00852nam a22001697a 4500040003700000082001900037100003000056245014500086260003700231300004200268500014900310500004000459500004000499502005900539546001300598650007100611  cRiphah International University   a612.014 bAMB   aAmbreen Muzaffar (13854)   aComparison study of penumbra, flatness and symmetry for high energy-photon beams, in small & large fields, with 2D ion chamber array matrix   aIslamabad b(unpublished) c2018  axiii, 37 p. b: ill. c; 30 cm. e+CD  aSubmitted in fulfillment of the requirements for the degree of Masters of philosophy in Physics to the Faculty of Basic Sciences and Humanities.  aIncludes bibliographical references  aThesis supervisor: Dr. Zafar Wazir   aThesis (M.Phil)--Riphah International University, 2018  aEnglish   aPhoton Beams vChamber array vPenumbra vFlatnessvSymmetryvFBSH