Superfocusing and zero-degree focusing in planar channeling of protons in a thin silicon crystal

Author(s):  
M. Ćosić ◽  
N. Nešković ◽  
S. Petrović
1987 ◽  
Vol 140 (1) ◽  
pp. K13-K17
Author(s):  
V. I. Gridnev ◽  
V. G. Khlabutin ◽  
E. I. Rozum ◽  
S. A. Vorobiev

1971 ◽  
Vol 30 (3) ◽  
pp. 806-810 ◽  
Author(s):  
Tetsuji Nishikawa ◽  
Shiro Suzuki ◽  
Tsuneaki Tsuru ◽  
Kuninori Endo ◽  
Takeshi Katayama ◽  
...  

2004 ◽  
Vol 70 (3) ◽  
Author(s):  
F. Barrué ◽  
M. Chevallier ◽  
D. Dauvergne ◽  
R. Kirsch ◽  
J.-C. Poizat ◽  
...  

Author(s):  
B.N. Jensen ◽  
S.P. Møller ◽  
E. Uggerhøj ◽  
T. Worm ◽  
H.W. Atherton ◽  
...  

1996 ◽  
Vol 67 (9) ◽  
pp. 3350-3350 ◽  
Author(s):  
C. S. Rogers ◽  
D. M. Mills ◽  
P. B. Fernandez ◽  
G. S. Knapp ◽  
M. Wulff ◽  
...  

1996 ◽  
Author(s):  
Carey S. Rogers ◽  
Dennis M. Mills ◽  
Wah Keat Lee ◽  
Patricia B. Fernandez ◽  
Timothy Graber

Author(s):  
W. Scandale ◽  
F. Cerutti ◽  
L. S. Esposito ◽  
M. Garattini ◽  
S. Gilardoni ◽  
...  

AbstractThe rate of inelastic nuclear interactions in a short bent silicon crystal was precisely measured for the first time using a 180 GeV/c positive hadron beam produced in the North Experimental Area of the CERN SPS. An angular asymmetry dependence on the crystal orientation in the vicinity of the planar channeling minimum has been observed. For the inspected crystal, this probability is about $$\sim 20\%$$∼20% larger than in the amorphous case because of the atomic density increase along the particle trajectories in the angular range of volume reflection, whose dimension is determined by the crystal bending angle. Instead, for the opposite angular orientation with respect to the planar channeling, there is a smaller probability excess of $$\sim 4\%$$∼4%.


2020 ◽  
Vol 80 (7) ◽  
Author(s):  
S. V. Trofymenko ◽  
I. V. Kyryllin

Abstract The ionization loss spectra of high-energy negatively charged particles which move in the planar channeling mode in a silicon crystal are studied with the use of numerical simulation. The case when the crystal thickness is on the order of the dechanneling length $$l_d$$ld is considered. It is shown that in this case the shape of the spectrum noticeably depends on $$l_d$$ld. The evolution of various characteristic parameters of the spectrum with the change of $$l_d$$ld is investigated. A method of the experimental determination of $$l_d$$ld on the basis of the measurement of the ionization loss spectrum is proposed.


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