Beam Imaging System

Categories: Beam diagnostics Beam imaging based analysis
Manufacturer: DREEBIT GmbH
The Beam Imaging System (BIS) allows the user to detect and evaluate particle beam cross sections in real-time in a high vacuum or ultra high vacuum environment. It creates an image of the beam by converting the incident beam signal into visible light.
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Description

The Beam Imaging System (BIS) allows the user to detect and evaluate particle beam cross sections in real-time in a high vacuum or ultra high vacuum environment. It creates an image of the beam by converting the incident beam signal into visible light which can be monitored through the glass vacuum window.

In detail, the system comprises a linear feedthrough for moving the BIS in and out of the charged particle beam axis, high voltage feedthroughs, as well as a glass viewport mounted onto a DN 100 CF support flange. The actual BIS inside the vacuum chamber consists of a chevron-type micro channel plate (MCP) for low-current signal amplification, a phosphor screen for signal conversion to visible light, a mirror, and a CCD camera including a macro zoom lens.

In case medium beam intensities are to be analyzed which do not require MCP amplification, the system is delivered with the phosphor screen only.

Via the CCD camera a digital image of the beam can be transferred to a PC for further analysis. The complete beam imaging system can be remote controlled which is important if access to the beamline is limited during beam operation. A control software and a PC system with the installed software are optionally available.

Parameters

Beam Imaging System Parameters
beam current range 0.1 pA ... 500 nA
beam energy acceptance 10 ... 60 keV (higher energies on request)
max. detectable beam diameter 25 mm, 40 mm (larger diameters on request)
vertical travel min. 50 mm (at 25 mm diameter) or 100 mm (at 40 mm diameter) (other travel distances on request)
General Parameters
mounting flange DN 100 CF
height 480 mm
weight 10 kg (22 lbs)
max. bakeout temperature 150 °C
Infrastructural Requirements
vacuum conditions during operation suitable from 1e-10 mbar up to 1e-6 mbar

Scope of Delivery

  • Beam Imaging System meter incl. manual linear motion feedthrough and tailored cables
  • power supplies incl. tailored cables
  • hardware and software for computer-based remote control and data evaluation

Optional Equipment

  • remote controllable linear motion feedthrough
  • vacuum chamber with beamline connection flanges according to customer specifications

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