Spherical Sector Electrostatic Energy Analyzers

Comstock offers a series of spherical sector electrostatic energy analyzers (ESA's) from small sizes for tight spaces to larger sizes for high energy resolution or throughput.

Features:

• High energy resolution
• Double focussing
• All UHV compatible materials, bakeable to 450 degrees Celsius
• 5 choices in sizes from 18.3 mm mean radius (AC-900 shown in figure) to 127.0 mm
• Angle between entrance and exit from 144 to 170 deg.

Accessories:

• ES-101 Power Supply for application of all voltages, tuning and energy scanning
• Electric and magnetic field shielding enclosures
• CP-602 microchannel plate detector for pulse counting and low signal intensities
• FC-603 Faraday cup detector for high current levels
• EL-321 focussing lens
• EL-302 retarding and focussing lens

Special Analyzers:

• Custom angles between entrance and exit
• Custom mean radii
• Open exit aperture with position sensitive detector
• Full hemisphere analyzers

Special Configurations:

• Electron monochromators
• Energy-selective time-of-flight mass spectrometry (ESA-TOF)
• Photoelectron/time-of-flight mass spectrometry coincidence spectrometers

Applications:

• Atomic and molecular physics experiments
• Energy selective mass spectroscopy
• Plasma analysis
• Photoelectron/time-of-flight mass spectrometry coincidence experiments
• Highly electron energy resolved electron impact ionization time-of-flight mass spectrometry
• Measurement of ionization potentials
• Energy resolved electron attachment spectroscopy
• Photoelectron spectroscopy (PES)
• Auger emission spectroscopy (AES)
• Electron energy loss spectroscopy (EELS)
• High resolution electron energy loss spectroscopy (HREELS)