DLC-0129 ZZ-ANS643.

1. NAME OR DESIGNATION OF PROGRAM:  ZZ-ANS643.

3. DESCRIPTION OF PROGRAM OR FUNCTION


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  FORMAT: to be used in point kernel codes such as QAD-CGGP.

  NUMBER OF GROUPS: -- (energy range 15 keV to 15 MeV)

NUCLIDES: Be, B, C, N, O, Na, Mg, Al, Si, P, S, Ar, K, Ca, Fe, Cu,  Mo, Sn, La, Gd, W, Pb, U and 3 mixtures (water, air and concrete).

ORIGIN: American Nuclear Society Standards Working Group ANS-6.4.3  
  WEIGHTING SPECTRUM: --

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The GP coefficients as used in the Daniel code will reproduce the buildup factor data of ANS-6.4.3 typically within a few percent. The energy range is 15 keV to 15 MeV. Air and medium response data are provided for 23 elements and 3 mixtures (water, air and concrete). The basic compilation extends to 40 mean free paths, but  the GP method is capable of interpolation in energy and extrapolation in thickness.
Two significant changes were made in the 1990 update: the G-P coefficients were revised from new PALLAS buildup factor calculations of the elements molybdenum and above in the table giving data for all elements, and a table of Taylor coefficients was added. In addition, G-P coefficient files were added for the high-Z  elements which give detail near the absorption edges. Factors to correct for neglect of coherent scattering and for the change in spectra at the shield-tissue interface are included.
Buildup factor tables were added in 1991, and some corrections were made to the Taylor coefficient files.

4. METHOD OF SOLUTION:

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:

6. TYPICAL RUNNING TIME

The sample case executes in less than a
second on the IBM 3033.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS

ANS643 is based on the 1988 buildup factor compilation of American Nuclear Society Standards Working Group ANS-6.4.3. The compilation is based on published and unpublished data from moments method and other sources. The buildup factor coefficients were determined in Japan from the compilation of ANS-6.4.3 and used in CCC-493/QAD-CGGP.
A FORTRAN 77 code called Daniel will provide buildup factors from the coefficients. It consists of QAD-CGGP subroutines which process  GP data and a main routine which together provide an example for incorporation of the GP technique into other applications.

10. REFERENCES

- Y. Harima, Y. Sakamoto, S. Tanaka, and M. Kwai,
"Validity of the Geometrical Progession Formula in Approximating
Gamma-Ray Buildup Factors"
Nucl. Sci. Eng. 94, 24-35 (1986).
- D K. Trubey, "New Buildup Factor Data for Point Kernel
Calculations: ANS-6.4.3 Standard Reference Data"
ORNL/RSIC-49, Oak Ridge National Laboratory (Sept. 1988).
- Proposed American National Standard,
"Gamma-Ray Attenuation Coefficients and Buildup Factors for
Engineering Materials"
ANSI/ANS-6.4.3 (August 1990).
- K. Shure and O.J. Wallace
"Taylor Parameters for Gamma-Ray Buildup Factors in the Proposed
American National Standard"
WAPD-1628, Bettis Atomic Power Laboratory (Oct. 1988).
- Y. Sakamoto and S. Tanaka,
"QAD-CGGP2 and G33-GP: Revised Versions of QAD-CGGP and G33-GP
Codes with Conversion Factors from Exposure to Ambient and Maximum   Dose  Equivalents"
JAERI-M 90-110, Japan Atomic Research Institute (June 1990).

- D.K. Trubey:
  ANS643 and Daniel Notes
  RSIC Informal Notes (October 1988, Rev. July 1990).
- D.K. Trubey and Y. Harima:
  New Buildup Factor Data for Point Kernel Calculations.
  Proceedings of Theory and Practices in Radiation Protection and
  Shielding, pp. 503-511, American Nuclear Society,
  ISBN: 0-89448-132-0 (April 1987).
- D.K. Trubey:
  ANSI/ANS-6.4.3 Draft 4, Rev. 2 (August 1990).
- Y. Harima et al.:
  Development of New Gamma-Ray Buildup Factor and Application to
  Shielding Calculations
  Reprint from J. Nucl. Sci. Technol. 28(1), 74-84 (1991).
- D.K. Trubey:
  ANS643 and Daniel Notes
  RSIC Informal Notes (October 1988, Rev. July 1990).
- D.K. Trubey and Y. Harima:
  New Buildup Factor Data for Point Kernel Calculations.
  Proceedings of Theory and Practices in Radiation Protection and
  Shielding, pp. 503-511, American Nuclear Society,
  ISBN: 0-89448-132-0 (April 1987).
- D.K. Trubey:
  ANSI/ANS-6.4.3 Draft 4, Rev. 2 (August 1990).
- Y. Harima, S. Tanaka, Y. Sakamoto and H. Hirayama:
  Development of New Gamma-Ray Buildup Factor and Application to
  Shielding Calculations
  Reprint from J. Nucl. Sci. Technol. 28(1), 74-84 (1991).

11. MACHINE REQUIREMENTS:

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

15. NAME AND ESTABLISHMENT OF AUTHORS

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;
              Tokyo Institute of Technology;
              Japan Atomic Energy Research Institute.

File name	File description	Records
DLC0129_05.001	Information file	33
DLC0129_05.002	JCL to run sample cases on IBM 3033	14
DLC0129_05.003	DANIEL source program FORTRAN	303
DLC0129_05.004	Geom. progress. coeff. input unit 11	1581
DLC0129_05.005	Attenuation coefficients	506
DLC0129_05.006	Sample case printed output from unit 6	136

File name	File description	Records
DLC0129_09.001	Information file	49
DLC0129_09.002	DANIEL source program (FORTRAN-77)	305
DLC0129_09.003	GP.COE geometric progression coefficients	1581
DLC0129_09.004	DANIEL sample problem input data	6
DLC0129_09.005	DANIEL sample problem printed output	157
DLC0129_09.006	DANIEL.EXE DANIEL executable program	506
DLC0129_09.007	ATTEN.COE Attenuation coefficients	506
DLC0129_09.008	HIGHZ.GP High-Z GP coefficents	547
DLC0129_09.009	IFACE.643 Interface correction factors	145
DLC0129_09.010	README.DOC Notes	147
DLC0129_09.011	COHERENT.643 Coherent scat. correct. factors	404
DLC0129_09.012	TAYLOR.643 Taylor coefficients	1581
DLC0129_09.013	MOM.BF Buildup factors from moment meth.	2135
DLC0129_09.014	MOM.INP Moments method input for DANIEL	2627
DLC0129_09.015	PALLAS.INP DANIEL input fromm PALLAS	1368
DLC0129_09.016	PALLAS.BF Buildup factors from PALLAS	858
DLC0129_09.017	ABSORB.COE Absorption coefficients	170
DLC0129_09.018	DOS File-names	17