Computer Programs

NEA-1892 CUMYIELD.MT.

NEA-1892 CUMYIELD.MT.

CUMYIELD.MT, cumulative yields calculations of radioactive decay isotopes considering decay chain

NAME, COMPUTER, PROBLEM, SOLUTION, CPU, FEATURES, AUXILIARIES, STATUS, REFERENCES, LANGUAGE, OTHER RESTRICTIONS, AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM

cumYield.MT

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
CUMYIELD.MT	NEA-1892/01	Arrived	10-JUN-2016

Machines used:

Package ID	Orig. computer	Test computer
NEA-1892/01	Many Computers

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3. DESCRIPTION OF PROGRAM OR FUNCTION

cumYield.MT calculates the cumulative yields of radioactive decay isotopes considering decay chain. The result displays the cumulative yields of each atomic number, mass number and isotopes. Moreover, radiation spectra can be yielded with Root data format. This program is designed to obtain cumulative fission yields thus the rates of radioactive decay isotope are required as input file. The data library related to decay chain and gamma transition is originated from Evaluated Nuclear Structure Data File (ENSDF). Making the photon evaporation data or radioactive data appropriate form, the latest evaluated nuclear structure data can be used instead of Geant4 data files.

In this program, the isotopes of which half-lives are longer than micro seconds are considered isomer state although the criterion of ENSDF is nano seconds.

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4. METHODS

The Monte-Carlo method is used.

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6. TYPICAL RUNNING TIME

The running time of the calculation depends on the number of input isotopes and the number of events. A calculation of 1,000,000 events with 1000 isotopes takes about 100 seconds on an Intel i7 dual core process (1.90 GHz).

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7. UNUSUAL FEATURES OF THE PROGRAM

The latest update ENSDF can be used for the calculation of cumulative fission yields and radiation spectra.

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8. RELATED OR AUXILIARY PROGRAMS

Geant4.10.2.0 or higher version and related data files such as G4RadioactiveDecay and G4PhotonEvaporation. Also, Cern Root is required to analyze to the radiation spectrum data.

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9. STATUS

Package ID	Status date	Status
NEA-1892/01	10-JUN-2016	Masterfiled Arrived

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10. REFERENCES

NEA-1892/01, included references:

- Report on the Validation of the Code
- User's manual of cumYield.MT

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-1892/01	C++

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Any operating systems that support the Geant4 version 10.2.0 or higher. Note that Microsoft Windows platform currently not support multithreading.

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15. NAME AND ESTABLISHMENT OF AUTHORS

Jounghwa Lee, Choong-Sup Gil, Do Heon Kim

Korea Nuclear Data Center

Korea Atomic Energy Research Institute (KAERI)

111, Daedeok-daero 989Beon-gil, Yuseong-gu, Daejeon

Republic of Korea

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16. MATERIAL AVAILABLE

NEA-1892/01

program source files
operating instructions with a description of the input data and edited output
sample problem
library data files
program description
Report on the Validation of the Code

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17. CATEGORIES

D. Depletion, Fuel Management, Cost Analysis, and Power Plant Economics

Keywords: Monte Carlo method, decay, radioactive isotopes.