ANSWERS WITH SOLUTIONS 2024
RoentgenMdiscoveredMx-raysMwhileMworkingMwithMaM_____Mtube?M-MANSWERMCrookes
AnM"electronMcloud"MsurroundingMtheMfilamentMofMtheMcathodeMisMreferredMtoMasMaM-
MANSWERMSpaceMcharge
FreeMelectronsMofMX-rayMproductionMcomeMfromMtheM-MANSWERMFilament
TheMcreationMofMtheMspaceMchargeMinMtheMX-rayMtubeMproduces:M-MANSWERMthermionicMemission
TheMmajorityMofMphotonsMinMtheMX-rayMbeamMareMcreatedMbyMwhichMprocess?M-
MANSWERMBremsstrahlungMinteractions
MoreMthanM99%MofMtheMenergyMofMtheMelectronMstreamMisMconvertedMinto:M-MANSWERMheat
theMhigh-speedMrotationM(10,000Mrpm)MofMtheManodeMenablesM-
MANSWERMGreaterMdissipationMofMheatMfromMhighMtechnicalMfactors
TheMdegreeMofMangulationMofMtheMx-rayMtubeMtargetMwillMdetermineMthe:M-
MANSWERMsizeMofMtheMactualMandMeffectiveMfocalMspot
AMdual-focusMX-rayMtubeMhas:
1:MTwoMfilamentsM
2:MTwoMfocalMspotMsizes
3:MTwoManodesM-MANSWERM1MandM2
TheManodeMheelMeffectMisMaMphenomenonMofMX-rayMproductionMthatMresultsMin:M-
MANSWERMUnevenMdistributionMofMradiationMwithinMtheMx-rayMfield
, TheMpenetratingMpowerMofMtheMX-rayMbeamMisMcontrolledMbyMvaryingMtheM-
MANSWERMPeakMkilovoltageM(kVp)
TheMrateMflowMofMcurrentMflowMacrossMtheMX-rayMtubeMisMmeasuredMinM-MANSWERMmA
DoublingMtheMmAMwillMresultMinM
1:MincreasedMpatientMdose
2:MtwiceMasMmanyMphotonsMinMtheMX-rayMbeam
3:MincreasedMradiographicMdensityM-MANSWERM1,M2,MandM3
TheMunitMusedMtoMindicateMtheMtotalMquantityMofMX-rayMexposeMisM-MANSWERMMillionsampere-
secondsM(mAs)
TheMdeviceMforMremovingMlong-wavelengthMradiationMfromMtheMprimaryMX-rayMbeamMisMtheM-
MANSWERMFilter
X-
rayMequipmentMcapableMofMproducingM70MkVpMorMmoreMisMrequiredMtoMhaveMtotalMfiltrationMofMatMleast:M
-MANSWERM2.5MmmMAlMequiv
TheMpurposeMofMrotatingMtheManodeMofMtheMX-rayMtubeMisMtoM-
MANSWERMIncreaseMtheMheatMcapacityMofMtheManode
ImageMsharpnessMisMdeterminedMbyMtheM-MANSWERMSizeMofMtheMeffectiveMfocalMspot
AboveM70MkVp,MwhatMpercentageMofMphotonsMisMcreatedMbyMtheMbremsstrahlungMprocess?M-
MANSWERM85%
TheMamountMdetailMseenMinMtheMX-rayMimageMisMreferredMtoMasM-MANSWERMspatialMresolution