. Previous slide . Next slide . Back to first slide . View graphic version .

Еще в разделе: (Показать все результаты (>641) - xmm.vilspa.esa.es/ )

• Radiation Workshop Topics
• XMM Radiation Environment
• EPIC-pn: closed into the radiation-belts:

... Radiation mechanisms of astrophysical objects: classics today . ... S.A. Balashev, D.A. Varshalovich, A.V. Ivanchik, V.V. Klimenko , Ioffe Institute, Russian Federation . ... D.P. Barsukov, A.I. Tsygan , Ioffe Institute, Russian Federation . ... A.I. Kopylov, F.G. Kopylova , Special Astrophysical Observatory (SAO RAS), Russian Federation . ... F.G. Kopylova, A.I. Kopylov , Special Astrophysical Observatory (SAO RAS), Russian Federation . ... Slide shows and posters . ...

Еще в разделе: (Показать все результаты (>204) - www.astro.spbu.ru/ )

• Conference Proceedings | Radiation mechanisms of astrophysical objects:
• Conference poster | Radiation mechanisms of astrophysical objects: classics
• Abstract book | Radiation mechanisms of astrophysical objects: classics today

The Experiment: To find the first galaxies . Understand basic properties of star formation/galaxies ? guess how a young galaxy, or protogalaxy would appear . ... New stars very blue: will appear redder at large distances (redshift). Dust protects gas from radiation. Dust is heated and is luminous at infrared wavelengths. ... Gas in close to a group of galaxies (cluster) may become very hot and emit X-rays. Previous slide . Next slide . Back to first slide . ...

Еще в разделе: (Показать все результаты (>427) - www.mrao.cam.ac.uk/ )

... In low Earth orbit (LEO) the CCDs are subject to radiation damage from the Earth's radiation belts. ... Long term radiation damage to the CCDs from high energy protons leads to an increase in dark count rate (mainly from the creation of hot pixels), baseline shifts in the CCD amplifiers, and long term degradation of Charge Transfer Efficiency (CTE). ... Figure 4.10 is a histogram of the dark current distribution (in e- s^-1) for hot pixels. ... The majority of new hot pixels have low dark current. ...

Еще в разделе: (Показать все результаты (>2503) - www.stsci.edu/ )

• STIS CCD Detector - Living with Radiation Damage
• CTE Workshop at STScI
• The DIRTY Model. I. Monte Carlo Radiative Transfer through Dust

. Previous slide . Next slide . Back to first slide . View graphic version .

Еще в разделе: (Показать все результаты (>317) - www.mso.anu.edu.au/ )

• PPT Slide

Circling around magnetic field lines. ... The ring current . Because positive ions and negative electrons drift in opposite directions (see drawing), that motion will create an electric current that circulates clockwise around the Earth when viewed from north. ... How then can the radiation belt and ring current arise? ... Electric fields are able to push trapped particles earthward, and unlike the purely magnetic motion described earlier, an electric field can also energize them. ...

Еще в разделе: (Показать все результаты (>296) - www.iki.rssi.ru/ )

• The Radiation Belts
• Radiation Belts
• The Radiation Belt -- History

Electron bombardment radiation damage in Tektronix CCDs . ... If damage is due to a flatband voltage shift then the amount of charge that can be transferred through one damaged pixel is limited. ... The amount of spill present in the first empty pixel will depend on how many damaged pixels the signal charge is transferred through. ... Undamaged ------ 630 ke/pixel . ... CTL = charge lost / (signal charge * number of transfers) . ... charge lost - [CTL i * signal charge * number of transfers] . ...

Еще в разделе: (Показать все результаты (>235) - www.sao.ru/ )

• CMOS tutorial-radiation
• Cosmic InfraRed Background Radiation

SLAC Jan 2004 CCD Radiation Damage Studies J. Brau, O. Igonkina , N. Sinev, C. Potter (University of Oregon) January 9, 2004 Outline: · Introduction · Neutron and Electron irradiation · Study of SLD VXD3 · Measurement of the trap filling time · Conclusions O. Igonkina for U.Oregon CCD Radiation Damage Studies 1 SLAC Jan 2004 CCD The ... But is it radiation tolerant? ... The study is to be continued O. Igonkina for U.Oregon CCD Radiation Damage Studies 12 ...

Еще в разделе: (Показать все результаты (>149) - zebu.uoregon.edu/ )

• http://zebu.uoregon.edu/~uochep/talks/talks03/rad.pdf
• Lecture V.
• Radiation Dominance in the Early Universe

... Field Lines . ... Charged particles--ions and electrons--can be trapped by the Earth's magnetic field. ... A fast rotation (or "gyration") around magnetic field lines, typically thousands of times each second. ... A slow drift around the magnetic axis of the Earth, from the current field line to its neighbor, staying roughly at the same distance from the exis. ... Electrons and ions, of the energies commonly encountered in the magnetosphere, tend to circle around magnetic field lines. ...

Еще в разделе: (Показать все результаты (>442) - www.cosmos.ru/ )

• Radiation Belts
• The Radiation Belts
• The Radiation Belt -- History

11. http://www.atnf.csiro.au/projects/askap/tech_session3_RG.pdf

12. XWare > APOD

13. The Sparkle Plug-In: Features

14. Sliders ? Amateur Astronomers Association of New York

15. Горка Pilsan Playful Dino Slide - Pilsan - Pilsan Playful Dino Slide Угги

16. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BC55FD0D5-F8BB-4BEF-8282-866DC66B612C%7D

17. The AstroStat Slog Blog Archive Blackbody Radiation [Eqn]

18. Detection of polarized radiation sources with unusual spectral characteristics

19. Mechanics and Cryogenics

20. Slide 1