Title: High-Power Tests of X-Band Dielectric-Loaded Accelerating Structures
Abstract:Dielectric‐loaded accelerating structures offer the potential of a simple, inexpensive alternative to copper disk‐loaded structures for use in high‐gradient rf linear accelerators. However, a variety ...Dielectric‐loaded accelerating structures offer the potential of a simple, inexpensive alternative to copper disk‐loaded structures for use in high‐gradient rf linear accelerators. However, a variety of potential problems must be studied in order to demonstrate this potential, including rf breakdown, joule heating, and gas desorption. A joint Argonne National Laboratory — Naval Research Laboratory program is under way to investigate these issues, using high‐power 11.424‐GHz radiation from the NRL Magnicon Facility. Recent tests using a copper accelerating tube with an alumina liner have shown no evidence of rf breakdown at up to 5 MW drive power (equivalent to 8 MV/m accelerating gradient). However, substantial absorption of the incident microwave radiation was observed, accompanied by visible light emission from the dielectric surface, indicating the presence of electron multipactor in the tube.Read More
Publication Year: 2003
Publication Date: 2003-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 1
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