Zeeman effect spectrometer having high-speed electromagnetic swi

Details Zeeman effect spectrometer having high-speed electromagnetic swi Zeeman effect spectrometer having high-speed electromagnetic swi

1993-11-03

1996-01-16

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

With background radiation comparison

G01J 336

Patent

active

054852676

ABSTRACT:
A spectrometer using Zeeman background correction is disclosed which has a sample producer (100) for producing a cloud of atoms, an electromagnetic radiation source (102) for irradiating the atom cloud, a detector (104) for detecting the radiation after it passes through the atom cloud and an electromagnet (14) for applying a magnetic field to the atom cloud. A power supply and switching unit (106) for powering the electromagnet and switching the electromagnet on and off to create a Zeeman effect are provided. The switching unit has transistors (16-22, 40, 42, 50, 52) controlled by a control circuit (25), and the power supply includes a rectifier (10) and one or more capacitors (12, 12a, 12b). The switching time is typically on the order of 1-1.5 ms or less and the high voltage which is applied is on the order of 400-800 V.

REFERENCES:
patent: 4341470 (1982-07-01), Parker et al.

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