A TM01 mode launcher with quadrupole field components cancellation for high brightness applications

Autor: Castorina, Giovanni, Cahill, Alexander, Cardelli, Fabio, Celona, Luigi, Dolgashev, Valery, Ficcadenti, Luca, Franzini, Giovanni, Gammino, Santo, Marcelli, Augusto, Migliorati, Mauro, Mostacci, Andrea, Palumbo, Luigi, Rosenzweig, James, Sorbello, Gino, Spataro, Bruno, Torrisi, Giuseppe

The R&D of high gradient radiofrequency (RF) devices is aimed to develop innovative accelerating structures based on new manufacturing techniques and materials in order to construct devices operating with the highest accelerating gradient. Recent stu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fa57fd97c1cc6dea8721b2336480a74
http://hdl.handle.net/20.500.11769/368642

Ultra-High Accelerating Gradients in Radio-Frequency Cryogenic Copper Structures

Autor: Cahill, Alexander

Publikováno v: Cahill, Alexander. (2017). Ultra-High Accelerating Gradients in Radio-Frequency Cryogenic Copper Structures. UCLA: Physics 0666. Retrieved from: http://www.escholarship.org/uc/item/4tq17434

Normal conducting radio-frequency (rf) particle accelerators have many applications, including colliders for high energy physics, high-intensity synchrotron light sources, non-destructive testing for security, and medical radiation therapy. In these

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______325::0e4610d8fab3faec73456b7ccc6f5521
http://www.escholarship.org/uc/item/4tq17434

High Gradient S-Band Cryogenic Accelerating Structure for RF Breakdown Studies

Autor: Cahill, Alexander, Bowden, Gordon, Dolgashev, Valery, Fukasawa, Atsushi, Rosenzweig, James, Tantawi, Sami

Operating accelerating gradient in normal conducting accelerating structures is often limited by rf breakdowns. The limit depends on multiple parameters, including input rf power, rf circuit, cavity shape, cavity temperature, and material. Experiment

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::825409d7cd56e1dd513e7522e8622e80

Quality Factor in High Power Tests of Cryogenic Copper Accelerating Cavities

Autor: Cahill, Alexander, Dolgashev, Valery, Franzi, Matt, Rosenzweig, James, Tantawi, Sami, Weathersby, Stephen

Recent SLAC experiments with cryogenically cooled 11.4 GHz standing wave copper accelerating cavities have shown evidence of 250 MV/m accelerating gradients with low breakdown rates. The gradient depends on the circuit parameters of the accelerating

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0d4e03b4ce613a5c0dbe29625ba4cfe0

TM01 Mode Launcher for Use in High Brightness Photoguns

Autor: Cahill, Alexander, Dal Forno, Massimo, Dolgashev, Valery

Photo rf guns are a source of electron beams for X-ray FELs such as LCLS and European XFEL. In existing photoguns power is coupled into the cavity by waveguides through the cell walls, like LCLS, or through coaxial coupling, at the European XFEL. We

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff821e32aeca1fdb56242adf114f8c7e