Probing the electron distribution inside the ATA beam pulse

Paul, A.C.; Chong, Y.P.; Kallman, J S; Neil, V. K.; Lee, Ping

doi:10.1016/0168-9002(91)90717-5

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1998

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“…The Gated Beam Imager is based on the pepperpot beam diagnostic method which has previously been used to diagnose electron beams (1). In the pepperpot method where a mask, or hole plate, with small holes (the pepperpot) is introduced into the beam, the beam ions are stopped by the hole plate except where they pass through the holes forming small beamlets.…”

Section: The Devicementioning

confidence: 99%

Gated beam imager for heavy ion beams

Ahle¹,

Hopkins²

1998

AIP Conference Proceedings

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Abstract. As part of the work building a small heavy-ion induction accelerator ring, or recirculator, at Lawrence Livermore National Laboratory, a diagnostic device measuring the four-dimensional transverse phase space of the beam in just a single pulse has been developed. This device, the Gated Beam Imager (GBI), consists of a thin plate filled with an array of 100-micron diameter holes and uses a Micro Channel Plate (MCP), a phosphor screen, and a CCD camera to image the beam particles that pass through the holes after they have drifted for a short distance. By time gating the MCP, the time evolution of the beam can also be measured, with each time step requiring a new pulse.

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Section: The Devicementioning

confidence: 99%