JES-X3 Series

The JES-X3 Series Electron Spin Resonance (ESR) spectrometers by JEOL represent a significant advancement in the detection and analysis of materials with unpaired electrons. Recognizing the profound impact that even a minimal number of unpaired electrons can have on material properties, the JES-X3 Series is engineered to offer enhanced sensitivity and precision, addressing the growing demand for lower detection limits in ESR measurements.

Key Features:

• Enhanced Sensitivity: At the heart of the JES-X3 Series is an ultra-low noise Gunn oscillator, which delivers a 30% improvement in sensitivity over previous models. This advancement enables the detection of subtle ESR signals that were previously challenging to observe. ​
• Integrated Microwave Frequency Counter: The inclusion of a built-in microwave frequency counter ensures accurate frequency measurements, enhancing the reliability of experimental results.
• User-Friendly Interface: Designed with an intuitive graphical user interface, the JES-X3 Series simplifies operation, making it accessible to both novice and experienced users. The interface supports various automatic measurement modes, streamlining the data acquisition process. ​
• Flexible Measurement Capabilities: The spectrometer offers a range of automatic measurement modes and supports sequential measurements with flexible parameter settings. This feature is particularly useful for observing dependencies such as time, temperature, and angle, facilitating comprehensive analyses of sample behaviors.
• Versatile Magnet Options: To accommodate diverse research needs, the JES-X3 Series provides three types of magnets, allowing users to select the most appropriate configuration for their specific applications. ​
• Zero Cross-Field Sweep Function: This function enhances the precision of magnetic field measurements, contributing to more accurate ESR analyses.
• Comprehensive Attachments: A wide variety of attachments are available, expanding the functionality of the spectrometer and enabling tailored configurations to meet specialized research requirements.

Specifications:

The JES-X3 Series includes three models—JES-X310, JES-X320, and JES-X330—each designed to cater to different research demands.​

• Spectrometer Dimensions: All models share compact dimensions of 300×602×602 mm and a weight of 35 kg, optimizing laboratory space utilization.​
• Electromagnet Dimensions and Weight:
  • JES-X310: 1,400×710×1,105 mm; 520 kg​
  • JES-X320: 1,400×803×1,190 mm; 1,060 kg​
  • JES-X330: 1,400×990×1,190 mm; 2,300 kg​
• Excitation Power Supply:
  • JES-X310: Integrated within the magnetic chassis
  • JES-X320: Dimensions of 683×613×895 mm; 300 kg​
  • JES-X330: Dimensions of 703×803×1,114 mm; 500 kg​

Applications:

The JES-X3 Series is adept at addressing a broad spectrum of research applications, including:​

• Temperature-Dependent ESR Line Shape Analysis: Investigating how ESR line shapes vary with temperature changes, providing insights into material behaviors under different thermal conditions.
• Paramagnetic Vacancy Studies: Examining paramagnetic vacancies in synthetic quartz glass to understand defect structures and their implications on material properties.
• Magnetic Nanoparticle Research: Analyzing size effects and electronic states in magnetic nanoparticles, which is crucial for applications in data storage, medical diagnostics, and targeted therapies.
• Dual Mode Cavity Applications: Utilizing the Dual Mode Cavity (ES-14040DMC) for advanced measurements, enhancing the versatility of ESR experiments. ​
• Electrolytic ESR Measurements: Conducting time and voltage-dependent studies on anions like anthraquinone and p-benzoquinone, contributing to the understanding of redox processes and reaction mechanisms. ​

In summary, the JES-X3 Series ESR spectrometers by JEOL offer a harmonious blend of enhanced sensitivity, user-friendly operation, and versatile measurement capabilities. These attributes make them an invaluable asset for researchers aiming to explore the intricate properties of materials with unpaired electrons.

For further information about its features and detailed specifications, please visit the official JEOL website.