IPAC2016 - List of Authors (Rybarcyk, L.)

Paper	Title	Page
MOPOR043	High-gradient Structures for Proton Energy Boosters	692
	S.S. Kurennoy, L. Rybarcyk LANL, Los Alamos, New Mexico, USA
	Increasing energy of proton beam at LANSCE from 800 MeV to 3 GeV can improve radiography resolution ~10 times. The best current practice to achieve this energy boost is to employ superconducting (SC) RF cavities with gradients about 15 MV/m after the existing linac, which results in a long and expensive booster. We propose accomplishing the same with a room-sized booster based on high-gradient (100s MV/m) room-temperature RF accelerating structures operating at low duty factors. Such high-gradient (HG) structures at very high RF frequencies have been demonstrated for electrons. However, they have never been used for protons because typical RF wavelengths are smaller than the proton bunch length. This is not a problem for proton radiography (pRad): a train of very short proton bunches with the same total length (10s ps) and charge as the original proton bunch will work as well, i.e., will create one radiography frame. Such a compact HG pRad booster can also be about an order of magnitude cheaper than the SC one. We explore feasibility of HG structures for protons and their application for a compact pRad booster at LANSCE.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOR043
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TUOAA01	Operation of LANSCE Linear Accelerator with Double Pulse Rate and Low Beam Losses	1004
	Y.K. Batygin, J.S. Kolski, R.C. McCrady, L. Rybarcyk LANL, Los Alamos, New Mexico, USA
	Funding: Work supported by US DOE under contract DE-AC52-06NA25396 In 2014 LANSCE accelerator facility return to 120 Hz pulse rate operation after long period of operation at 60 Hz pulse rate. Increased capabilities require careful tuning of all components of linear accelerator. Transformation to double pulse rate resulted in re-evaluation of tuning procedures in order to meet new challenges in beam operation. The paper summarizes experimental activity on sustaining of high productivity of accelerator facility while keeping beam losses along accelerator at the low level.
	Slides TUOAA01 [14.886 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUOAA01
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

High-gradient Structures for Proton Energy Boosters

692

S.S. Kurennoy, L. Rybarcyk
LANL, Los Alamos, New Mexico, USA

Increasing energy of proton beam at LANSCE from 800 MeV to 3 GeV can improve radiography resolution ~10 times. The best current practice to achieve this energy boost is to employ superconducting (SC) RF cavities with gradients about 15 MV/m after the existing linac, which results in a long and expensive booster. We propose accomplishing the same with a room-sized booster based on high-gradient (100s MV/m) room-temperature RF accelerating structures operating at low duty factors. Such high-gradient (HG) structures at very high RF frequencies have been demonstrated for electrons. However, they have never been used for protons because typical RF wavelengths are smaller than the proton bunch length. This is not a problem for proton radiography (pRad): a train of very short proton bunches with the same total length (10s ps) and charge as the original proton bunch will work as well, i.e., will create one radiography frame. Such a compact HG pRad booster can also be about an order of magnitude cheaper than the SC one. We explore feasibility of HG structures for protons and their application for a compact pRad booster at LANSCE.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOR043

Export •

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

TUOAA01

Operation of LANSCE Linear Accelerator with Double Pulse Rate and Low Beam Losses

1004

Y.K. Batygin, J.S. Kolski, R.C. McCrady, L. Rybarcyk
LANL, Los Alamos, New Mexico, USA

Funding: Work supported by US DOE under contract DE-AC52-06NA25396
In 2014 LANSCE accelerator facility return to 120 Hz pulse rate operation after long period of operation at 60 Hz pulse rate. Increased capabilities require careful tuning of all components of linear accelerator. Transformation to double pulse rate resulted in re-evaluation of tuning procedures in order to meet new challenges in beam operation. The paper summarizes experimental activity on sustaining of high productivity of accelerator facility while keeping beam losses along accelerator at the low level.

Slides TUOAA01 [14.886 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUOAA01

Export •

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