High resolution neutron spectroscopy for helium isotopes

Author(s):  
M.S. Abdel-Wahab ◽  
H.O. Klages ◽  
G. Schmalz ◽  
B.H. Haesner ◽  
J. Kecskemeti ◽  
...  
1993 ◽  
Vol 48 (1-2) ◽  
pp. 406-414
Author(s):  
T. Springer

Abstract An introductory survey on applications of high-resolution neutron spectroscopy is presented, dealing with the motion of hydrogen in solids, namely concerning (i) random rotational motions or stationary tunneling states of NH+4-ions or CH3-groups, and (ii) diffusion of hydrogen in alloys. For the rotation of hydrogenous groups in solids, at higher temperatures rotational jumps can be found, whereas quantum states are observed by μeV-spectroscopy at temperatures below 50 K. On the other hand, hydrogen diffusion does not reveal pronounced evidence of quantum effects, except for hydrogen in a metal containing impurity atoms.


1981 ◽  
Vol 75 (8) ◽  
pp. 4003-4009 ◽  
Author(s):  
A. Heidemann ◽  
W. Press ◽  
K. J. Lushington ◽  
J. A. Morrison

2018 ◽  
Vol 31 (2) ◽  
pp. 025801 ◽  
Author(s):  
Tapan Chatterji ◽  
Michaela Zamponi ◽  
Joachim Wuttke

2014 ◽  
Vol 89 (9-10) ◽  
pp. 2184-2188 ◽  
Author(s):  
Mario Pillon ◽  
Fabrizio Andreoli ◽  
Maurizio Angelone ◽  
Alberto Milocco ◽  
Roberto Cardarelli

1988 ◽  
Vol 21 (26) ◽  
pp. L931-L937 ◽  
Author(s):  
R Osborn ◽  
A D Taylor ◽  
Z A Bowden ◽  
M A Hackett ◽  
W Hayes ◽  
...  

1960 ◽  
Vol 7 (1) ◽  
pp. 67-72 ◽  
Author(s):  
H.W. Newson ◽  
R.M. Williamson

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