Argon 4s and 4p Excited States Atomic Data Applied in ARC-JET Modeling

Table 3

Main processes and their coefficients.

Processes	𝑘𝑖/𝑅𝑛𝑙	Process type
Ar(3𝑝)+e^−⇒Ar(4𝑠)+e^−	𝑘1	Exc
Ar(3𝑝)+e^−⇒Ar(4𝑝)+e^−	𝑘2	Exc
Ar(4𝑠)+e^−⇒Ar(4𝑝)+e^−	𝑘3	Exc
Ar(4𝑠)+e^−⇒Ar(3𝑝)+e^−	𝑘4	De-exc
Ar(4𝑝)+e^−⇒Ar(3𝑝)+e^−	𝑘5	De-exc
Ar(4𝑝)+e^−⇒Ar(4𝑠)+e^−	𝑘6	De-exc
Ar(3𝑝)+e^−⇒Ar^++2e^−	𝑘7	Ion
Ar(4𝑠)+e^−⇒Ar^++2e^−	𝑘8	Ion
Ar(4𝑝)+e^−⇒Ar^++2e^−	𝑘9	Ion
Ar^++e^−⇒Ar(3𝑝)+h𝜈	𝑅3𝑝	RR
Ar^++e^−⇒Ar(4𝑠)+h𝜈	𝑅4𝑠	RR
Ar^++e^−⇒Ar(4𝑝)+h𝜈	𝑅4𝑝	RR

Exc: electron collision excitation.
De-exc: electron collision de-excitation.
Ion: ionization.
RR: radiative recombination.