CCC-0651 ICOM.

1. NAME OR DESIGNATION OF PROGRAM:  ICOM.

3. DESCRIPTION OF PROGRAM OR FUNCTION

ICOM calculates the transport characteristics of ion radiation for application to radiation protection, dosimetry and microdosimetry, and radiation physics of solids. Ions in the range Z=1-92 are handled. The energy range for protons is 0.001-10,000 MeV. For other ions the energy range is 0.001-100 MeV/nucleon. Computed quantities include stopping powers,  ranges; spatial, angular and energy distributions of particle current and fluence; spatial distributions of the absorbed dose; and spatial distributions of thermalized ions.

4. METHOD OF SOLUTION

The method of computation is statistical simulation of particle tracks on the framework of the model of condensed collisions with allowance for fluctuations of proton free  path, Monte-Carlo estimates on the simulated tracks, analytical formulae. Stopping powers are computed by empirical method, further  referred to as 'Ziegler et al.'. Some tables of stopping powers for  protons are also included. Users can extend the package by adding their own tables of stopping powers.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM:  None noted.

6. TYPICAL RUNNING TIME:  The program is interactive.

The program was executed on a PC DELL Optiplex GXM 5100 equipped with a Pentium processor of 99 MHz and total memory of 32 MByte. The execution time of the sample problems depends on the number of histories. Typical execution times for a few thousand histories are of the order of a few dozens of seconds.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS:

10. REFERENCES:

- A. Lappa, E. Bigilgeyev, D. Danilov, D. Burmistrov:
  ICOM: Calculation of Transport Characteristics on Ion Radiation
  Chelyabinsk State University Informal Report (1996)

11. MACHINE REQUIREMENTS:  ICOM runs on IBM PC 386 or higher.

The total disk space to install the package files is of the order of 3.5 MByte.

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

The MS Fortran for Power Stations ver. 1.0 compiler was used to create the executables included in the package which runs under either MS DOS o Windows 95.

The program was installed on a PC DELL Optiplex GXM 5100 equipped with a Pentium processor (99 Mhz) and was executed under MS-DOS 6.2

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:
                Chelyabinsk State University,
                Chelyabinsk,
                Russia

File name	File description	Records
CCC0651_01.001	Information file of program ICOM	581
CCC0651_01.002	Self-extracting file with ICOM package files	0
CCC0651_01.003	DOS file-names	2