A novel longitudinal laserwire to non-invasively measure 6-dimensional bunch parameters at high current hydrogen ion accelerators
A novel longitudinal laserwire to non-invasively measure 6-dimensional bunch parameters at high current hydrogen ion accelerators
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一种新型纵向激光线,可在高电流氢离子加速器上非侵入式测量六维束参数
DOI:
10.1088/1742-6596/1067/7/072016
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Gibson S
中科院分区:
文献类型:
--
作者:
Gibson S
Optical methods for non-invasive beam diagnostics of high current H− ion accelerators have been developed in recent years. Such laserwires typically measure a 1D beam profile and/or 2D transverse emittance from the products of photo-detached ions as a laser beam is scanned across the H− beam. For laser pulse durations (∼ 80 ns) longer than the RF period (∼ 3ns), the detector integrates many complete bunches, enabling only transverse beam monitoring. This paper presents a new technique to capture a series of time resolved transverse emittance measurements along the bunch train. A fast (∼ 10 ps) pulsed laser photo-detaches ions within each bunch and is synchronised to sample consecutive bunches at certain longitudinal positions along each bunch. A fast detector records the spatial distribution and time-of-flight of the neutralised H 0, thus both the transverse and longitudinal emittance are reconstructed. We present simulations of a time varying pulsed laser field interacting within an H− bunch, and estimate the yield, spatial and time distributions of H 0 arriving at the detector. We summarise the design of a recently funded longitudinal laserwire being installed in FETS at RAL, UK.
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DOI:
10.1016/0168-583x(91)96007-8
发表时间:
1991
影响因子:
1.3
作者:
C. R. Quick;J. Donahue;Stanley. Cohen;H. Bryant;C. Y. Tang;P. Harris;A. Mohagheghi;R. Reeder;H. Sharifian;H. Toutounchi;W. Smith
通讯作者:
W. Smith
DOI:
--
发表时间:
2017
期刊:
--
影响因子:
--
作者:
Hofmann T
通讯作者:
Hofmann T
DOI:
10.1103/physrevstab.18.122801
发表时间:
2015
期刊:
Physical Review Special Topics - Accelerators and Beams
影响因子:
--
作者:
Hofmann T
通讯作者:
Hofmann T
DOI:
10.1016/0168-9002(90)90383-h
发表时间:
1990
影响因子:
1.4
作者:
P. Harris;H. Bryant;A. Mohagheghi;R. Reeder;C. Y. Tang;J. Donahue;C. R. Quick;D. Rislove;H. Sharifian;H. Tootoonchi;T. C. Altman
通讯作者:
T. C. Altman
DOI:
10.1016/j.nima.2016.02.018
发表时间:
2016
期刊:
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
作者:
Hofmann T
通讯作者:
Hofmann T