scholarly journals Mass selection in laser-plasma ion accelerator on nanostructured surfaces

2017 ◽  
Vol 24 (1) ◽  
pp. 010703 ◽  
Author(s):  
Malay Dalui ◽  
M. Kundu ◽  
Subhrangsu Sarkar ◽  
Sheroy Tata ◽  
John Pasley ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Mass Selection ◽  
Nanostructured Surfaces ◽  
Ion Accelerator

MeV quasi-mono-energetic proton beam created by a combination of a laser-plasma ion accelerator and synchronous rf cavity

2008 ◽  
Author(s):  
M. Ikegami ◽  
S. Nakamura ◽  
Y. Iwashita ◽  
T. Shirai ◽  
H. Souda ◽  
...  
Keyword(s):  
Proton Beam ◽  
Laser Plasma ◽  
Energetic Proton ◽  
Rf Cavity ◽  
Ion Accelerator

Ultraviolet Absorption of Refractory Elements by a Dual Laser Plasma Method

1988 ◽  
Vol 102 ◽  
pp. 243-246
Author(s):  
J.T. Costello ◽  
W.G. Lynam ◽  
P.K. Carroll
Keyword(s):  
Absorption Spectra ◽  
Laser Plasma ◽  
Optical Pulse ◽  
Ionic Species ◽  
Neutral Species ◽  
Plasma Method ◽  
Plasma Technique ◽  
Refractory Elements ◽  
Delay Times ◽  
Dual Laser

AbstractThe dual laser-produced plasma technique for the study of ionic absorption spectra has been developed by the use of two Q-switched ruby lasers to enable independent generation of the absorbing and back-lighting plasmas. Optical pulse handling is used in the coupling cicuits to enable reproducible pulse delays from 250 nsec. to 10 msec, to be achieved. At delay times > 700 nsec. spectra of essentially pure neutral species are observed. The technique is valuable, not only for obtaining the neutral spectra of highly refractory and/or corrosive materials but also for studying behaviour of ionic species as a function of time. Typical spectra are shown in Fig. 1.

Comparing Genetic Variation within Red Winter Wheat Populations with and without Image-Based Optical Sorter Selection

2019 ◽  
Vol 9 (2) ◽  
pp. 266-277
Author(s):  
Hussein M. Khaeim ◽  
Anthony Clark ◽  
Tom Pearson ◽  
Dr. David Van Sanford
Keyword(s):  
Genetic Variation ◽  
Fusarium Head Blight ◽  
Heading Date ◽  
Fusarium Head Blight Resistance ◽  
Gibberella Zeae ◽  
Mass Selection ◽  
Head Blight ◽  
Red Winter Wheat ◽  
Two Populations ◽  
Head Scab

Head scab is historically a devastating disease affecting not just all classes of wheat but also barley and other small grains around the world. Fusarium head blight (FHB), or head scab, is caused most often by Fusarium graminearum (Schwabe), (sexual stage – Gibberella zeae) although several Fusarium spp. can cause the disease. This study was conducted to determine the effect of mass selection for FHB resistance using an image-based optical sorter. lines were derived from the C0 and C2 of two populations to compare genetic variation within populations with and without sorter selection. Our overall hypothesis is that sorting grain results in improved Fusarium head blight resistance. Both of the used wheat derived line populations have genetic variation, and population 1 has more than population 17. They are significantly different from each other for fusarium damged kernel (FDK), deoxynivalenol (DON), and other FHB traits. Although both populations are suitable to be grown for bulks, population 1 seems better since it has more genetic variation as well as lower FDK and DON, and earlier heading date. Lines within each population were significantly different and some lines in each population had significantly lower FDK and DON after selection using an optical sorter. Some lines had significant reduction in both FDK and DON, and some others had either FDK or DON reduction. Lines of population 1 that had significant reduction, were more numerous than in population 17, and FDK and DON reduction were greater.

Ablation Process of Silica Glass Induced by Laser Plasma Soft X-ray Irradiation

2009 ◽  
Vol 129 (4) ◽  
pp. 595-600
Author(s):  
Tetsuya Makimura ◽  
Takashige Fujimori ◽  
Shuichi Torii ◽  
Hiroyuki Niino ◽  
Kouichi Murakami
Keyword(s):  
Laser Plasma ◽  
Silica Glass ◽  
Ablation Process ◽  
X Ray

2D effect during the propagation of schock wave induced by laser plasma : Application for laser adherence test (LASAT)

2005 ◽  
Author(s):  
Laurent Berthe ◽  
Cyril Bolis ◽  
Michel Boustie ◽  
Michel Arrigoni ◽  
Sophie Barradas ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Adherence Test ◽  
Wave Induced

Analysis of spectral and spatial characteristics of tin laser plasma

2010 ◽  
Vol 28 (0) ◽  
pp. 129-134
Author(s):  
Л. В. Месарош ◽  
М. П. Чучман ◽  
І. Е. Качер
Keyword(s):  
Laser Plasma ◽  
Spatial Characteristics
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