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Ion sources and traps

MaMFIS - 4

Tiny MaMFIS Tiny MaMFIS
Tiny ion source with electron beam energy Ee in the 100 eV to 4 keV range.
Left photo: electron collector with water cooling for high-energy electron beam
Right photo: electron collector with air cooling for low-energy electron beam
Efficient ionization
electrons with binding energy of up to 2 keV
Electron current Ie
5 mA – 50 mA
Electron current density
25 A/cm2 - 10 kA/cm2
Discretely variable magnetic field created by permanent magnets
Fields of application:
  • plasma physics
  • atomic physics
  • single ion implantation
  • interaction of highly charged ions with solid-state surface
  • charge breeding of short-lived radioactive isotopes
Graph 1 Graph 2
X-ray spectrum of iridium and cerium ions (cathode materials) recorded with the use of a Si-PIN photodiode in one hour run.

MaMFIS - 10

MaMFIS-10 MaMFIS-10
Compact ion source/trap with electron beam energy Ee of up to 10 keV.
Efficient ionization
electrons with binding energy of up to 6 keV
Electron current Ie
up to 50 mA
Electron current density
up to 20 kA/cm2
Fields of application:
  • plasma physics
  • atomic physics
  • single ion implantation
  • interaction of highly charged ions with solid-state surface
  • charge breeding of short-lived radioactive isotopes
Graph 1
X-ray spectrum of iridium and cerium ions (cathode materials) recorded with the use of a Si-PIN photodiode in one hour run.

MaMFIS - 30

MaMFIS-30 ion source MaMFIS-30 ion source
Compact ion source/trap with electron beam energy Ee of up to 30 keV.
Left photo: The device installed at the Justus Liebig University Giessen
Right photo: The device installed at the Joint Institute for Nuclear Research in Dubna
Efficient ionization
electrons with binding energy of up to 20 keV
Electron current
up to 50 mA
Electron current density
up to 20 kA/cm2
Fields of application:
  • plasma physics
  • atomic physics
  • single ion implantation
  • interaction of highly charged ions with solid-state surface
  • charge breeding of short-lived radioactive isotopes
Graph 1 Graph 2
Graph 3 Graph 4
Spectra of iridium, cerium and xenon ions

Components

Spare pieces necessary for operation of all devices of the MaMFIS family and for the electron-beam technology are available.

Standard electron guns

Standard electron guns
The electron guns have been developed for a wide range of applications. The guns have modular design. This principle allows one easily to make the necessary electron gun by using the standard elements. The guns for the electron energy range from 100 eV up to 100 keV, including the guns with the control of the Wehnelt potential, are available.
Electron energy Ee
100 eV – 100 keV

Electron guns transparent for pumping

Trans EG10 kV Trans EG30 kV
The design allows one to pump out the ion source in the region of the electron gun unit in the axial direction.
Left image: Trans EG10 kV (CF35)
Right image: Trans EG30 kV (CF66/CF35)

Cathode units

Cathode units for the MaMFIS Apex ceramic base with metallic alloy cathode
The original design of the cathode unit allows one easily to make the cathodes with different ceramic bases and the Wehnelt electrodes. The Apex, Kimball, Denka and other cathodes can also be used.
Left image: Cathode units for the MaMFIS
Right image: Apex ceramic base with metallic alloy cathode (the cathode unit made for CERN)