000			02066cam a2200349 a 4500
003			EG-GiCUC
005			20250223031104.0
008			141110s2013 ua d f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aPh.D
099			_aCai01.24.05.Ph.D.2013.Is.E
100	0		_aIslam Sayed Othman Elnasharty
245	1	0	_aEvaluation of a new fiber laser source for libs analysis / _cIslam Sayed Othman Elnasharty ; Supervised Moahamed Abdelharith , Mohamad Sabsabi , Moataza Khater
246	1	5	_aتقيم مصدر ليزر ليفي للأستطياف المستحث بالليزر
260			_aCairo : _bIslam Sayed Othman Elnasharty , _c2013
300			_a157 P. : _bcharts ; _c25cm
502			_aThesis (Ph.D.) - Cairo University - National Institute of Laser Enhanced Science - Department of Laser Applications in Environmental Metrology Photochemistry and Agriculture
520			_aThis dissertation was set to evaluate the {uFB01}ber laser, as a source of light in the {uFB01}eld of (LIBS). The study began with the diagnostics of the fiber laser-induced plasma parameters such as temperature, electron number density and temporal behavior of the emission lines for laser pulse duration ranging from 40 to 200 ns. Subsequently, by using the same pulse duration range, the evaluation of the analytical performances of this laser source was also carried out. Finally, the effect of the corresponding pulse duration range on the ablation behavior was studied through the determination the fluence thresholds for some pure metals having different thermophysical properties detection, fluence threshold
530			_aIssued also as CD
653		4	_aFiber laser
653		4	_aLimit of detection
653		4	_aPlasma
700	0		_aMoahamed Abdelharith , _e Supervisor
700	0		_aMoataza Khater , _eSupervisor
700	0		_aMohamad Sabsabi , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aAml _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c48151 _d48151