scholarly journals Many-Particle Cooperative Scattering of X-Rays in the Two-Crystal Spectrometer

1959 ◽  
Vol 3 (3) ◽  
pp. 131-132
Author(s):  
William E. Dibble
Keyword(s):  
X Rays ◽  
Crystal Spectrometer

Crystal spectrometer for measurements of pionic X-rays

1985 ◽  
Vol 238 (2-3) ◽  
pp. 365-380 ◽  
Author(s):  
W. Beer ◽  
K. Bos ◽  
G. De Chambrier ◽  
K.L. Giovanetti ◽  
P.F.A. Goudsmit ◽  
...  
Keyword(s):  
X Rays ◽  
Crystal Spectrometer

scholarly journals Development of X-ray streak camera electronics at AWRE

1986 ◽  
Vol 4 (1) ◽  
pp. 145-156 ◽  
Author(s):  
M. C. Jackson ◽  
R. D. Long ◽  
D. Lee ◽  
N. J. Freeman
Keyword(s):  
Streak Camera ◽  
Sweep Rate ◽  
Bragg Diffraction ◽  
X Rays ◽  
Crystal Spectrometer ◽  
One Dimensional ◽  
X Ray ◽  
Ramp Generator ◽  
Laser Facility ◽  
User Facility

The paper reviews a number of X-ray streak cameras developed at AWRE. These cameras are used to provide temporal and one-dimensional spatial or spectral information on X-rays emitted from laser produced plasmas. Two of these cameras have been designed to be combined with other diagnostic instrumentation; one with a Wolter X-ray microscope (×22 magnification) and the other with a Bragg diffraction crystal spectrometer. This latter instrument provides a few eV spectral resolution and ∼15 ps temporal resolution; a typical experimental application at the AWRE HELEN laser facility will be described. The paper describes the circuitry of the bipolar avalanche transistor ramp generator used to drive the streak plates of the cameras. Improvements to this include: (a) increasing the fastest streak rate to ∼10 ps mm−1 by a distributed capacitance network across each of the bipolar stacks of transistors, and (b) reducing the trigger jitter to approximately ±10 ps by the use of a new mix of transistors in the stack and a Raytheon RS 3500 avalanche transistor. Additional improvements have now been added. These include a ‘half-scan’ user facility to aid initial camera timing and direct switching to select the sweep rate of the camera.

A double focusing crystal spectrometer for low energy X-rays

1992 ◽  
Vol 311 (1-2) ◽  
pp. 240-248 ◽  
Author(s):  
W. Beer ◽  
M. Bogdan ◽  
J.F. Gilot ◽  
P.F.A. Goudsmit ◽  
H.J. Leisi ◽  
...  
Keyword(s):  
Low Energy ◽  
X Rays ◽  
Crystal Spectrometer ◽  
Double Focusing

Observations from the Hinotori mission

1991 ◽  
Vol 336 (1643) ◽  
pp. 339-347 ◽  
Keyword(s):  
Solar Flares ◽  
Bragg Diffraction ◽  
High Dispersion ◽  
X Rays ◽  
Crystal Spectrometer ◽  
Quartz Crystals ◽  
X Ray ◽  
X Ray Imaging ◽  
Imaging Telescope ◽  
First Time

The satellite Hinotori was launched in 1981 by the Institute of Space and Astronautical Science of Japan. Two major experiments on board the Hinotori satellite were a hard X-ray imaging telescope with modulation collimators, and a high dispersion soft X-ray crystal spectrometer utilizing the Bragg diffraction of X-rays on quartz crystals. These two instruments have revealed for the first time that solar flares show varying characteristics depending on the environment of flaring regions, and that flares produce plasmas as hot as 3-4 x 10 7 K.

Sign in / Sign up

Export Citation Format

Share Document