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FS 40A1 FLOOD SOURCE

DESCRIPTION

Low cost electron Flood Source for charge neutralisation of insulators or semiconductors in XPS/AES and SIMS applications.The Flood Source operates in two energy ranges, is fully software controlled and can also be supplied with custom insertion lengths (145 – 421 mm, other on request) and shielding materials, e.g. mu-metal, copper.

FEATURES

  • High electron beam current
  • Selectable energy ranges
  • Stabilised emission
  • Beam profile control

OPTIONS

  • Linear shift
  • Customised insertion length
  • Source shielding material (µ-metal or copper)

TECHNICAL DATA

Mounting flange            DN 40 CF (non-rotatable)

Energy range                0.01 – 500 eV

Sample current             up to 100 µA

Cathode type              thoriated tungsten

Shield                        Cu or µ-metal

Insertion length             min. 145 mm (other on request)
OD: 33.6 mm  (µ-metal), 35 mm (Cu)

Beam diameter             depending on working distance
(FWHM)                      (e.g. 10 mm for distance 30 mm)

Typical working              20 – 100 mm

distance

Bakeout temperature       up to 250 °C

Working pressure            < 5×10-6 mbar

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