NEA-1249 ORION-II.

ORION-II, Concentration and Dose from Radioactive Release into Atmosphere

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 AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: ORION-II.

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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
ORION-II	NEA-1249/01	Tested	16-JAN-1991

Machines used:

Package ID	Orig. computer	Test computer
NEA-1249/01	FACOM M-780	IBM 3090

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3. DESCRIPTION OF PROGRAM OR FUNCTION

ORION-II has been developed to estimate environmental concentration and dose due to airborne release of radioactive material from multiple sources of nuclear fuel cycle facilities.
The modified Gaussian plume model is applied to calculate atmospheric dispersion. The plume depletion models such as gravitational settling, dry deposition, precipitation scavenging and radioactive decay are considered as the causes of the depletion and deposition on the ground and vegetation.
Inhalation and oral intake are considered as the internal exposure pathways, and submersion in the radioactive cloud and external exposure to ground surface contamination are considered as the external exposure pathways.

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4. METHOD OF SOLUTION:

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

     Number of nuclides:         30
     Number of release sources:  10
     Number of food chains:      10

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6. TYPICAL RUNNING TIME

About 10 minutes on IBM small size systems with the sample input data.

NEA-1249/01

NEA-DB compiled the program and executed the test case included in this package on an IBM 3090 in ca. 20 seconds of CPU time.

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7. UNUSUAL FEATURES OF THE PROGRAM

ORION-II is able to calculate the multiple source effects in a single execution.

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8. RELATED AND AUXILIARY PROGRAMS:

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9. STATUS

Package ID	Status date	Status
NEA-1249/01	16-JAN-1991	Tested at NEADB

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10. REFERENCES:

NEA-1249/01, included references:

- T. Asano, K. Shinohara and O. Narita :
  A Computer Code to Estimate Environmental Concentration
  and Dose Due to Airborne Release of Radioactive Material.
  PNCT N8410-87-17-Tr  (JW236)  (August 1987)

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11. MACHINE REQUIREMENTS: Hard disk, line printer and about 1 Mbyte memory.

NEA-1249/01

The test run on an IBM 3090 required 900 Kbytes of main storage.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-1249/01	FORTRAN-IV

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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED: IBM OS.

NEA-1249/01

VMS/XA (IBM 3090).

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:

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15. NAME AND ESTABLISHMENT OF AUTHORS

Tomohiro Asano, Kunihiko Shinohara and Osamu Narita
Health and Safety Division
Tokai-Works
Power Reactor and Nuclear Fuel Development Corporation
Tokai-mura, Naka-Gun, Ibaraki-ken, 319-11

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16. MATERIAL AVAILABLE

NEA-1249/01

File name	File description	Records
NEA1249_01.001	Information file	84
NEA1249_01.002	ORION-II source program	4221
NEA1249_01.003	JCL to compile, link and run ORION-II	120
NEA1249_01.004	Sample input	97
NEA1249_01.005	Sample output provided by the authors	4817
NEA1249_01.006	Sample output obtained at NEADB	4819