IBIC2023 - List of Authors (Blokland, W.)

Paper	Title	Page
MO2I01	Non-interceptive Beam Diagnostics in a H⁻ Linac During Operations Using Laser Comb and Virtual Slit
	Y. Liu, W. Blokland ORNL, Oak Ridge, Tennessee, USA
	Several novel techniques have been recently developed for laser wire based non-interceptive H⁻ beam diagnostics. A laser comb ¿ ultrashort laser pulses with macropulse structure ¿ was implemented and used for measuring time-resolved profiles/emittances from a single scan. A virtual slit technique was demonstrated for the precise measurement of short bunches formed in the superconducting linac. Both techniques have been applied to measuring parameters of neutron production H⁻ beam at the linac of the Spallation Neutron Source. Key components in the implementation and operation of the laser comb and virtual slit will be described. Applications of the measurement results to the accelerator physics study will also be discussed.
	Slides MO2I01 [4.378 MB]
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WEP031	Image Acquisition System for the Injection Dump at the Spallation Neutron Source	421
	W. Blokland ORNL, Oak Ridge, Tennessee, USA N.J. Evans, A.R. Oguz, W.D. Willis ORNL RAD, Oak Ridge, Tennessee, USA
	Funding: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). We describe the Image Acquisition system for the Injection Dump. This system visualizes the different beamlets, on the vacuum window after the H⁻ beam is stripped of its electrons by two stripper foils. One beamlet is from H⁻ with its electrons stripped by the first foil and the second beamlet has it final electron stripped by the second foil. We used the PXI platform to implement the data-acquisition including timing decoder. We describe the hardware and software for the system. We use a standard non-radhard GigE camera to acquire the image from the luminescent coating on the dump vacuum window. To lower the radiation damage to the camera, we shield it with stainless steel blocks. We present radiation measurements before and after shielding. We also show the radiation damage over time to estimate the camera’s lifetime.
	Poster WEP031 [1.267 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP031
About •	Received ※ 06 September 2023 — Revised ※ 11 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 27 September 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

MO2I01

Non-interceptive Beam Diagnostics in a H⁻ Linac During Operations Using Laser Comb and Virtual Slit

Y. Liu, W. Blokland
ORNL, Oak Ridge, Tennessee, USA

Several novel techniques have been recently developed for laser wire based non-interceptive H⁻ beam diagnostics. A laser comb ¿ ultrashort laser pulses with macropulse structure ¿ was implemented and used for measuring time-resolved profiles/emittances from a single scan. A virtual slit technique was demonstrated for the precise measurement of short bunches formed in the superconducting linac. Both techniques have been applied to measuring parameters of neutron production H⁻ beam at the linac of the Spallation Neutron Source. Key components in the implementation and operation of the laser comb and virtual slit will be described. Applications of the measurement results to the accelerator physics study will also be discussed.

Slides MO2I01 [4.378 MB]

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEP031

Image Acquisition System for the Injection Dump at the Spallation Neutron Source

421

W. Blokland
ORNL, Oak Ridge, Tennessee, USA
N.J. Evans, A.R. Oguz, W.D. Willis
ORNL RAD, Oak Ridge, Tennessee, USA

Funding: This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE).
We describe the Image Acquisition system for the Injection Dump. This system visualizes the different beamlets, on the vacuum window after the H⁻ beam is stripped of its electrons by two stripper foils. One beamlet is from H⁻ with its electrons stripped by the first foil and the second beamlet has it final electron stripped by the second foil. We used the PXI platform to implement the data-acquisition including timing decoder. We describe the hardware and software for the system. We use a standard non-radhard GigE camera to acquire the image from the luminescent coating on the dump vacuum window. To lower the radiation damage to the camera, we shield it with stainless steel blocks. We present radiation measurements before and after shielding. We also show the radiation damage over time to estimate the camera’s lifetime.

Poster WEP031 [1.267 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-IBIC2023-WEP031

About •

Received ※ 06 September 2023 — Revised ※ 11 September 2023 — Accepted ※ 14 September 2023 — Issue date ※ 27 September 2023

Cite •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)