dorsal/arxiv
View SchemaObservation of Enhanced Transformer Ratio in Collinear Wakefield Acceleration
| Authors | C. Jing, A. Kanareykin, J. G. Power, M. Conde, Z. Yusof, P. Schoessow, W. Gai |
|---|---|
| Categories | |
| ArXiv ID | physics/0703012 |
| URL | https://arxiv.org/abs/physics/0703012 |
| DOI | 10.1063/1.2409177 |
| Journal | AIP Conf.Proc.877:511-519,2006 |
Abstract
One approach to future high energy particle accelerators is based on the wakefield principle: a leading high-charge drive bunch is used to excite fields in an accelerating structure or plasma that in turn accelerates a trailing low-charge witness bunch. The transformer ratio R is defined as the ratio of the maximum energy gain of the witness bunch to the maximum energy loss of the drive bunch. In general, for configurations in which the two beams traverse the accelerator along the same trajectory (collinear wakefield acceleration). A number of techniques have been proposed to overcome the transformer ratio limitation. We report here the first experimental study of the ramped bunch train (RBT) technique in which a dielectric loaded waveguide was used as the accelerating structure. A single drive bunch was replaced by two bunches with charge ratio of 1:2.5 and a separation of 10.5 wavelengths of the fundamental mode. An average measured transformer ratio enhancement by a factor of 1.31 over the single drive bunch case was obtained in this experiment.
{
"annotation_id": "ee9b6818-4c88-4e2f-b10c-f590a116d4ca",
"date_created": "2026-03-02T18:01:17.759000Z",
"date_modified": "2026-03-02T18:01:17.759000Z",
"file_hash": "be4329ef11fe64333fd0d6642ee8abe7d2fbec49acd83fce48e7f225aba84b28",
"private": false,
"record": {
"abstract": "One approach to future high energy particle accelerators is based on the\nwakefield principle: a leading high-charge drive bunch is used to excite fields\nin an accelerating structure or plasma that in turn accelerates a trailing\nlow-charge witness bunch. The transformer ratio R is defined as the ratio of\nthe maximum energy gain of the witness bunch to the maximum energy loss of the\ndrive bunch. In general, for configurations in which the two beams traverse the\naccelerator along the same trajectory (collinear wakefield acceleration). A\nnumber of techniques have been proposed to overcome the transformer ratio\nlimitation. We report here the first experimental study of the ramped bunch\ntrain (RBT) technique in which a dielectric loaded waveguide was used as the\naccelerating structure. A single drive bunch was replaced by two bunches with\ncharge ratio of 1:2.5 and a separation of 10.5 wavelengths of the fundamental\nmode. An average measured transformer ratio enhancement by a factor of 1.31\nover the single drive bunch case was obtained in this experiment.",
"arxiv_id": "physics/0703012",
"authors": [
"C. Jing",
"A. Kanareykin",
"J. G. Power",
"M. Conde",
"Z. Yusof",
"P. Schoessow",
"W. Gai"
],
"categories": [
"physics.acc-ph"
],
"doi": "10.1063/1.2409177",
"journal_ref": "AIP Conf.Proc.877:511-519,2006",
"title": "Observation of Enhanced Transformer Ratio in Collinear Wakefield Acceleration",
"url": "https://arxiv.org/abs/physics/0703012"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "218b7e83-a7b3-455b-9d42-d4e816768470",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}