An Optical and Terahertz Instrumentation System at the FAST LINAC at Fermilab

Conference · Tue Aug 01 04:00:00 EDT 2017

OSTI ID:1413087

Thurman-Keup, R. ^[1]; Lumpkin, A. H. ^[1]; Thangaraj, J. ^[1]

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1. Fermilab

FAST is a facility at Fermilab that consists of a photoinjector, two superconducting capture cavities, one superconducting ILC-style cryomodule, and a small ring for studying non-linear, integrable beam optics called IOTA. This paper discusses the layout for the optical transport system that provides optical radiation to an externally located streak camera for bunch length measurements, and THz radiation to a Martin-Puplett interferometer, also for bunch length measurements. It accepts radiation from two synchrotron radiation ports in a chicane bunch compressor and a diffraction/transition radiation screen downstream of the compressor. It also has the potential to access signal from a transition radiation screen or YAG screen after the spectrometer magnet for measurements of energy-time correlations. Initial results from both the streak camera and Martin-Puplett will be presented.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1413087
• Report Number(s): FERMILAB-CONF-17-369-AD; 1642370
• Country of Publication: United States
• Language: English