scholarly journals Implementation of Main Waveguide Cavities of Electron Linear Accelerator Using Integrated and Separable Methods and Comparing Their Performance

2012 ◽  
Vol 2 (6) ◽  
pp. 163-168 ◽  
Author(s):  
Farshad Ghasemi ◽  
Freidoon Abbasi Davani ◽  
Mohammad Lamehi rashti ◽  
Mohammad Mahdi Abbasi
Author(s):  
G. King ◽  
A.J. Becker ◽  
G.W. Corris ◽  
J.R. Boyce ◽  
R.L. Bramblett

2012 ◽  
Vol 331 ◽  
pp. 41-52 ◽  
Author(s):  
Andreas Wagner ◽  
Wolfgang Anwand ◽  
Maik Butterling ◽  
Thomas E. Cowan ◽  
Fine Fiedler ◽  
...  

A new type of a positron annihilation lifetime spectroscopy (PALS) system has been set up at the superconducting electron accelerator ELBE [ at Helmholtz-Zentrum Dresden-Rossendorf. In contrast to existing source-based PALS systems, the approach described here makes use of an intense photon beam from electron bremsstrahlung which converts through pair production into positrons inside the sample under study. The article focusses on the production of intense bremsstrahlung using a superconducting electron linear accelerator, the production of positrons inside the sample under study, the efficient detector setup which allows for annihilation lifetime and Doppler-broadening spectroscopy simultaneously. Selected examples of positron annihilation spectroscopy are presented.


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