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A novel compact high speed x-ray streak camera (invited)a)
a)Invited paper, published as part of the Proceedings of the 17th Topical Conference on High-Temperature Plasma Diagnostics, Albuquerque, New Mexico, May 2008.
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10.1063/1.2978200
/content/aip/journal/rsi/79/10/10.1063/1.2978200
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/10/10.1063/1.2978200
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The main features of a conventional streak camera.

Image of FIG. 2.
FIG. 2.

The scheme for a PE energy swept x-ray streak camera. Photons arriving at the transmission photocathode at later times experience higher accelerating voltage, have a larger Larmor radius, and are focused at a lower point on the phosphor. Not shown is the well known property of a uniform magnetic field that it refocuses a small divergence in PEs around the Larmor orbit.

Image of FIG. 3.
FIG. 3.

The transition from a dc breakdown limit due to vacuum to a field emission limit with the transition given by the proton transit time across a gap (0.5 mm in this case).

Image of FIG. 4.
FIG. 4.

The time dependent voltage in kilovolts applied to a gap of 0.5mm, and the PE exit energy in keV as a function of the birth time. As the voltage is rising the exit energy of the electrons is higher than the gap voltage when they are “born.”

Image of FIG. 5.
FIG. 5.

The exit energy of PEs as a function of birth energy for a PE born at 60 ps, a 0.5 mm gap, and a 7 kV voltage ramping up in 100 ps. The higher birth energy electrons have a lower exit energy because they exit earlier in the ramp.

Image of FIG. 6.
FIG. 6.

The assembly drawing of the precision photocathode-extraction structure. For testing by UV laser light the photocathode is coated inside of a quartz window. The voltage ramp is introduced by the two feed cables. The electrical connection is by spring finger contacts.

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/content/aip/journal/rsi/79/10/10.1063/1.2978200
2008-10-31
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A novel compact high speed x-ray streak camera (invited)a)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/10/10.1063/1.2978200
10.1063/1.2978200
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