A spectroscopic study of the plasma produced by laser interaction with molybdenum and molybdenum alloys / (Record no. 71981)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03243cam a2200349 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032301.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 190515s2018 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.12.20.M.Sc.2018.Da.S |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Dalia Abdrabou Saad Abdrabou |
| 245 12 - TITLE STATEMENT | |
| Title | A spectroscopic study of the plasma produced by laser interaction with molybdenum and molybdenum alloys / |
| Statement of responsibility, etc. | Dalia Abdrabou Saad Abdrabou ; Supervised Th. M. Elsherbini , Mohamed Atta Kheder , Ali Hussein |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | الدراسات الطيفية للبلازما الناتجة من تفاعل الليزرمع الموليبدنيوم وسبائك الموليبدنيوم |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Dalia Abdrabou Saad Abdrabou , |
| Date of publication, distribution, etc. | 2018 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 86 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The spectral emission from plasmas of pure Mo, Mo-Ni-Cr alloys and Li-Cu alloys following irradiation by different Nd: YAG laser beams were investigated. The study was done with the laser beam at its first harmonic (1064 nm), 206 mJ, 7 ns duration pulse, repetition rate 10 Hz (Type Q- switched Nd:YAG laser at National Institute of Laser Enhanced Science, Cairo University) and the second harmonic (532 nm ), 300 mJ, 2 ns duration pulse and repetition rate 10 Hz (Type Quantal Brilliant Q-switched Nd:YAG laser at Philipps Universitat Marburg, Germany) in open air at atmospheric pressure. The radiation emitted from the target in the local thermodynamic equilibrium (LTE) was analyzed and the temperature of the plasma was calculated by the Boltzmann plot method. The electron number density (Ne) was determined from the Stark broadening of the emitted spectral line. The comparison of the electron densities at different neutral molybdenum lines (465.5, 498, 517and 550 nm) with those from hydrogen HÜ-line (656.3 nm) showed good agreement. The study included also the variation of the electron densities and electron temperatures with the delay time, the laser fluence and the distances from the target surface. The aim of the work is to check the self-absorption and to correct for the intensity of the spectral lines and hence to improve the accuracy of the electron temperature and the electron density results. It was found that the neutral molybdenum lines suffer from self-absorption and hence a correction for self-absorption was done. The corrected temperatures against self-absorption were measured at different delay times ranging from 2 to 5 os. The electron density and the electron temperature were also measured for Mo-Ni-Cr alloys and Li-Cu alloys at different laser fluencies and were compared with the results from pure Mo targets |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Molybdenum |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Molybdenum alloys |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Plasma produced |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ali Hussein , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Atta Kheder , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Th. M. Elsherbini , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Shimaa |
| Reviser | Cataloger |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.12.20.M.Sc.2018.Da.S | 01010110078131000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.12.20.M.Sc.2018.Da.S | 01020110078131000 | 22.09.2023 | CD - Rom | 78131.CD |