Skip to main content Accessibility help
×
Home

Absorption Spectra of Light Ions in the Extreme Ultraviolet

  • E. Jannitti (a1), P. Nicolosi (a2), F. Pinzhong (a2) and G. Tondello (a2)

Extract

We have used the method of two laser produced plasmas (Jannitti et al. 1984a) to measure the absorption spectra of the ions Be++ (Jannitti et al. 1984b), Be+ (Jannitti et al. 1984c) and B+ in the grazing incidence and normal incidence region. Both discrete and continua transitions have been measured and values of the photoionization cross sections are derived.

The experimental set up referring to the normal incidence investigation is shown in Fig. 1. A laser beam of 10 J of energy and 15 ns (FWHM) duration is split in two parts and generates two plasmas: one on target T of high atomic number (Cu) used as a background continuum emitting source and a second on target A for producing the absorbing species to be studied. For the latter a sphero-cylindrical lens is used producing a focal spot 100 µm wide and up to 10 mm long. The continuum radiation produced on a target tilted 45° both with respect to the laser beam and to the axis of observation was collected by a toroidal mirror whose radii of curvature, R = 640 mm in the plane of incidence and ρ = 530 mm in the plane perpendicular to the former are such to compensate the astigmatism of the 2 m radius grating.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Absorption Spectra of Light Ions in the Extreme Ultraviolet
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Absorption Spectra of Light Ions in the Extreme Ultraviolet
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Absorption Spectra of Light Ions in the Extreme Ultraviolet
      Available formats
      ×

Copyright

References

Hide All
Jannitti, E., Nicolosi, P. and Tondello, G. Physica, 124C, 139, 1984a.
Jannitti, E., Nicolosi, P. and Tondello, G. Opt. Commun., 50, 225, 1984b.
Jannitti, E., Mazzoni, M., Nicolosi, P., Tondello, G. and Yongchang, W., submitted to J.O.S.A. part B, 1984c.
Markiewicz, E., McEachran, R.P. and Cohen, M. Phys. Scripta, 23, 828, 1981.
Ōlme, A. Phys. Scripta, 1, 256, 1970.

Absorption Spectra of Light Ions in the Extreme Ultraviolet

  • E. Jannitti (a1), P. Nicolosi (a2), F. Pinzhong (a2) and G. Tondello (a2)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed