Modeling of the Radial Heat Flow and Cooling Processes in a Deep Ultraviolet Cu⁺ Ne-CuBr Laser

Table 1

Related parameters of the theoretical calculation.

Parameter	Value	Description	Condition	Reference
𝑄1	1000 W	Effective input electric power		[5, 6]
𝑙𝑎	0.86 m	Length of the active zone		[5, 6]
𝑞0	54.6 Wcm^-3	constant		[5, 6]
𝑞𝑙	1162.8 W/m	Electric power per unit length		[5, 6]
𝜆0	0.0010029	Specific coefficient in 𝜆𝑔, Equations (3.1), (3.2)		[20]
m	0.6817	Power coefficient for neon in 𝜆𝑔, Equations (3.1), (3.2)
𝜆1	2.08 W/mK	Thermal conductivity of the ceramic tube	𝑇=800/1100 K	[22]
𝜆2	1.96 W/mK	Thermal conductivity of the quartz tube	𝑇=800/1100 K	[22]
𝜆3	1.78 W/mK	Thermal conductivity of the thermal insulation	𝑇=800/1100 K	[22]
𝜀	0.72	Integral emissivity of the Zr oxide insulation		[20, 22]
c	5.67 Wm^-2K^-4	Black body radiation coefficient		[23]
𝑇air	300 K	Temperature of the air
𝜆air	0.0251 W/mK	Thermal conductivity of the air	𝑇air=300 K	[22, 23]
𝜐air	15.7×10^−6 m^2/s	Kinematical viscosity of the air	𝑇air=300 K	[22, 23]
𝛽air	3.14×10^−3 K^-1	Coefficient of cubical heat expansion of the air	𝑇air=300 K	[22, 23]
g	9.80665 ms^-2	Gravitational acceleration		[23]
v	20 m/s	Velocity of the moving fluid