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EJNMMI Radiopharmacy and Chemistry
Fig. 2 | EJNMMI Radiopharmacy and Chemistry

Fig. 2

From: In-target production of [11C]CH4 from a nitrogen/hydrogen gas target as a function of beam current, irradiation time, and target temperature

Fig. 2

Saturation yields, YSAT [GBq/µA], calculated from the measured second category data (Additional file 1: Table S3) as a function of target chamber temperature and beam current. Dashed lines show linear fit for YSAT(11CO2) and YSAT(11CH4) at various target chamber temperatures. The theoretical saturation yield of 11C for the given proton energy, uncorrected for the N2-H2 composition, is indicated with a horizontal dashed line. A Saturation yield of 11C-carbon dioxide, i.e., YSAT(11CO2). B Saturation yield of 11C-methane, i.e., YSAT(11CH4). The y-axis intersections of the linear fit equations (constant term k) were used to determine the constant b in Eq. 2b

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