The true correlated sampling method forces a perturbed particle on the track of a reference particle and adjusts its weight for compensation. It works well for problems of small changes in the composition or density of materials and is not restricted to a localized region of the reactor arrangement. Both methods are using the fission matrix approach for calculating the eigenvalue of the multiplying system rather than the source iteration method. These methods of correlated sampling have been applied to problems in the FRM-II research reactor design, to study small reactivity changes due to installations in the moderator pool and to verify reactivity coefficients due to density changes of the cooling water and the heavy water moderator.

Suggested Citation

  • Gallmeier, Franz & Gaubatz, Werner, 1998. "Criticality calculations with MCNP4A using correlated sampling methods," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 47(2), pages 271-285.
    • Handle: RePEc:eee:matcom:v:47:y:1998:i:2:p:271-285
    DOI: 10.1016/S0378-4754(98)00104-9
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378475498001049
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/S0378-4754(98)00104-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Keywords

    Monte Carlo methods; MCNP4A; Reactivity effects;
    All these keywords.

    JEL classification:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:matcom:v:47:y:1998:i:2:p:271-285. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/mathematics-and-computers-in-simulation/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.