Abstract

Samples of Schott BG-39 and Hoya CM-500 blue-green filter glass were subjected to proton radiation to determine their acceptability for spaceflight. Initial testing done with 2.7 MeV protons showed negligible change in optical transmittance with doses as high as 5.2 × 1014 protons per sq cm. Irradiation with protons of energy up to 63 MeV caused a significant reduction in transmittance in the Schott samples at doses of 5.3 × 1012 protons per sq cm, while negligible change occurred in the Hoya samples.

© 1989 Optical Society of America

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References

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  1. K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 7 June 1982.
  2. K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 17 Dec. 1981.
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  4. K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 26 Nov. 1979.
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1984 (1)

1982 (1)

J. F. Janni, “Proton Range-Energy Tables, 1 keV–10 GeV,” At. Data Nucl. Data Tables 27, 147–339 (1982). See p. 270.
[CrossRef]

1979 (2)

1973 (1)

1971 (1)

1968 (1)

G. A. Yale, “Behavior of Optical Materials in Various Environments,” Opt. Spectra (USA) 2, No. 5, 17–23 (1968).

1966 (1)

1964 (1)

1961 (1)

Abreu, V. J.

Alfers, P. B.

Askins, C. G.

Franks, L. A.

Friebele, E. J.

Gillette, R. B.

Gingerich, M. E.

Janni, J. F.

J. F. Janni, “Proton Range-Energy Tables, 1 keV–10 GeV,” At. Data Nucl. Data Tables 27, 147–339 (1982). See p. 270.
[CrossRef]

Kenyon, B. A.

Kronenberg, S.

Lux, R. A.

Maurer, R. D.

Pellicori, S. F.

Russell, E. E.

Schiel, E. J.

Shetter, M. T.

Watts, L. A.

Wolff, C.

Yale, G. A.

G. A. Yale, “Behavior of Optical Materials in Various Environments,” Opt. Spectra (USA) 2, No. 5, 17–23 (1968).

Appl. Opt. (7)

At. Data Nucl. Data Tables (1)

J. F. Janni, “Proton Range-Energy Tables, 1 keV–10 GeV,” At. Data Nucl. Data Tables 27, 147–339 (1982). See p. 270.
[CrossRef]

J. Opt. Soc. Am. (1)

Opt. Spectra (USA) (1)

G. A. Yale, “Behavior of Optical Materials in Various Environments,” Opt. Spectra (USA) 2, No. 5, 17–23 (1968).

Other (4)

K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 7 June 1982.

K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 17 Dec. 1981.

K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 27 Feb. 1980.

K. Klaasen, Jet Propulsion Laboratory, Interoffice Memorandum, 26 Nov. 1979.

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Figures (10)

Fig. 1
Fig. 1

Transmittance of 1-mm thick samples of CM-500 glass before and after irradiation with 2.7 MeV protons. The solid curve represents the unirradiated transmittance and the transmittance after exposure to 5.2 × 1013 protons per sq cm. The dotted curve represents the transmittance after irradiation with 5.2 × 1014 protons per sq cm.

Fig. 2
Fig. 2

Transmittance of several 1-mm thick samples of BG-39 glass. The solid curve represents the transmittance of an unirradiated sample; the dashed curve represents a sample that received 5.2 × 1011 protons per sq cm at 2.7 MeV and the dash-dot curve represents the transmittance of a sample after irradiation with 5.2 × 1013 protons per sq cm at 2.7 MeV.

Fig. 3
Fig. 3

Transmittance of a 3-mm sample of BG-39 glass before and after exposure to 5.2 × 1014 protons per sq cm at 2.7 MeV. The solid curve represents the transmittance before irradiation; the dotted curve represents the transmittance after irradiation.

Fig. 4
Fig. 4

Transmittance of 6 mm thick samples of BG-39 glass from the 5.3 × 1012 and 5.2 × 1010 sample groups as well as an unirradiated sample. The solid curve represents the transmittance of the unirradiated and 5.2 × 1010 samples; the dotted curve represents the transmittance of the 5.3 × 1012 sample. See Table I for the flux-energy distributions.

Fig. 5
Fig. 5

Transmittance of a 6 mm thick sample of BG-39 from the 5.0 × 1011 sample group before and after exposure to proton radiation at Crocker Nuclear Laboratory (CNL). The solid curve represents the transmittance before irradiation; the dotted curve represents transmittance after irradiation. See Table I for the flux-energy distributions.

Fig. 6
Fig. 6

The solid curve represents the transmittance of both an unirradiated 3-mm BG-39 glass and a 3-mm BG-39 glass from the 5.2 × 1010 sample group. The dotted curve represents the transmittance of a 3-mm BG-39 glass from the 5.0 × 1011 sample group; the dash-dot curve represents the transmittance of a 3-mm thick glass of BG-39 from the 5.3 × 1012 sample group. See Table I for the flux-energy distributions.

Fig. 7
Fig. 7

Transmittance of a 3 mm thick sample of CM-500 from the 5.3 × 1012 sample group before and after irradiation at CNL. The transmittance before irradiation is represented by the solid curve; the after irradiation transmittance is represented by the dotted curve. See Table I for the flux-energy distributions.

Fig. 8
Fig. 8

Transmittance of a 6-mm thick BG-39 sample from the 5.3 × 1012 group divided by the transmittance of an unirradiated 6-mm sample of BG-39. See Table I for the flux-energy distributions.

Fig. 9
Fig. 9

The transmittance of a 3-mm thick BG-39 sample from the 5.0 × 1011 group divided by the transmittance of an unirradiated 3-mm sample of BG-39 is represented by the solid curve, while the dotted curve represents the transmittance of a 3-mm thick BG-39 sample from the 5.3 × 1012 group divided by the transmittance of an unirradiated 3-mm sample of BG-39. See Table I for the flux-energy distributions.

Fig. 10
Fig. 10

Transmittance of a 3-mm thick CM-500 sample from the 5.3 × 1012 group divided by the transmittance of an unirradiated 3-mm sample of CM-500. See Table I for the flux-energy distributions.

Tables (1)

Tables Icon

Table I Distribution of Proton Dose and Energy that the Hoya CM-500 and Schott BG-39 Samples Were Exposed to at Crocker Nuclear Laboratory

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