dorsal/arxiv
View SchemaUltimate parameters of the photon collider at the ILC
| Authors | V. I. Telnov |
|---|---|
| Categories | |
| ArXiv ID | physics/0610285 |
| URL | https://arxiv.org/abs/physics/0610285 |
| DOI | 10.1007/s12043-007-0212-4 |
| Journal | Pramana69:957-962,2007 |
Abstract
At linear colliders, the e+e- luminosity is limited by beam-collision effects, which determine the required emittances of beams in damping rings (DRs). While in gamma-gamma collisions at the photon collider, these effects are absent, and so smaller emittances are desirable. In present damping rings designs, nominal DR parameters correspond to those required for e+e- collisions. In this note, I would like to stress once again that as soon as we plan the photon-collider mode of ILC operation, the damping-ring emittances are dictated by the photon-collider requirements--namely, they should be as small as possible. This can be achieved by adding more wigglers to the DRs; the incremental cost is easily justified by a considerable potential improvement of the gamma-gamma luminosity. No expert analysis exists as of yet, but it seems realistic to obtain a factor five increase of the gamma-gamma luminosity compared to the ``nominal'' DR design.
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"abstract": "At linear colliders, the e+e- luminosity is limited by beam-collision\neffects, which determine the required emittances of beams in damping rings\n(DRs). While in gamma-gamma collisions at the photon collider, these effects\nare absent, and so smaller emittances are desirable. In present damping rings\ndesigns, nominal DR parameters correspond to those required for e+e-\ncollisions. In this note, I would like to stress once again that as soon as we\nplan the photon-collider mode of ILC operation, the damping-ring emittances are\ndictated by the photon-collider requirements--namely, they should be as small\nas possible. This can be achieved by adding more wigglers to the DRs; the\nincremental cost is easily justified by a considerable potential improvement of\nthe gamma-gamma luminosity. No expert analysis exists as of yet, but it seems\nrealistic to obtain a factor five increase of the gamma-gamma luminosity\ncompared to the ``nominal\u0027\u0027 DR design.",
"arxiv_id": "physics/0610285",
"authors": [
"V. I. Telnov"
],
"categories": [
"physics.acc-ph",
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],
"doi": "10.1007/s12043-007-0212-4",
"journal_ref": "Pramana69:957-962,2007",
"title": "Ultimate parameters of the photon collider at the ILC",
"url": "https://arxiv.org/abs/physics/0610285"
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