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Electron Spin Resonance (ESR)

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Electron Spin Resonance (ESR) at USIC

Requisition forms

Please download the requisition form, fill it in, sign it, and upload the filled copy with your booking. This requisition form is provided by the USIC office for this instrument.

Download requisition form PDF

Process: submit booking β†’ in-charge approval β†’ pay on the DU fee portal β†’ upload Order ID + receipt β†’ measurement confirmed. See the payment flowchart and user guidelines.

Booking details

Per sampleβ€”
Total costβ€”

Rates as per the revised USIC user-charges document β€” external rates include 18% GST. Per-hour instruments: enter the number of hours; per-sample instruments: number of samples.

Upload the filled & signed copy of the downloaded requisition form. Only genuine PDF files up to 5 MB are accepted.

Payment is mandatory with every booking. Pay the fee at the DU fee portal β€” fee.du.ac.in β†’ Fee Payment (Miscellaneous) β€” selecting β€œUSIC Instrumentation Fee” under the Fee dropdown. Then enter the Order ID and upload the fee receipt below β€” bookings without payment details are not accepted.

By submitting you accept the USIC user guidelines. Charges are payable in advance and non-refundable.

For any query related to the instrument
Contact: Dr. Vierandra Kumar (6305359610)

About this instrument

Electron Spin Resonance (ESR) Spectrometer

  • Make: JEOL 
  • model: JES-X320
  • Sensitivity: 5 x 109 spins/0.1 mT
  • Sample type: Powder, crystal, Liquid
  • Microwave Unit: Standard Frequency: X-band: 8.75 – 9.65 GHz,
  • Q-band: 34 – 36 GHz
  • Microwave oscillation source: Gunn diode oscillator
  • Frequency resolution: 10 kHz
  • Electromagnet: Magnetic Field Range: 1300 mT (1.3 T)
  • Resolution: 2.35 T, Magnetic Field Stability: 0.5 – 1.0 T
  • Cavity Resonator: Resonance Mode: TE011 cylindrical
  • Resonator resonant frequency: 9450 MHz
  • Spectrometer: Frequency: 100 kHz, 50 kHz, 25 kHz
  • Magnetic field sweep width: Β± 500 mT
  • Temperature dependent:
  • Low Temperature Range: Upto -160 ˚C (liquid nitrogen),
  • Upto -260 ˚C (liquid Helium)
  • High Temperature Range: Upto 500 ˚C