Beams Document 5223-v1

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Pressurized Gas Beam Monitor for Extremely Intense Beam Lines

Document #:
Beams-doc-5223-v1
Document type:
Talk
Submitted by:
Fernanda G Garcia
Updated by:
Fernanda G Garcia
Document Created:
30 Aug 2016, 14:11
Contents Revised:
30 Aug 2016, 14:11
Metadata Revised:
30 Aug 2016, 14:11
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Abstract:
A novel pressurized gas-filled multi-RF-cavity beam profile monitor has been studied that is simple and robust in high-radiation environments such as the target and decay sections in the LBNF. Charged particles passing through each RF-cavity in the monitor produce intensity-dependent ionized plasma, which changes the gas permittivity. Standard RF techniques to measure the change in quality factor (Q) and frequency (f) as a function of time are then used to determine the change in permittivity and corresponding beam intensity in each cavity in the profile monitor. The sensitivity to beam intensity is adjustable using gas pressure and RF gradient. The performance of the gas-filled beam profile monitor has been numerically simulated to evaluate the sensitivity of permittivity measurements and the effectiveness of calibration strategies. Status of the project will be presented in this talk.
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