HT7700 Transmission Electron Microscope

TM3030Plus Scanning Electron Microscope

Manufactured by Hitachi Ltd, Japan

With Power backup, computing and Imaging facilities

Charges per sample/type of analysis:


EM sample observation: Rs 1000per sample

EM usage: Rs 5000 per hr



EM sample observation: Rs 2000 per sample

EM usage: Rs 10000 per hr

Dr. M. Krishna Reddy, Head, Division of Plant protection, Email:, Phone +91-80-23086100 Extn: 340/343


15 to 120,000x
Signal select Observation mode
5 kV/15 kV, Back Scattered electrons / Secondary Electron or Mix (30 % BSE: 70% SE) detector With Conductor/ Standard/ Charge-up Reduction modes

Maximum sample size 70 mm diameter.
Auto start, Auto focus, Auto brightness/contrast
Image Size:640x480 pixels, 1,280x960 pixels as BMP, TIFF, JPEG
Auto Micron marker
Turbomolecular pump
Image output in CD/DVD

Highlights of importance and applications of instruments:

The Transmission Electron microscope can image viruses and other plant pathogens. It can also image metallic nano particles. upto 300000 times primary magnification This Variable Pressure Scanning Electron Microscope can be used to image structure of bio materials upto 60000 times primary magnification

Parameters/analysis that can be analysed in the instrument::

Sample dimensions, Size distribution

User instructions for sample preparation:
  1. As the Instrument has Variable Pressure Detector, the samples need to be stuck on 2 sided conducting adhesive copper tape on an aluminium stub. If needed a carbon coat can be done using the Vaccum evaporator to increase controst. Staining using Phospho Tungstic Acid neds to be done for higher magnifications. The imaging can be done immediately.
Parameters that can be analyzed on the instrument/facility:

Nano / Miro structure, morphological