Scattered radiation effects on the performance of diagnostic nuclear medicine devices / (Record no. 64362)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02769cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223031908.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180101s2017 ua ho 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.2017.Mo.S |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Abdelnaby Abdelazeem Ghoneim |
| 245 10 - TITLE STATEMENT | |
| Title | Scattered radiation effects on the performance of diagnostic nuclear medicine devices / |
| Statement of responsibility, etc. | Mohamed Abdelnaby Abdelazeem Ghoneim ; Supervised Wael M. Elshemey , Mahmoud H. Khedr |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تأثير الإشعاع المشتت على آداء أجهزة الطب النووى التشخيصية |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Mohamed Abdelnaby Abdelazeem Ghoneim , |
| Date of publication, distribution, etc. | 2017 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 106 P. : |
| Other physical details | facsimiles , photographs ; |
| Dimensions | 25cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Biophysics |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | This work employs a point source to investigate the effects of phantom thickness and source-to-detector distance on the extrinsic sensitivity and counting efficiency of a gamma camera with a rectangular detector. Measurements are performed using 99mTc source (0.197±3.7{u00D7}10-4 GBq) and a water phantom container (as a scattering medium). The scatter fraction is determined through the analysis of the energy spectra of 99mTc for a certain energy window. Results show the direct dependence of the calculated extrinsic counting efficiency on the solid angle subtended by a point source on a rectangular detector. The increase in water thickness from 0.0 to 200 mm resulted in an increase in the scatter fraction from 0.20 to 24.12. This increase is also associated with a decrease in the extrinsic sensitivity from 121.59 to 11.15 counts/s.GBq, and a decrease in extrinsic counting efficiency from 0.039 to 0.0036%. The increase in source-to-detector distance from 0.50 to 1.10 m is accompanied by a decrease in extrinsic sensitivity from 121.59 to 115.53 counts/s.GBq and an increase in extrinsic counting efficiency from 0.039 to 0.15%. In such point source geometry, it is found that a source-to-detector distance of 0.79±0.02 m is a good compromise for an acceptable extrinsic sensitivity and a reasonable extrinsic counting efficiency. Some important differences between the present results and published measurements using a flood source are extensively discussed |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Extrinsic counting efficiency |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Gamma camera |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Scattered fraction |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mahmoud H. Khedr , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Wael M. Elshemey , |
| 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 | Samia |
| 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.2017.Mo.S | 01010110074038000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.12.04.Ph.D.2017.Mo.S | 01020110074038000 | 22.09.2023 | CD - Rom | 74038.CD |