NESC0791 TRANSPORT

1. NAME OR DESIGNATION OF PROGRAM:  TRANSPORT

3. DESCRIPTION OF PROBLEM OR FUNCTION

The first- and second-order optical properties of static-magnet charged particle beam transport  systems are analyzed. The program can vary some of the physical parameters of the elements comprising the system and impose various  constraints on the beam design.

This release of TRANSPORT includes the following new features:
- accelerator notation to specify the beam matrix
- expanded fitting capabilities including the ability to constrain   algebraic combinations of matrix elements
- more flexible means of specifying individual or groups of beam   line elements.

4. METHOD OF SOLUTION

The user describes the beam line as a sequence  of elements which may be magnets, the intervals between them or special configurations of the magnets, specifications of the input beam, calculations to be done, and printout required. The program steps through the beam line calculating the appropriate transfer matrix for each element and the products of these matrices.

5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The effects of space charge are assumed to be negligible.

6. TYPICAL RUNNING TIME

Running time is dependent on the number of elements in the beam line. A typical problem requires 10 CPU seconds on the IBM370/168. The NESC executed the sample problems in 35 seconds on an IBM370/195.

NEA-DB executed the two test cases included in this package on IBM 3084Q in 6 seconds of CPU time.

7. UNUSUAL FEATURES OF THE PROGRAM:

8. RELATED AND AUXILIARY PROGRAMS

TURTLE is a ray tracing program which uses input compatible with TRANSPORT. TURTLE takes into consideration some higher-order effects that TRANSPORT cannot calculate. The original first-order TRANSPORT computer program was written in BALGOL by C.H. Moore at SLAC in collaboration with H.S. Butler and S.K. Howry in 1963.

10. REFERENCES:

- K.L. Brown,F. Rothacker, D.C. Carey and Ch. Iselin:
  TRANSPORT - A Computer Program for Designing Charged Particle Beam
  Transport Systems.  SLAC-91 Rev. 2  (May 1977)
- K.L. Brown, F. Rothacker, D.C. Carey and Ch. Iselin:
  TRANSPORT Appendix.   (December 1977)
- D.C. Carey:
  New Features in TRANSPORT.  TM-1064  (September 1981)

11. MACHINE REQUIREMENTS

320K bytes of memory, a card input unit, and  printer and punch output units are used. Numerous versions of TRANSPORT are available for other computers as well as overlayed versions for IBM computers.

240K bytes of main storage are required on IBM 3084Q.

13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:  OS/370.

MVS/SP (IBM 3084Q).

14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

Transfer matrices are written on FORTRAN logical unit 4 for punching.
The XL option of the FORTRAN IV H or H-Extended compiler is required to access the bit-manipulation functions IAND, LOR, and SHFTR.

15. NAME AND ESTABLISHMENT OF AUTHOR

D.C. Carey
Fermi National Accelerator Laboratory
P. O. Box 500
Batavia, Illinois 60510, U. S. A.

File name	File description	Records
NESC0791_02.003	INFORMATION FILE	78
NESC0791_02.004	FORTRAN SOURCE	8500
NESC0791_02.005	ASSEMBLER SOURCE	100
NESC0791_02.006	JCL TO RUN TEST CASES	32
NESC0791_02.007	INPUT DATA FOR SAMPLE CASE 1	17
NESC0791_02.008	PRINTED OUTPUT FOR SAMPLE CASE 1	233
NESC0791_02.009	INPUT DATA FOR SAMPLE CASE 2	1046
NESC0791_02.010	PRINTED OUTPUT FOR SAMPLE CASE 2	9105