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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

GipGui: A Graphical User Interface for the GIP Cross Section Preparation

Code

ANS M&C Gatlinburg, TN April 9, 2003

Douglas E. PeplowNuclear Science and Technology Division

Oak Ridge National Laboratory 

Yousry Y. AzmyDepartment of Mechanical and Nuclear Engineering

Pennsylvania State University

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

GIP - Mixes Group Cross Sections for DOORS

GIP input deck is instructions for combining elemental cross sections using any combination of elements from a given library file or from manually-entered elemental cross sections

each Pl component listed as separate materials Pl components are built by instructions

mixtureN = mixtureN + materialM*density input file: N M density

densities MUST be atom/(b cm) strict formatting, not very readable steep learning curve

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

Example – natural iron and carbon steel

Library 1 7 al27 75 7 c 187 7 fe54195 7 fe56 203 7 fe57 211 7 fe58 333 7 mn55505 7 si 607 5 zr

1$$ 69 3 4 72 63 / # grps; total; self sc; tbl lnth; mxng tbl 6 612 702 0 5 / cards; tape; total mats; frwrd; Pl order 2 2 2 / prnt-; output mixs only; DOT4 format a18 8 21 / output & input library unitset13$$ 610i 1 612 / Set ID numbers for nuclides from library7$$ / translate card material by 612 & all tape materials by -6 4i 613 618 610i 1 612 82i 619 70210$$ / Specify material number for each mixture:

4r-661 / 9. 4 nuclides in natural iron 4r-673 / 10. 4 nuclides in carbon steel

11$$ / Specify material number for nuclides in each mixture:

/ 9. natural iron: Fe54 Fe56 Fe57 Fe58 187 195 203 211/ 10. carbon steel: C Si Mn55 Fe 75 505 333 661

12** / density in atoms per b.cm for each nuclide

/ 9. natural iron: Fe54 Fe56 Fe57 Fe58 5.011-3 7.790-2 1.784-3 2.378-4/ 10. carbon steel: C Si Mn55 Fe 7.883-4 4.214-4 3.878-4 8.401-2

t

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

Need a better way to make GIP input decks

treat materials as materials, handle Pl components behind-the-scenes

easier way to enter data by hand easier way to specify material compositions eliminate the need to learn formatting ability to edit existing input decks (back-

compatibility) perhaps even run GIP without ever seeing the

input deck

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

GipGui

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

GipGui written in Java, machine independent creates new and edits existing input decks manually entered data input into easy-to-read

table user can specify material composition 8 different

ways elemental and nuclear data on main screen extra comments and data embedded into GIP

standard input file

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

Material Specification – H2O (H1, O16) atomic densities

H: 0.0669 atoms/(b cm) O: 0.0334 atoms/(b cm)

atom fractions total: 0.10031 atoms/(b cm) H: 0.6667 O: 0.3333

molecular formula total molecular weight: 18.0105 g/mol total density: 1.000 g/cm^3 H: 2 O: 1

unitless - user supplies multiplier

mass densities H: 0.1119 g/cm^3 O: 0.8881 g/cm^3

mass fractions total: 1.0000 g/cm^3 H: 0.1119 O: 0.8881

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

Requirements and Restrictions

Requirement a library index file describing

what is in the actual library (GipGui can help user create this)

Restrictions "=gip" or "=end" not permitted Stacked cases not allowed Only comment character is “/” Empty lines read as zeros “0” entry in 10$ array not

permitted

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

Future of GipGui

To the GIP community - Help Us Help You

We need feedback from the user community to tell us if this is useful and how to make it better.

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OAK RIDGE NATIONAL LABORATORYU. S. DEPARTMENT OF ENERGY

Warning: GipGui was designed by Engineers