In the present work we report the effect of magnetic field on the emission intensity of the neutral and singly ionized transition line of the Tin plasma in vacuum produced by the CO₂ laser. We have investigated time of flight measurement and the expansion velocity of the excited neutral and ions of the tin plasma in the absence and in the presence of the magnetic field of 0.64T in vacuum at a distance of 1 mm and 3 mm from the sample surface. The estimated values of the expansion velocities of Sn⁺ at the distance of 1 mm and 3 mm from the surface is 0.23 × 10⁶ cm/s and 0.32 × 10⁶ cm/s respectively in the field-free case, whereas in the case of the magnetic field of 0.64 T these values were found to be 0.19 × 10⁶ cm/s and 0.27 × 10⁶ cm/s respectively. It is observed in our estimated experimental result of the TOF the expansion velocity in the presence of field is considerably lower as compare to field free region.

We have also estimated the electron number density and electron temperature of the tin plasma using Stark broadened profiles of Sn⁺ transition line and Boltzmann plot method respectively. In the temporal variations, the electron temperature and the electron number density with and without magnetic field of 0.64T is estimated as (1.48–0.63) eV and (1.04–0.58) eV and (2.06 × 10¹⁶–6.7 × 10¹⁵) cm⁻³ and (1.5 × 10¹⁶–4.42 × 10¹⁵) cm⁻³ respectively at the delay of (200–1100) ns.

在当前的工作中，我们报告了磁场对由CO ₂激光器产生的真空中锡等离子体的中性和单电离跃迁线发射强度的影响。我们研究了在不存在和存在0.64T磁场的情况下，在距样品表面1 mm和3 mm的真空中的飞行时间测量以及锡等离子体的激发中性离子和离子的膨胀速度。 在无场情况下，距表面1 mm和3 mm处Sn ⁺的膨胀速度的估计值分别为0.23×10 ⁶  cm / s和0.32×10 ⁶ cm / s。在0.64 T的磁场中，这些值为0.19×10 ⁶ cm / s和0.27×10 ⁶  cm / s。在我们对TOF的估计实验结果中观察到，与无场区相比，在有场的情况下膨胀速度要低得多。

我们还分别使用Stark变迁的Sn ⁺跃迁线和Boltzmann绘图法估算了锡等离子体的电子数密度和电子温度。在时间变化中，在有和没有磁场的情况下，电子温度和电子数密度为0.64T时，估计为（1.48–0.63）eV和（1.04-0.58）eV，以及（2.06×10 ¹⁶ –6.7×10 ¹⁵）cm在（200–1100）ns的延迟下分别为⁻³和（1.5×10 ¹⁶ –4.42×10 ¹⁵）cm ^-3。