In this study, the Lee code is used to compute the characteristics soft x-ray yield (Ysxr) production for

nitrogen (N2), oxygen (O2), neon (Ne), and argon (Ar) and bremsstrahlung radiation for hydrogen

(H2), deuterium (D2), and helium (He) with pressure variation in PF1000 of 2.5–2.6MAforD2. In the

calculation of characteristic soft x-ray, the corresponding temperature windows of the said gases are

set into the code at which they are ionized to their H-like and He-like levels. The focus pinch

parameters such as radius ratio (minimum radius of plasma pinch column/anode radius), ion density,

specific heat ratio, pinch energy density, self-absorption correction factor, and maximum induced

voltage are computed at the optimum pressure of each gas. The obtained pinch plasma temperature

range (1.2–2.2)×106KofH2,D2, and He is sufficiently high for fully ionized plasmas and the resulting

bremsstrahlung radiation (14 J) for He is significantly larger than forH2 (0.26 J) andD2 (0.62 J). The

optimum Ysxr of Ne(∼9314 J) at 0.51 Torr with pinch energy density (PED) (∼26×108 Jm−3) is found

to be the highest whilst for Ar(∼7 J) at 0.019 Torr with (∼1.2×108 Jm−3) is the lowest. It is found that

the radius ratio (∼0.05) of Ne is 3-fold smaller than that (∼0.16) in Ar. This enhancement of

compression in pinch of Ne increases the ion density significantly by a factor of 253 than in Ar gas.

Thus, the results show a strong correlation of plasma pinch properties with Ysxr for various gases.