From this page you can watch or download images and/or animations of electron injection, storage and SR-light generation in the storage ring ASTRID.
To watch the MOV animations, you need the QuickTime player. To watch the WMV animations, you need the Windows Media Player
N.B.: If you want to download the animation(s) instead of watching them, right-click on the links below and choose 'Save target as' from the pop-up menu.
When downloading or viewing files, you have three options:
- Full version (QuickTime MOV files, 640*480 pixels)
- compressed MOV version (400*300 pixels) or
- compressed WMV version (640*480 pixels).
These animations have been developed by Coldvision Studio, www.coldvision.se
- The full animation can be watched here: Full animation (QuickTime movie, 79MB) , compressed MOV (18.5MB), compressed WMV (7.07MB)
- The first part can be watched here: First part (MOV, 34MB), compressed MOV (7.87MB), compressed WMV (2.96MB).
It shows injection of the electron beam from the 100-MeV racetrack microtron into the storage ring/synchrotron ASTRID. After injection, the coasting beam (actually bunched at 3 GHz) is bunched tightly into 14 bunches, corresponding to the radiofrequency of 105 MHz in the storage ring after which it is accelerated to the maximum energy of 580 MeV.
- The second part can be watched here: Second part (MOV, 18MB), compressed MOV (5.47MB), compressed WMV (1.82MB).
It shows emission of synchrotron radiation from the 14 circulating bunches stored at 580 MeV. Observe that the synchrotron radiation is emitted in the undulator and in the bending magnets. The synchrotron radiation has the time structure of the electron beam, and whereas most of the synchrotron radiation is absorbed in the vacuum chambers, a small part travels down the beamlines as light flashes.
- The third part can be watched here: Third part (MOV, 8.6MB), compressed MOV (2.61MB), compressed WMV (1.4MB).
It shows the light travelling down the beamline, being deflected by a mirror before being dispersed by a grating. The slit selects a specific wavelength (colour), and this radiation hits the surface of a material. Photoelectrons are emitted, and these are energyanalysed by a spectrometer.
You can also view and/or download still images from the animations above by using the thumbnail page.
Click a thumbnail to watch the image in full size (1024*768), When in full-size mode the image can be downloaded by right-clicking and choosing 'Save picture as' from the pop-up menu.
The images are in jpg format, and are between 150 and 390 kB in size.
Last Modified 30 August 2012