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Department of atomic energy
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D/H Mass Spectrometer


D/H Mass Spectrometer, an import substitute, is versatile analytical instrument. It is used for the measurement of D/H (Deuterium/Hydrogen) ratio in water and hydrogen sample on routine basis. It is a compact, reliable & sensitive analytical tool. It finds applications in Heavy Water plant, in Isotope hydrology etc. It consists of sample inlet system, electron impact ion source, analyzer and faraday cup collectors. Sample inlet consists of online reduction system for liquidsamples & an inlet system for gas samples. PC based interface is provided for instrument control & sample analysis.

D/H Mass Spectrometer, an import substitute, is a very versatile analytical instrument. It is used for the measurement of D/H (Deuterium/ Hydrogen) ratio in water and hydrogen samples. It consists of sample inlet system, electron impact ion source, analyzer and faraday cup collectors. Two independent collector assemblies have been incorporated to collect H?+ and HD+ ions. It operates around a base pressure of 10-8 Torr. PC based interface is provided for instrument control & sample analysis

SALIENT FEATURE

  • It is compact, reliable and high sensitivity analytical instrument, consisting of a sample inlet system, electron impact ion source, mass analyzer, faraday cup collectors.
  • Turbo molecular pump & ion pump makes the vacuum system.
  • It can analyze water and gas samples.
  • Sample analysis is under computer control.
  • Its precision is ± 0.3 % at natural level.

APPLICATION

  • It is used as quality assurance tool in Heavy Water Plants.
  • For research & development in Heavy Water and Catalyst.
  • In isotope hydrology, for studying and interpreting the natural isotope variation in D/H in various natural waters.


The D/H Mass Spectrometer is a versatile analytical instrument. It is used for routine measurement of D/H (Deuterium/ Hydrogen) ratio in water and hydrogen sample. It consists of sample inlet system, electron impact ion source, analyzer and faraday cup collectors. The sample inlet system consists of online reduction system for water samples & an inlet system for gas samples. The electron impact ion source is designed to have high sensitivity and low H₃+ formation. The mass analyzer has a radius of 6 cm with deflection angle of 60°. Two independent collector assemblies have been incorporated to collect Hâ‚‚+ and HD+ ions. It operates around a base pressure of 10-8 Torr. The vacuum system of it consists of rotary pump, turbo molecular pump and ion pump to achieve the vacuum of 10-8 Torr. PC based interface is provided for instrument control & sample analysis.

APPLICATIONS

  • It is used as quality assurance tool in Heavy Water Plants (by the measurement of deuterium enrichment) also in research & development in Heavy Water and Catalyst.
  • It is also used in isotope hydrology for studying and interpreting the natural isotope variation in D/H in various natural waters.

SPECIFICATIONS

Range of samples:20 ppm to 10,000 ppm
Mass Range:2 & 3amu (Hâ‚‚ & HD)
Precision:± 0.3 %
Resolution:10
Sample Analysis Time:20 Minutes
Samples:Water, hydrogen gas

Ion source

Source:Electron-Impact type
Ion optics:Two independent collectors assemblies to collect Hâ‚‚+ and HD+

Mass Analyzer

Analyzer deflection angle:60°
Radius of analyzer:6 cm (Central beam describes 6 cm radius)
Field:2000 gauss

Vacuum System

Vacuum system:One turbo molecular & one ion pump
Roughing pump:Two rotary pumps

Infrastructure Required
Mechanical fabrication workshop with lathe machine, Milling machine, TIG welding, Insulation tester, access to leak testing facility.

Electronic Lab Facility for Testing Purpose

PCB assembly & instrument rack wiring facility.
Measuring instruments like precision digital multimeter & Oscilloscope.
Function Generator

Space
A 100 sq. meter room.

Raw Material
Most of the components are available within the country and some components need to be imported through local agents.

Manpower
One graduate in science, one electronics engineer, two trained technicians will be required for manufacture/production of this instrument.


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General License Fee : ₹ 300,000.00 (Three Lakh)

General Royalty : 0%