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References

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  1. G. R. Harrison, “Some future possibilities of spectrographic analysis,” Conference on Spectroscopy and Its Applications, Cambridge, Massachusetts (1940).
  2. O. S. Duffendack and W. E. Morris, J. Opt. Soc. Am. 32, 8–24 (1942).
    [CrossRef]
  3. D. H. Rank, R. J. Pfister, and P. D. Coleman, J. Opt. Soc. Am. 32, 390–396 (1942).
    [CrossRef]
  4. E. A. Boettner and G. P. Brewington, Phys. Rev. 64, 45 (1943).

1943 (1)

E. A. Boettner and G. P. Brewington, Phys. Rev. 64, 45 (1943).

1942 (2)

Boettner, E. A.

E. A. Boettner and G. P. Brewington, Phys. Rev. 64, 45 (1943).

Brewington, G. P.

E. A. Boettner and G. P. Brewington, Phys. Rev. 64, 45 (1943).

Coleman, P. D.

Duffendack, O. S.

Harrison, G. R.

G. R. Harrison, “Some future possibilities of spectrographic analysis,” Conference on Spectroscopy and Its Applications, Cambridge, Massachusetts (1940).

Morris, W. E.

Pfister, R. J.

Rank, D. H.

J. Opt. Soc. Am. (2)

Phys. Rev. (1)

E. A. Boettner and G. P. Brewington, Phys. Rev. 64, 45 (1943).

Other (1)

G. R. Harrison, “Some future possibilities of spectrographic analysis,” Conference on Spectroscopy and Its Applications, Cambridge, Massachusetts (1940).

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Figures (9)

Fig. 1
Fig. 1

Spectral sensitivity of the RCA 931 and the C-7045 electron multiplier photo-tubes.

Fig. 2
Fig. 2

Complete circuit using two electron multiplier photo-tubes connected in parallel with the rectifier tube and connected into a bridge to measure the ratio of output.

Fig. 3
Fig. 3

Photo-tube housings.

Fig. 4
Fig. 4

Variation of output ratio (galvanometer deflection) of tubes with arc intensity, when located on 3968A Ca and 5390A Na lines of 25 percent sodium hydroxide burned in high voltage a.c. arc.

Fig. 5
Fig. 5

A typical calibration curve.

Fig. 6
Fig. 6

The calibration curve of aluminum in 25 percent sodium hydroxide.

Fig. 7
Fig. 7

The calibration of aluminum in Dowmetal.

Fig. 8
Fig. 8

Calibration of galvanometer deflection for determination of aluminum in Dowmetal.

Fig. 9
Fig. 9

Calibration of zinc in Dowmetal.