NEA-0530 FANAC.
FANAC, Resonance Parameter by Multilevel Shape Analysis of Neutron Capture Yield Data
NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES
[ top ]
[ top ]
To submit a request, click below on the link of the version you wish to order.
Only liaison officers are authorised to submit online requests. Rules for requesters are
available here.
| Program name | Package id | Status | Status date |
|---|---|---|---|
| FANAC | NEA-0530/01 | Tested | 01-DEC-1981 |
Machines used:
| Package ID | Orig. computer | Test computer |
|---|---|---|
| NEA-0530/01 | IBM 3033 | IBM 3033 |
[ top ]
[ top ]
4. METHOD OF SOLUTION
Simultaneous least-squares fit to several sets of time-of-flight (TOF) capture data. Reich-Moore cross section formalism for s-wave, single-level Breit-Wigner formalism for p-, d- ... wave resonances. Monte Carlo calculation of second-, third- etc. collision yields. Numerical resolution broadening.
Simultaneous least-squares fit to several sets of time-of-flight (TOF) capture data. Reich-Moore cross section formalism for s-wave, single-level Breit-Wigner formalism for p-, d- ... wave resonances. Monte Carlo calculation of second-, third- etc. collision yields. Numerical resolution broadening.
[ top ]
5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM
The code was written for light- and medium-mass nuclei (or nearly magic nuclei), e.g. structural materials like iron, nickel, ... or lead. Doppler broadening is neglected for s-wave resonances, level-level and resonant-potential interference for p-, d-, ... wave levels. The sample is taken as a cylindrical disc with its axis parallel to the neutron beam. Scattering anisotropy in the c.m.s. frame is neglected. The programme accepts up to 5 TOF data sets (which may differ with respect to sample thickness and radius, energy range, instrumental resolution etc.), 200 cross section parameters (20 of them adjustable) and 512 data points (with uncertainties). Gaussian or chi-squared resolution function.
The code was written for light- and medium-mass nuclei (or nearly magic nuclei), e.g. structural materials like iron, nickel, ... or lead. Doppler broadening is neglected for s-wave resonances, level-level and resonant-potential interference for p-, d-, ... wave levels. The sample is taken as a cylindrical disc with its axis parallel to the neutron beam. Scattering anisotropy in the c.m.s. frame is neglected. The programme accepts up to 5 TOF data sets (which may differ with respect to sample thickness and radius, energy range, instrumental resolution etc.), 200 cross section parameters (20 of them adjustable) and 512 data points (with uncertainties). Gaussian or chi-squared resolution function.
[ top ]
[ top ]
7. UNUSUAL FEATURES OF THE PROGRAM
High speed due to hybrid resonance formalism (see above under 4.). Automatic internal mesh determination. No regular energy or flight-time grid required for input data. Conveniently structured input containing only physics information (no numbers of cards, points, resonances etc.), same resonance cards as for transmission shape analysis code FANAL, KFK 2129. Importance sampling in the Monte Carlo simulation of multiple scattering. Two-channel Reich-Moore formulae for inelastic scattering.
High speed due to hybrid resonance formalism (see above under 4.). Automatic internal mesh determination. No regular energy or flight-time grid required for input data. Conveniently structured input containing only physics information (no numbers of cards, points, resonances etc.), same resonance cards as for transmission shape analysis code FANAL, KFK 2129. Importance sampling in the Monte Carlo simulation of multiple scattering. Two-channel Reich-Moore formulae for inelastic scattering.
[ top ]
[ top ]
[ top ]
[ top ]
[ top ]
[ top ]
[ top ]
NEA-0530/01
| File name | File description | Records |
|---|---|---|
| NEA0530_01.001 | INFORMATION | 30 |
| NEA0530_01.002 | JOB CONTROL | 94 |
| NEA0530_01.003 | ASSEMBLER RANDOM NUMBER GENERATOR ROUTINE | 18 |
| NEA0530_01.004 | FANAC FORTRAN SOURCE | 1740 |
| NEA0530_01.005 | SAMPLE PROBLEM INPUT | 204 |
| NEA0530_01.006 | SAMPLE PROBLEM OUTPUT | 3958 |
Keywords: Breit-Wigner formula, Monte Carlo method, collisions, cross sections, least square fit, multilevel analysis, reich-moore formula, resonance scattering.