Beam quality correction, kQQ0(r), for solid‐state detectors diamond, LiF, Li2B4O7,Al2O3, and plastic scintillator are calculated as a function of distance, r, along the transverse axis of the 60Co and 192Ir brachytherapy sources using the Monte Carlo‐based EGSnrc code system. This study also includes calculation of detector‐specific phantom scatter correction, kphan(r), for solid phantoms such as PMMA, polystyrene, solid water, virtual water, plastic water, RW1, RW3, A150, and WE210. For 60Co source, kQQ0(r) is about unity and distance‐independent for diamond, plastic scintillator, Li2B4O7 and LiF detectors. For this source, kQQ0(r) decreases gradually with r for Al2O3 detector (about 6% smaller than unity at 15 cm). For 192Ir source, kQQ0(r) is about unity and distance‐independent for Li2B4O7 detector (overall variation is about 1% in the distance range of 1–15 cm). For this source, kQQ0(r) increases with r for diamond and plastic scintillator (about 6% and 8% larger than unity at 15 cm, respectively). Whereas kQQ0(r) decreases with r gradually for LiF (about 4% smaller than unity at 15 cm) and steeply for Al2O3 (about 25% smaller than unity at 15 cm). For 60Co source, solid water, virtual water, RW1, RW3, and WE210 phantoms are water‐equivalent for all the investigated solid‐state detectors. Whereas polystyrene and plastic water phantoms are water‐equivalent for diamond, plastic scintillator, Li2B4O7 and LiF detectors, but show distance‐dependent kphan(r) values for Al2O3 detector. PMMA phantom is water‐equivalent at all distances for Al2O3 detector, but shows distance‐dependent kphan(r) values for remaining detectors. A150 phantom shows distance‐dependent kphan(r) values for all the investigated detector materials. For 192Ir source, solid water, virtual water, RW3, and WE210 phantoms are water‐equivalent for diamond, plastic scintillator, Li2B4O7 and LiF detectors, but show distance‐dependent kphan(r) values for Al2O3 detector. All other phantoms show distance‐dependent kphan(r) values for all the detector materials.PACS numbers: 87.10.Rt, 87.53.Bn, 87.53.Jw