Abstract

Doubly refracting prisms are used to convert an ordinary Ebert monochromator into a duochromator adapted to measuring small wavelength shifts in a spectral line. The instrument has the advantages of simplicity, good time resolution, high luminosity, and geometrically identical channels. An example of its use is given.

© 1965 Optical Society of America

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References

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  1. P. Giacomo, P. Jacquinot, J. Phys. Radium, 13, 59 (1952).
    [CrossRef]
  2. J. W. Brault, thesis, Princeton University (1962).
  3. A. B. Berezin, A. N. Zaidel, G. M. Malyshev, Zh. Tech. Fiz. 33, 291 (1963); Soviet Phys.—Tech. Phys. 8, 213 (1964).
  4. J. G. Hirschberg, Princeton Univ., Plasma Physics Lab. Rept. MATT Q-21, 322 (1964).
  5. R. W. Wood, Physical Optics (Macmillan, New York, 1934), 3rd ed., p. 370.
  6. Methods of Experimental Physics, E. Bleuler, R. O. Huxby, eds. (Academic, New York, 1964), Chap. 1.
  7. K. Bol, Phys. Fluids 7, 1955 (1964).
    [CrossRef]

1964 (1)

K. Bol, Phys. Fluids 7, 1955 (1964).
[CrossRef]

1963 (1)

A. B. Berezin, A. N. Zaidel, G. M. Malyshev, Zh. Tech. Fiz. 33, 291 (1963); Soviet Phys.—Tech. Phys. 8, 213 (1964).

1952 (1)

P. Giacomo, P. Jacquinot, J. Phys. Radium, 13, 59 (1952).
[CrossRef]

Berezin, A. B.

A. B. Berezin, A. N. Zaidel, G. M. Malyshev, Zh. Tech. Fiz. 33, 291 (1963); Soviet Phys.—Tech. Phys. 8, 213 (1964).

Bol, K.

K. Bol, Phys. Fluids 7, 1955 (1964).
[CrossRef]

Brault, J. W.

J. W. Brault, thesis, Princeton University (1962).

Giacomo, P.

P. Giacomo, P. Jacquinot, J. Phys. Radium, 13, 59 (1952).
[CrossRef]

Hirschberg, J. G.

J. G. Hirschberg, Princeton Univ., Plasma Physics Lab. Rept. MATT Q-21, 322 (1964).

Jacquinot, P.

P. Giacomo, P. Jacquinot, J. Phys. Radium, 13, 59 (1952).
[CrossRef]

Malyshev, G. M.

A. B. Berezin, A. N. Zaidel, G. M. Malyshev, Zh. Tech. Fiz. 33, 291 (1963); Soviet Phys.—Tech. Phys. 8, 213 (1964).

Wood, R. W.

R. W. Wood, Physical Optics (Macmillan, New York, 1934), 3rd ed., p. 370.

Zaidel, A. N.

A. B. Berezin, A. N. Zaidel, G. M. Malyshev, Zh. Tech. Fiz. 33, 291 (1963); Soviet Phys.—Tech. Phys. 8, 213 (1964).

J. Phys. Radium (1)

P. Giacomo, P. Jacquinot, J. Phys. Radium, 13, 59 (1952).
[CrossRef]

Phys. Fluids (1)

K. Bol, Phys. Fluids 7, 1955 (1964).
[CrossRef]

Zh. Tech. Fiz. (1)

A. B. Berezin, A. N. Zaidel, G. M. Malyshev, Zh. Tech. Fiz. 33, 291 (1963); Soviet Phys.—Tech. Phys. 8, 213 (1964).

Other (4)

J. G. Hirschberg, Princeton Univ., Plasma Physics Lab. Rept. MATT Q-21, 322 (1964).

R. W. Wood, Physical Optics (Macmillan, New York, 1934), 3rd ed., p. 370.

Methods of Experimental Physics, E. Bleuler, R. O. Huxby, eds. (Academic, New York, 1964), Chap. 1.

J. W. Brault, thesis, Princeton University (1962).

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Figures (4)

Fig. 1
Fig. 1

Polarization duochromator, showing general arrangement.

Fig. 2
Fig. 2

Composite plates, showing passage of the two spectral bands, separated by δλ, through the slit. Each is plane-polarized at right angles to the other.

Fig. 3
Fig. 3

Bands passed by the two channels, separated by δλ. The sum and difference signals are also shown.

Fig. 4
Fig. 4

Ion motion in the Etude stellarator as a function of distance from the plasma center. Velocities are in units of 105 cm/sec.

Equations (5)

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tan r / tan r = μ 0 / μ e ,
d d λ ( T i ) max = ± T 0 t ( 8 ln 2 e ) ½ .
Δ λ A ( T 2 - T 1 ) / ( T 1 + T 2 ) ,
A = t ( 8 ln 2 ) - ½ 0.42 t .
σ 0.42 ( T 1 + T 2 ) - ½ ,

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