scholarly journals Coulomb Excitation of 142Ce and 144Nd

1989 ◽  
Vol 42 (4) ◽  
pp. 345 ◽  
Author(s):  
RH Spear ◽  
WJ Vermeer ◽  
SM Burnett ◽  
GJ Cyapong ◽  
CS Lim
Keyword(s):  
Transition Probabilities ◽  
Coulomb Excitation ◽  
Surface Barrier ◽  
Surface Barrier Detector ◽  
Electromagnetic Transition ◽  
Mixed Symmetry ◽  
Laboratory Angle ◽  
Barrier Detector ◽  
Static Quadrupole ◽  
Silicon Surface Barrier Detector

The N = 84 nuclei 142Ce and 144Nd have been Coulomb-excited using 4He, 12C and 160 projectiles. Scattered particles were detected at a mean laboratory angle of 170.6� with an annular silicon surface-barrier detector. The static quadrupole moment f the 2t state was determined for both nuclei. In addition, various electromagnetic transition probabilities involving the 2~, 2~, 1 and 4t states were measured. Taken in conjunction with previous information, the results show that the properties of 142Ce nd 144Nd are well described by the vibrational U(S) limit of IBM-2, and strongly support the proposition that the 2~ level in each nucleus is an essentially pure one d-boson mixed-symmetry state.

Si-Oberflächensperrschichtzähler in hohen Magnetfeldern bei 4,2 °K

1969 ◽  
Vol 24 (1) ◽  
pp. 154-161 ◽  
Author(s):  
P. Deimel ◽  
H. Rauch
Keyword(s):  
Magnetic Fields ◽  
Silicon Surface ◽  
Surface Barrier ◽  
Surface Barrier Detector ◽  
Recombination Probability ◽  
Barrier Detector ◽  
Severe Deterioration ◽  
Considerable Loss ◽  
Transversal Magnetic ◽  
Silicon Surface Barrier Detector

AbstractA n-type silicon surface barrier detector was examined at 4,2 °K in longitudinal and transversal magnetic fields up to 60 kOe. Particularly in transversal magnetic fields and at low reverse bias a severe deterioration of resolution and an increase of pulse rise times is effected by the altered charge collection. The increased recombination probability results in a considerable loss of charge.

scholarly journals PADC response to 0.3 - 3 MeV protons

2020 ◽  
Vol 21 (3) ◽  
pp. 281-284
Author(s):  
I. Traore ◽  
◽  
A. Ba ◽  
A. Nourreddine ◽  
Keyword(s):  
Silicon Surface ◽  
Optical Microscope ◽  
Diameter Distribution ◽  
Surface Barrier ◽  
Surface Barrier Detector ◽  
Barrier Detector ◽  
Mev Protons ◽  
Silicon Surface Barrier Detector ◽  
Track Diameter

Two types of Poly-Allyl-Diglycol Carbonate, the Neutrak and PN3 were investigated using track diameter distribution induced by the monoenergetic protons with energies in the range of 0.3 to 3 MeV. The energies and intensities were controlled by a silicon surface barrier detector and a nickel scattered foil placed in a 4 MV Van der Graaf accelerator. After different etching times, the etch track-sizes were scanned and measured with the optical microscope. PN3 and Neutrak track diameter responses to protons were measured, plotted, and discussed as a function of energy.

Pulse height defect of fission products in a silicon surface barrier detector

1977 ◽  
Vol 140 (1) ◽  
pp. 189-191 ◽  
Author(s):  
H. Wohlfarth ◽  
W. Lang ◽  
H. Dann ◽  
H.-G. Clerc ◽  
K.-H. Schmidt ◽  
...  
Keyword(s):  
Silicon Surface ◽  
Pulse Height ◽  
Fission Products ◽  
Surface Barrier ◽  
Surface Barrier Detector ◽  
Barrier Detector ◽  
Silicon Surface Barrier Detector
Sign in / Sign up

Export Citation Format

Share Document