It’s better than that. He seemingly can’t tell the difference between gamma rays, X-rays and neutrons, and about the only thing he’s got right about Tokamaks is the colour of the light given off (although that’s a function of the fuel, and his quoted fuel would give off a different colour - oops!).
I think he’s trying to say that “Xerum 535” is some sort of secret recipe rather than a new element, but his writing is so poor it’s hard to tell. The idea of squirting hydrocarbons and mercury into a plasma is hillarious though - the big problem we have with plasmas is not losing all the heat so fast, and conversely when we want to stop them we squirt in Argon gas. Being relatively heavy it rapidly cools the plasma and stops the reaction. Mercury and hydrocarbons are both a lot heavier, and so would stop the reaction faster. They’re so much trouble that mercury is banned outright and we spend weeks baking the machine to get rid of the minute hydrocarbon traces from fingerprints and the like.
Either way, that reaction wouldn’t produce many neutrons anyway - tokamaks only produce a lot of neutrons when you’re running them with tritium fuel gas, and that requires a working nuclear reactor to breed it to start with. Which they didn’t have. Deuterium only fusion isn’t aneutronic, but you only get neutrons when you form Helium-3. Which is 0.000137% of all reactions - not a promising start! Best guess is he read a book on fusion physics sometime, decided the Russians were too dumb to invent a tokamak and so that they must have got the idea from the Germans. He’s then tried to reverse-engineer this “German” programme from what little he knows about fusion - probably from Wiki, although even Wiki isn’t usually that bad - and made some hillarious bloopers in the process.