scholarly journals Design and characterization of electron beam focusing for X-ray generation in novel medical imaging architecture

2014 ◽  
Vol 21 (5) ◽  
pp. 056702 ◽  
Author(s):  
V. Bogdan Neculaes ◽  
Yun Zou ◽  
Peter Zavodszky ◽  
Louis Inzinna ◽  
Xi Zhang ◽  
...  
2009 ◽  
Vol 23 (06n07) ◽  
pp. 1910-1915 ◽  
Author(s):  
MIN TENG ◽  
XIAODONG HE ◽  
YUE SUN

SiC films with a quantity of carbon and silicon were obtained by electron beam physical vapor deposition (EB-PVD) from a sintered SiC target with different current intensity of EB. The X-ray photoelectron spectroscopy (XPS) was used for characterization of chemical bonding states of C and Si elements in SiC films in order to study the influence of current intensity of EB on the compositions in the deposited films. At the same time, the nanohardness of the deposited films was investigated.


1991 ◽  
Vol 05 (18) ◽  
pp. 1203-1211 ◽  
Author(s):  
C. ATTANASIO ◽  
L. MARITATO ◽  
A. NIGRO ◽  
S. PRISHEPA ◽  
R. SCAFURO

BSCCO thin films with T c (R = 0) higher than 80 K have been routinely prepared using a simple and reliable technique in which we completely electron beam evaporated weighted amounts of bulk pellets. The films were grown on MgO single crystal (100) substrates and showed, after an ex-situ annealing at high temperatures (840–880° C) for several hours, a strong preferential orientation with the c-axis perpendicular to the plane of the substrate. The films were characterized by Θ − 2Θ X-ray diffraction and EDS analysis and by paraconductivity and critical current measurements.


2013 ◽  
Vol 320 ◽  
pp. 150-154
Author(s):  
Hao Ren ◽  
Qun Zeng ◽  
Xi Hui Liang

Nd:YAG thin films have been prepared on Si (100) substrates by electron beam evaporation deposition. The surface morphologies, crystalline phases and optical properties of the Nd:YAG thin films were characterized by x-ray diffraction, scanning electron microscopy, photoluminescence spectroscopy, and spectrophotometer. The crystallization of Nd:YAG thin films was improved after annealing at 1100 °C for 1 hour in vacuum. Excited by a Ti:sapphire laser at 808 nm, photoluminescence spectra of Nd:YAG thin films were measured at room temperature, and the transition of4F3/24I11/2of Nd3+in YAG in the region of 1064 nm were detected by a liquid nitrogen cooled InGaAs detector array.


1988 ◽  
Vol 33-34 ◽  
pp. 661-666 ◽  
Author(s):  
Heiji Uchiike ◽  
Shuji Hirao ◽  
Kunihiko Ohishi ◽  
Yoshifumi Fukushima

2016 ◽  
Vol 23 (4) ◽  
pp. 1006-1014 ◽  
Author(s):  
Nicola Vivienne Yorke Scarlett ◽  
Peter Tyson ◽  
Darren Fraser ◽  
Sheridan Mayo ◽  
Anton Maksimenko

Synchrotron X-ray tomography has been applied to the study of titanium parts fabricated by additive manufacturing (AM). The AM method employed here was the Arcam EBM®(electron beam melting) process which uses powdered titanium alloy, Ti64 (Ti alloy with approximately 6%Al and 4%V), as the feed and an electron beam for the sintering/welding. The experiment was conducted on the Imaging and Medical Beamline of the Australian Synchrotron. Samples were chosen to examine the effect of build direction and complexity of design on the surface morphology and final dimensions of the piece.


2010 ◽  
Vol 18 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Takeshi Sakai ◽  
Satoshi Ohsawa ◽  
Noriyoshi Sakabe ◽  
Takashi Sugimura ◽  
Mitsuo Ikeda

Sign in / Sign up

Export Citation Format

Share Document