PSR-0298 TNG1.

TNG1, Multistep Statistical Model Hauser-Feshbach

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROGRAM OR FUNCTION, 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 UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

[ top ]

1. NAME OR DESIGNATION OF PROGRAM: TNG1.

[ top ]

2. COMPUTERS

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
TNG1	PSR-0298/01	Tested	19-AUG-1991

Machines used:

Package ID	Orig. computer	Test computer
PSR-0298/01	DEC VAX 6000	Many Computers

[ top ]

3. DESCRIPTION OF PROGRAM OR FUNCTION

The TNG1 code is a multi-step statistical model based on the Hauser-Feshbach theory including width-fluctuation corrections and pre-compound effects. Statistical model calculations are frequently performed for medium and heavy nuclei.

[ top ]

4. METHOD OF SOLUTION

The Hauser-Feshbach part of the TNG1 code is multi-step, but angular distribution can be calculated only for the binary step. The pre-compound portion is single step, in this case angular distribution is calculated on the basis of partial wave interference (partial relaxation of the random phase approximation in the H-F formalism). Quantities calculated include: elastic, total, inelastic, (n,g), (n,n'), (n,p), (n,a), (n,f), (n,2n), (n,np), (n,na), (n,nf),..., (n,4n),......, secondary particle and gamma ray production spectra, angular distributions of the first outgoing particles, and the production cross sections of isomeric states.

[ top ]

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

(n,gx) has not been included. Dimensions of the transmission coefficients are such that cross sections can be calculated up to 40 MeV for Ca-40 and 20 MeV for Pu-242. The maximum number of discrete levels is 40, the number of continuum bins is limited to 40 for each residual nuclide, and the number of outgoing particles is limited to 3.

[ top ]

6. TYPICAL RUNNING TIME

On the VAX 6000, sample problem 1 took about two minutes of CPU time (wall clock time).

PSR-0298/01

NEADB compiled and executed the four test cases included in this package on a DEC VAX 8810 and an IBM 3090 computer. CPU times varied on VAX between 2 seconds (case 2) and 3 minutes (case 4); and on IBM between 0.64 seconds and 56.89 seconds on IBM.

[ top ]

7. UNUSUAL FEATURES OF THE PROGRAM:

[ top ]

8. RELATED AND AUXILIARY PROGRAMS:

[ top ]

9. STATUS

Package ID	Status date	Status
PSR-0298/01	19-AUG-1991	Tested at NEADB

[ top ]

10. REFERENCES:

PSR-0298/01, included references:

- K. Shibata and C.Y. Fu:
  Recent Improvements of the TNG Statistical Model Code
  ORNL/TM-10093 (August 1986).
- C.Y. Fu:
  Development of a Two-Step Hauser-Feshbach Code with Precompound
  Decays and Gamma-Ray Cascades - A theoretical Tool for Cross
  Section Evaluations
- C.Y. Fu:
  Consistent Calculations of (n,x) and (n,x gamma) Cross Sections
  for 40CA* En=1-20 MeV
  Atomic Data and Nuclear Data Tables 17, 127-156 (1976).

[ top ]

11. MACHINE REQUIREMENTS: TNG1 runs on the VAX family of computers.

PSR-0298/01

Main storage requirement is 500K bytes.

[ top ]

12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
PSR-0298/01	FORTRAN-77

[ top ]

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

A FORTRAN 77 compiler is required. The code was compiled with VAX/FORTRAN on the VAX 6000 under the VAX/VMS operating system.

PSR-0298/01

VMS V5.3 (VAX 8810); MVS/XA (IBM 3090).

[ top ]

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

[ top ]

15. NAME AND ESTABLISHMENT OF AUTHOR

Contributed by: Radiation Safety Information Computational Center
                Oak Ridge National Laboratory
                Oak Ridge, Tennessee, U. S. A.
Developed by:   Oak Ridge National Laboratory
                Oak Ridge, Tennessee, U. S. A.

[ top ]

16. MATERIAL AVAILABLE

PSR-0298/01

File name	File description	Records
PSR0298_01.001	Information file	175
PSR0298_01.002	TNG1 source program	6748
PSR0298_01.003	VAX command file	14
PSR0298_01.004	IBM JCL file	108
PSR0298_01.005	Input description	551
PSR0298_01.006	Sample input 1 for unit 60	49
PSR0298_01.007	Sample input 1 for unit 63	105
PSR0298_01.008	Sample input 2 for unit 60	18
PSR0298_01.009	Sample input 2 for unit 63	16
PSR0298_01.010	Sample input 3 for unit 60	27
PSR0298_01.011	Sample input 3 for unit 63	117
PSR0298_01.012	Sample input 4 for unit 60	22
PSR0298_01.013	Sample input 4 for unit 63	77
PSR0298_01.014	Sample output 1 on unit 58 (VAX)	5
PSR0298_01.015	Sample output 1 on unit 61 (VAX)	601
PSR0298_01.016	Sample output 1 on unit 62 (VAX)	221
PSR0298_01.017	Sample output 2 on unit 61 (VAX)	103
PSR0298_01.018	Sample output 2 on unit 62 (VAX)	15
PSR0298_01.019	Sample output 3 on unit 58 (VAX)	5
PSR0298_01.020	Sample output 3 on unit 61 (VAX)	604
PSR0298_01.021	Sample output 3 on unit 62 (VAX)	229
PSR0298_01.022	Sample output 4 on unit 58 (VAX)	14
PSR0298_01.023	Sample output 4 on unit 61 (VAX)	550
PSR0298_01.024	Sample output 4 on unit 62 (VAX)	99
PSR0298_01.025	Sample output 1 on unit 58 (IBM)	5
PSR0298_01.026	Sample output 1 on unit 61 (IBM)	602
PSR0298_01.027	Sample output 1 on unit 62 (IBM)	221
PSR0298_01.028	Sample output 2 on unit 61 (IBM)	103
PSR0298_01.029	Sample output 2 on unit 62 (IBM)	15
PSR0298_01.030	Sample output 3 on unit 58 (IBM)	5
PSR0298_01.031	Sample output 3 on unit 61 (IBM)	601
PSR0298_01.032	Sample output 3 on unit 62 (IBM)	229
PSR0298_01.033	Sample output 4 on unit 58 (IBM)	14
PSR0298_01.034	Sample output 4 on unit 61 (IBM)	550
PSR0298_01.035	Sample output 4 on unit 62 (IBM)	99

[ top ]

17. CATEGORIES

A. Cross Section and Resonance Integral Calculations

Keywords: Hauser-Feshbach theory, angular distribution, distorted wave born approximation, neutron cross sections, neutron reactions, nuclear models, optical models, precompound-nucleus emission, statistical models.