HCES 5000 Hollow Cathode Electron Source

High-Current Electron Emission for Stable Ion Source Operation 

The Intlvac HCES 5000 Hollow Cathode Electron Source delivers stable, regulated electron emission for ionization support and beam neutralization in end-Hall and gridless ion source systems. Designed for reliable operation in inert and reactive gas environments, it eliminates thermionic filaments while enabling long-duration production processes with consistent discharge stability. Engineered for integration with Intlvac Mark II and related ion source platforms, the HCES 5000 supports oxygen and other reactive chemistries requiring dependable plasma performance and reduced maintenance cycles.


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Mark I+ Ion Source

HCES 5000  

HCES 5000 Hollow Cathode Electron Source

High-Current Electron Emission for Stable Ion Source Operation 

The Intlvac HCES 5000 Hollow Cathode Electron Source delivers stable, regulated electron emission for ionization support and beam neutralization in end-Hall and gridless ion source systems. Designed for reliable operation in inert and reactive gas environments, it eliminates thermionic filaments while enabling long-duration production processes with consistent discharge stability. Engineered for integration with Intlvac Mark II and related ion source platforms, the HCES 5000 supports oxygen and other reactive chemistries requiring dependable plasma performance and reduced maintenance cycles. 

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Key Features


Filament-Free Hollow Cathode Design
  • No thermionic filament replacement
  • Reduced consumable components
  • Extended operational lifetime
Stable, Regulated Electron Emission

  • Controlled emission current for consistent plasma density
  • Reliable discharge initiation and sustainment
  • Effective beam neutralization for dielectric processing
Reactive Gas Capability
  • Compatible with oxygen and other reactive gasese
  • Designed for extended reactive process runs
  • Maintains ionization efficiency in demanding environments
Reduced Contamination Risk
  • Eliminates filament-derived contamination sources
  • Supports high-purity thin film and optical coating processes
Production-Ready Reliability
  • Longer run times compared to filament cathodes
  • Reduced maintenance intervals
  • Improved uptime in industrial vacuum systems

Technical Overview


Fundamental Operation
DC plasma discharge
Emission Current:
Up to 10 A
Total Power (Pk + Pe):
1500 W max
Discharge Voltage
10–80 V
Discharge Current
1–2 A
Process Gases
Inert (Ar) and reactive (O₂)
Gas Flow (Cathode):
5–20 sccm typical (Ar)
Cooling
Radiative
Mounting Proximity
~2–10 cm from ion source


Constructed from refractory metals and stainless steel, the HCES 5000 is built for durability in high-vacuum environments.

Power Supply & Control

 The HCES 5000 operates with the Intlvac HCES 15A Power Supply Controller, featuring:

  • Controlled ignition and plasma maintenance
  • Emission current regulation
  • Keeper bias control
  • Automatic start/stop sequencing deposition
  • Integrated gas flow control (4 MFC channels)
  • Arc and short-circuit protection
  • Remote interface capability (RS-232, analog, interlock)
  •  Rack-mount 19” industrial configuration

The controller enables repeatable process recipes and fast transient response for stable plasma operation.

Functional Role in Ion Source System

The HCES 5000 replaces traditional immersed filament cathodes and performs two essential functions within ion beam systems:.

    •  Ionization Support -  Provides a regulated electron stream to initiate and sustain plasma discharge for efficient process gas ionization.
    •  Beam Neutralization - Balances positive ion charge during beam operation, preventing substrate charging and enabling processing of electrically isolated or dielectric materials.

This dual-function capability enhances ion beam stability and ensures consistent thin film performance during extended production cycles.


Operational Advantages 

Compared to filament-based electron sources, the HCES 5000 provides:

    •  Longer operational life
    •  Reduced downtime for cathode replacement
    • Improved performance in reactive gas environments
    • More consistent plasma conditions over extended runs

When combined with water-cooled anode configurations, the HCES 5000 supports cooler operation and enhanced thermal stability in demanding industrial processes.

System Integration

The HCES 5000 integrates with compatible Intlvac ion source platforms, including:

    •  Mark II series ion sources
    •  Water-cooled ion source configurations
    • Reactive gas coating systems
    • Production-scale optical coating platforms

Its hollow cathode architecture enhances plasma stability, reduces maintenance cycles, and supports repeatable thin film processing in integrated vacuum environments.

Why Choose Intlvac Thin Film?

Intlvac Thin Film systems are built for precision coating, research flexibility, and industrial reliability. The Mark I⁺ Ion Source integrates seamlessly into:

  • Optical coating densification
  • Ion-assisted deposition (IAD)
  • Pre-deposition substrate cleaning
  • Surface activation

We combine advanced plasma engineering with practical system design to deliver reproducible, high-quality thin films.

Why Choose Intlvac Thin Film?

Intlvac Thin Film systems are built for precision coating, research flexibility, and industrial reliability. The Mark I⁺ Ion Source integrates seamlessly into:

  • Optical coating densification
  • Ion-assisted deposition (IAD)
  • Pre-deposition substrate cleaning
  • Surface activation

We combine advanced plasma engineering with practical system design to deliver reproducible, high-quality thin films.  

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