Aston’s Mass Spectrograph.pdf

Astons mass spectrograph and its working with easy explanation.

1. Aston’s Mass Spectrograph

2. Contents:
1.
Introduction
2. Principle
3. Working
4. Derivation 5. Advantages
6. limitations
7. References

3. Introduction:

4. Principle :

5. Working :
Thestreamofpositiveionsisrenderedintoafinebeambypassingit
betweentwonarrowslitsS1andS2.
Thisbeamenterstheelectricfieldofstrength(E)betweenmetalplates
P1andP2.Duetoactionoftheelectricfieldallpositiveionshavingthe
samevalueofspecificcharge(q+/M)arenotonlydeflectedbyanangle
??????butarealsodispersedbyanangled??????duetotheirdifferentvelocities.

7. Continue…..
ThebeamisthenallowedtopassthroughslitS3andenteramagnetic
fieldofstrengthBarrangedperpendiculartotheelectricfieldsoasto
deflectthebeamintheoppositedirectionandconvergeittoasingle
pointFonaphotographicplate.Themagneticfielddeviatesthebeam
throughanangle∅andreconvergesthembyanangled∅.

8. Working :

9. Derivation:

14. ▪
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15. Advantages:

16. Limitations :
•The mass scale is not linear.

17. References :
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18. THANK
YOU …..