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- 499 MHz rf separators (1)
- 499 MHz transverse vertical deflection to 1497 MHz bunch train (1)
- 5 pass electron beam (1)
- Crabbing cavities (1)
- Deflecting voltage (1)
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- Design optimization (1)
- Electric and magnetic fields (1)
- Electromagnetic design (1)
- Invariant momentum transfer (1)
- Mesons (1)
- Options (1)
- Partial wave amplitudes (1)
- Photon energy (1)
- Photon energy range 3.0-3.8 GeV² (1)
- Photoproduction experiment (1)
- Spectroscopy (1)
- Superconducting RF (1)
- Superconducting design (1)
- Superconducting geometry (1)
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
A New Tem-Type Deflecting And Crabbing Rf Structure, Jean R. Delayen, H. Wang
A New Tem-Type Deflecting And Crabbing Rf Structure, Jean R. Delayen, H. Wang
Physics Faculty Publications
A new type of rf structure for the deflection and crabbing of particle bunches is introduced. It is comprised of a number of parallel TEM-resonant lines operating in opposite phase from each other. One of its main advantages is its compactness compared to conventional crabbing cavities operating in the TM110 mode, thus allowing low frequency designs. The properties and characteristics of this type of structure are presented.
Design Optimization Of Superconducting Parallel-Bar Cavities, Subashini De Silva, Jean R. Delayen
Design Optimization Of Superconducting Parallel-Bar Cavities, Subashini De Silva, Jean R. Delayen
Physics Faculty Publications
The parallel-bar structure is a new superconducting geometry whose features and properties may have significant advantages over conventional superconducting deflecting and crabbing cavities for a number of applications. Jefferson Lab is in need for a 499 MHz, 11 GeV rf separator as part of its 12 GeV upgrade program. We report on design optimization studies performed todate for this and other applications.
Measurement Of Direct Fₒ(980) Photoproduction On The Proton, K. P. Adhikari, H. Bagdasaryan, S. Bültmann, S. L. Careccia, K. V. Dharmawardane, G. E. Dodge, N. Kalantarians, A. Klein, A.V. Klimenko, S. E. Kuhn, J. Lanchiet, M. R. Niroula, J. Zhang
Measurement Of Direct Fₒ(980) Photoproduction On The Proton, K. P. Adhikari, H. Bagdasaryan, S. Bültmann, S. L. Careccia, K. V. Dharmawardane, G. E. Dodge, N. Kalantarians, A. Klein, A.V. Klimenko, S. E. Kuhn, J. Lanchiet, M. R. Niroula, J. Zhang
Physics Faculty Publications
We report on the results of the first measurement of exclusive f0(980) meson photoproduction on protons for Eγ = 3.0–3.8 GeV and −t = 0.4–1.0 GeV2 . Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. The resonance was detected via its decay in the π+π− channel by performing a partial wave analysis of the reaction γp→pπ+π− . Clear evidence of the f0(980) meson was found in the interference between P and S waves at M π+π− ∼1 GeV. The S -wave differential …
Options For An 11 Gev Rf Beam Separator For The Jefferson Lab Cebaf Upgrade, Jean R. Delayen, M. Spata, H. Wang
Options For An 11 Gev Rf Beam Separator For The Jefferson Lab Cebaf Upgrade, Jean R. Delayen, M. Spata, H. Wang
Physics Faculty Publications
The CEBAF accelerator at Jefferson Lab has had, since first demonstration in 1996, the ability to deliver a 5-pass electron beam to experimental halls (A, B, and C) simultaneously. This capability is provided by a set of three, room temperature 499 MHz rf separators in the 5th pass beamline. The separator cavity is a two-rod, two-cell TEM mode type resonator, which has high shunt impedance. The 12 GeV baseline design does not preserve the capability of separating the 5th pass, 11 GeV beam for the 3 existing halls. Several options for restoring this capability, including extension of the present room …