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Manuscript Title: Tomographic measurements of longitudinal phase space density.
Authors: S. Hancock, M. Lindroos, E. McIntosh, M. Metcalf
Program title: tomo_v1
Catalogue identifier: ADKE_v1_0
Distribution format: tar.gz
Journal reference: Comput. Phys. Commun. 118(1999)61
Programming language: Fortran.
Computer: Alpha EV56.
RAM: 16M words
Word size: 32
Keywords: Particle physics, Elementary, Inverse problems, Tomography, Particle tracking, Particle, Accelerators.
Classification: 11.10.

Nature of problem:
The reconstruction of the longitudinal phase space density of particles in a synchrotron from one-dimensional bunch profile data.

Solution method:
A hybrid algorithm [1] which combines particle tracking with iterative Algebraic Reconstruction Techniques (ART) [2].

The particle tracking is very elementary and the only parameter variations considered are constant first-order time derivatives of the dipole magnetic field and rf voltages of the accelerator.

Unusual features:
Arbitrarily complex rf systems can be catered for by modifying a small part of the code. Likewise the method may be extended to cover any non-rigid body for which a model governing its deformation exists.

Running time:
Execution time depends strongly on the resolution and number of images required and on the accelerator parameters involved, but is typically several minutes per image.

[1] S. Hancock, "A Simple Algorithm for Longitudinal Phase Space Tomography", CERN PS/RF/Note 97-06, 1997.
[2] R. Gordon, "A Tutorial on ART", IEEE Trans. Nucl. Sci., NS-21, pp. 78-93, 1974.