Beam in Gap measurements at the SNS Front-End

A. Aleksandrov; S. Assadi; W. Blokland; C. Deibele; W. Grice; J. Pogge

Beam in Gap measurements at the SNS Front-End

A. Aleksandrov, S. Assadi, W. Blokland, C. Deibele, W. Grice, J. Pogge

Oak Ridge National Laboratory

Research output: Contribution to conference › Paper › peer-review

Abstract

The pulsed beam in the SNS accelerator has a fine time structure which consists of 695ns long mini-pulses separated by 250ns gaps in order to minimize transient beam losses in the accumulator ring which could arise during the ring extraction kicker rise time. This time structure is provided by a two stage Front End chopping system which must reduce the beam current in the gap to a level of 10^-4 of the nominal current in order to satisfy requirements on the ring extraction losses. A Beam-in-Gap measuring system based on H ^- stripping using NdYAG laser was developed and tested during the SNS Front-End commissioning period. This paper describes the Beam-in-Gap measurement system design and measured performance.

Original language	English
Pages	1524-1526
Number of pages	3
State	Published - 2003
Event	PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference - Portland, OR, United States Duration: May 12 2003 → May 16 2003

Conference

Conference	PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference
Country/Territory	United States
City	Portland, OR
Period	05/12/03 → 05/16/03

Cite this

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title = "Beam in Gap measurements at the SNS Front-End",

abstract = "The pulsed beam in the SNS accelerator has a fine time structure which consists of 695ns long mini-pulses separated by 250ns gaps in order to minimize transient beam losses in the accumulator ring which could arise during the ring extraction kicker rise time. This time structure is provided by a two stage Front End chopping system which must reduce the beam current in the gap to a level of 10-4 of the nominal current in order to satisfy requirements on the ring extraction losses. A Beam-in-Gap measuring system based on H - stripping using NdYAG laser was developed and tested during the SNS Front-End commissioning period. This paper describes the Beam-in-Gap measurement system design and measured performance.",

author = "A. Aleksandrov and S. Assadi and W. Blokland and C. Deibele and W. Grice and J. Pogge",

year = "2003",

language = "English",

pages = "1524--1526",

note = "PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference ; Conference date: 12-05-2003 Through 16-05-2003",

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TY - CONF

T1 - Beam in Gap measurements at the SNS Front-End

AU - Aleksandrov, A.

AU - Assadi, S.

AU - Blokland, W.

AU - Deibele, C.

AU - Grice, W.

AU - Pogge, J.

PY - 2003

Y1 - 2003

N2 - The pulsed beam in the SNS accelerator has a fine time structure which consists of 695ns long mini-pulses separated by 250ns gaps in order to minimize transient beam losses in the accumulator ring which could arise during the ring extraction kicker rise time. This time structure is provided by a two stage Front End chopping system which must reduce the beam current in the gap to a level of 10-4 of the nominal current in order to satisfy requirements on the ring extraction losses. A Beam-in-Gap measuring system based on H - stripping using NdYAG laser was developed and tested during the SNS Front-End commissioning period. This paper describes the Beam-in-Gap measurement system design and measured performance.

AB - The pulsed beam in the SNS accelerator has a fine time structure which consists of 695ns long mini-pulses separated by 250ns gaps in order to minimize transient beam losses in the accumulator ring which could arise during the ring extraction kicker rise time. This time structure is provided by a two stage Front End chopping system which must reduce the beam current in the gap to a level of 10-4 of the nominal current in order to satisfy requirements on the ring extraction losses. A Beam-in-Gap measuring system based on H - stripping using NdYAG laser was developed and tested during the SNS Front-End commissioning period. This paper describes the Beam-in-Gap measurement system design and measured performance.

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M3 - Paper

AN - SCOPUS:4143153983

SP - 1524

EP - 1526

T2 - PAC 2003 - Proceedings of the 2003 IEEE Particle Accelerator Conference

Y2 - 12 May 2003 through 16 May 2003

ER -

Beam in Gap measurements at the SNS Front-End

Abstract

Conference

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