OCI Vacuum Microengineering

LEED

AES WITH GAIN POWER OF MICROCHANNEL PLATES

Models BDL800IR-MCP and BDL600IR-MCP

 

Features:

  • High Image Sensitivity at the Primary Beam Current - 50pA
  • Single/Dual 75 mm Microchannel Plates
  • Miniature Electron Gun with Double Focusing
  • AES at Beam Current 50 µA - 10µA
  • Integral Motion & Shutter
  • Suitable for ESDIAD

Specifications Imaging & Energy Analyzer Section

Miniature Electron Gun

Retarding Field Energy Analyzer 4 or 3 hemispherical grid configuration with energy resolution down to 0.2% and Moire pattern reduction
Grid Material

Tungsten with 82% transmission and coating reducing background

Microchannel Plate

80 mm working area, 25 microns pore

  Single Plate .....

electron gain - 103 - 104, spatial resolution - 25 microns

  Chevron .....

electron gain - 106 - 107, spatial resolution - 35 microns

Glass Display

Fused silica flat plate coated with indium-tin oxide and P31 phosphor, 77º o solid angle of view

Working Distance 15 mm
Magnetic Shielding Mu-metal tube with front plate (142 mm O.D.)
Integral Linear Motion

up to 100 mm retraction with rotary motion drive

Integral Linear Shutter

Front mounted disk with rotary motion drive

Mounting 8" (CF150) or 6" ( CF100) double sided conflat flange
Monitoring Standard viewport
Bakeability

Under vacuum - 250º C max.

Beam Energy 5eV - 3000 eV
Beam Current from 20 pA to 200 nA
Beam Size 100 - 250 microns, double focusing mode
Electron Source Thoriated Tungsten/ Single crystal LaB6
Energy Spread 0.45 eV / 0.25 eV
Lenses Einzel lens configuration with double focusing
Lens Material Gold plated Cu base alloy
Overall Sizes

10 mm lens diameter and 80 mm length

Precision Power Supplies
Model LPS 300 / 075 - MCP

Controller with energy range for electron gun :

0 - 3kV and 0 - 750V and analogue computer control port

Model MCPS2 Controller for channelplates with overvoltage and overcurrent protection
Model LOA10-AES Digital AES controller with lock-in amplifier and software for Auger Electron Spectroscopy


download BDL800IR-MCP & BDL600IR-MCP schematics in .pdf format