Assessment the photo-neutron contamination of IMRT and 3D-conformal techniques using Experimental measurements and Monte Carlo simulations / (Record no. 77445)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03210cam a2200349 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032549.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 200829s2019 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 | Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.12.04.Ph.D.2019.Eb.A |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Ebtesam Mohamed Mohamedy |
| 245 10 - TITLE STATEMENT | |
| Title | Assessment the photo-neutron contamination of IMRT and 3D-conformal techniques using Experimental measurements and Monte Carlo simulations / |
| Statement of responsibility, etc. | Ebtesam Mohamed Mohamedy ; Supervised Wafaa Mohamed Khalil , Nadia Lotfy Helal , Ehab Marouf Attalla |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تقييم التلوث النيوترونى لتقنيات العلاج متغير الشده وثلاثى الأبعاد باستخدام نموذج للمحاكاة والتأكد التجريبى |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Ebtesam Mohamed Mohamedy , |
| Date of publication, distribution, etc. | 2019 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 74 , (10) P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Biophysics |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | The aim of the study is to evaluate the dependence of photo-neutron production on different variables and different treatment methods (IMRT and 3DCRT techniques) using TLD (600/700) and MC simulation. The equivalent neutron doses were measured at different field sizes, depth in phantom, gantry angles and different distances along patient couch. The equivalent neutron doses were measured for 5 Prostate cancer cases using TLD (600/700).The equivalent neutron doses were measured for selected rectum case using TLD (600/700) and Geant 4 simulation. The results showed that: The measured equivalent neutron doses decreases from0.2 mSv/Gy to0.09 mSv/Gy as increases field sizes from 2x2 cm2 to 20x20 cm2. The measured equivalent neutron doses was maximum (0.15 mSv/Gy) at dmax =5 cm and decreases gradually as increases depth in phantom reaches to 0.07 mSv/Gy at 10 cm. The measured equivalent neutron doses decreases from 1.5mSv/Gy to0.02 mSv/Gy when measured at isocenter and at 100cm along the patient couch. Using 3DCRT for PTV and OARs were ranging from 0.027 to 0.39 mSv per photon Gy and for IMRT were 0.135 to 2.34 mSv per photon Gy. The measured equivalent neutron doses for rectum case were ranging from 0.04 to 0.24mSv per photon Gy, this result nearly the same calculated by MC. In conclusion the photo-neutron production is decreases as increases field size and distance from isocenter along patient couch while increases with depth in phantom up to dmax and decreases gradually as increases depth in phantom. IMRT requires longer beam-on time than 3DCRT leading to worse OARs sparing and increase the production of photo-neutrons than 3DCRT |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Intensity Modulated Radiation Therapy (IMRT ) |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | The equivalent neutron doses |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Three-dimensional conformal radio therapy (3DCRT ) |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Ehab Marouf Attalla , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nadia Lotfy Helal , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wafaa Mohamed Khalil , |
| 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 | Cai01.12.04.Ph.D.2019.Eb.A | 01010110081352000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.12.04.Ph.D.2019.Eb.A | 01020110081352000 | 22.09.2023 | CD - Rom | 81352.CD |