Abstract

This paper describes the design of a two-component grazing-incidence mirror system for use with a grazing-incidence spectrometer in order to record spatially resolved solar spectra in the 150–850-Å region. Photoelectric measurements are presented of the point spread function and reflectivity of the mirror system at discrete wavelengths in the extreme ultraviolet.

© 1974 Optical Society of America

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References

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  1. C. R. Negus, Space Sci. Rev. 13, 668 (1972).
    [CrossRef]
  2. J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).
  3. J. E. Mack, J. R. Stehn, B. Edlén, J. Opt. Soc. Am. 22, 245 (1932).
    [CrossRef]
  4. J. H. Underwood, W. S. Muney, Sol. Phys. 1, 129 (1967).
    [CrossRef]
  5. R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
    [CrossRef]
  6. C. R. Negus, W. M. Glencross, Nature, 220, 48 (1968).
    [CrossRef]
  7. H. Wolter, Ann. Phys. (Leipz.), 10, 94 (1952).
    [CrossRef]
  8. J. B. Schroeder, R. G. Klimasewski, Appl. Opt. 7, 1921 (1968).
    [CrossRef] [PubMed]
  9. R. W. Dietz, J. M. Bennett, Appl. Opt. 6, 1275 (1967).
    [CrossRef] [PubMed]
  10. A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).
  11. A. F. Timothy, J. G. Timothy, A. P. Willmore, Appl. Opt. 6, 1319 (1967).
    [CrossRef] [PubMed]
  12. W. R. Hunter, D. W. Angel, R. Tousey, Appl. Opt. 4, 891 (1965).
    [CrossRef]

1972 (1)

C. R. Negus, Space Sci. Rev. 13, 668 (1972).
[CrossRef]

1969 (1)

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

1968 (2)

1967 (3)

1965 (1)

1964 (1)

A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).

1952 (1)

H. Wolter, Ann. Phys. (Leipz.), 10, 94 (1952).
[CrossRef]

1932 (1)

Angel, D. W.

Bennett, J. M.

Dietz, R. W.

Edlén, B.

Ershov, O. A.

A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).

Firth, J. G.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Freeman, F. F.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Gabriel, A. H.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Giacconi, R.

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

Glencross, W. M.

C. R. Negus, W. M. Glencross, Nature, 220, 48 (1968).
[CrossRef]

Hunter, W. R.

Jones, B. B.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Jordan, C.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Klimasewski, R. G.

Lukirskii, A. P.

A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).

Mack, J. E.

Muney, W. S.

J. H. Underwood, W. S. Muney, Sol. Phys. 1, 129 (1967).
[CrossRef]

Negus, C. R.

C. R. Negus, Space Sci. Rev. 13, 668 (1972).
[CrossRef]

C. R. Negus, W. M. Glencross, Nature, 220, 48 (1968).
[CrossRef]

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Reidy, W. P.

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

Savinov, E. P.

A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).

Schroeder, J. B.

Shenton, D. B.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Shepelev, Y. F.

A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).

Stehn, J. R.

Timothy, A. F.

Timothy, J. G.

Tousey, R.

Turner, R. F.

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

Underwood, J. H.

J. H. Underwood, W. S. Muney, Sol. Phys. 1, 129 (1967).
[CrossRef]

Vaiana, G. S.

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

VanSpreybroeck, L. P.

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

Willmore, A. P.

Wolter, H.

H. Wolter, Ann. Phys. (Leipz.), 10, 94 (1952).
[CrossRef]

Zehnpfennig, T. F.

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

Ann. Phys. (Leipz.) (1)

H. Wolter, Ann. Phys. (Leipz.), 10, 94 (1952).
[CrossRef]

Appl. Opt. (4)

J. Opt. Soc. Am. (1)

Nature (1)

C. R. Negus, W. M. Glencross, Nature, 220, 48 (1968).
[CrossRef]

Opt. Spectrosc. (1)

A. P. Lukirskii, E. P. Savinov, O. A. Ershov, Y. F. Shepelev, Opt. Spectrosc. 16, 168 (1964).

Sol. Phys. (1)

J. H. Underwood, W. S. Muney, Sol. Phys. 1, 129 (1967).
[CrossRef]

Space Sci. Rev. (2)

R. Giacconi, W. P. Reidy, G. S. Vaiana, L. P. VanSpreybroeck, T. F. Zehnpfennig, Space Sci. Rev. 9, 3 (1969).
[CrossRef]

C. R. Negus, Space Sci. Rev. 13, 668 (1972).
[CrossRef]

Other (1)

J. G. Firth, F. F. Freeman, A. H. Gabriel, B. B. Jones, C. Jordan, C. R. Negus, D. B. Shenton, R. F. Turner. To be published in Mon. Not. R. Astron. Soc. (1974).

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Figures (12)

Fig. 1
Fig. 1

Schematic diagram of the grazing-incidence mirror system and the spectrometer used to obtain spatially resolved extreme uv spectra of the sun.

Fig. 2
Fig. 2

The paraboloidal and hyperboloidal mirror system.

Fig. 3
Fig. 3

This figure shows the 14 mirror systems during the smoothing process. (Courtesy of C. Pataky, IC Optical Systems, London).

Fig. 4
Fig. 4

Computed spot diagrams for 16 rays incident at various off-axial angles. In this figure, the xy plane is the focal plane.

Fig. 5
Fig. 5

Image sizes, based on ray tracing, for off-axis angles lying in the xz plane (i.e., θy = 0). In this figure, the xy plane is the focal plane.

Fig. 6
Fig. 6

Diagram of equipment used for measuring the mirror performance in the extreme uv.

Fig. 7
Fig. 7

Point spread function of a mirror section at 304 Å.

Fig. 8
Fig. 8

Point spread function of a mirror section at 584 Å.

Fig. 9
Fig. 9

Point spread function of a mirror section at 740 Å.

Fig. 10
Fig. 10

Point spread function of a mirror section at 5460 Å.

Fig. 11
Fig. 11

Point spread function of a mirror section at 5460 Å, when the incident beam lies in the yz plane and is inclined at 10 min of arc to the optical axis.

Fig. 12
Fig. 12

Intensity distribution in the far wings of the point spread function measured in the direction of the x axis (curve A) and in the direction of the y axis (curve B). The radiation was predominantly line emission at 584 Å.

Tables (2)

Tables Icon

Table I Source Conditions Used for uv Spread Function Measurements and the Resulting Count Rate

Tables Icon

Table II Measured Reflectivity of Mirror Systems

Equations (8)

Equations on this page are rendered with MathJax. Learn more.

x 2 + y 2 = 4 b ( z + c + b )
z 2 a 2 - x 2 + y 2 c 2 - a 2 = 1 ,
r = i - 2 ( n τ i ) n ,
w τ A w = d ,
( - a 2 0 0 0 - a 2 0 0 0 c 2 - a 2 )
d = a 2 ( c 2 - a 2 ) .
w = w 1 + s r 1 ,
s 1 = { r 1 τ A w 1 - [ ( r 1 τ A w 1 ) 2 - ( r 1 τ A r 1 ) ( w 1 τ A w 1 - d ) ] 1 / 2 } / ( r 1 τ A r 1 ) .

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