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EJNMMI Physics
Fig. 9 | EJNMMI Physics

Fig. 9

From: Gamma detector dead time correction using Lambert W function

Fig. 9

Window fraction (i.e., 99mTc counts/OW counts) plotted vs. open window count rate for the intrinsic measurement and the second extrinsic measurement with the NEMA scatter phantom for both 20% and 40% 99mTc energy window width. Green, intrinsic measurement 20% 99mTc energy window; blue, NEMA phantom measurement 20% 99mTc energy window; red, LEHR NEMA phantom measurement 40% 99mTc energy window. The 40% energy 99mTc window is not available for all measurements

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