Touch & Damage parts of a script are broken, how do I fix?

Hello, I've got this script, and it's broken, but very weird

What the script is supposed to do is activate when you touch a part called "radar", but instead, it activates when you touch a part called "dot" (Which is placed inside of "radar") And, the damage for touching the part somehow doesn't work, which is weird

Can someone please explain what is wrong with it?

SCRIPT:

local gun = workspace.Turret.Gun
local originpoint = gun.CFrame.p
script.Parent.Radar.radar.Touched:connect(function(plr)
	
	
    if plr.Parent:IsA("Model") and plr.Parent:FindFirstChild("Humanoid") and game.Players.LocalPlayer.Character:FindFirstChild("Head") then
    script.Parent.Gun.alert:Play()
    local ignore = {script.Parent,game.Players[plr.Parent.Name]}
    local ray = Ray.new(originpoint,plr.Parent.Head.CFrame.p.Unit*100)
    local gun,position = workspace:FindPartOnRayWithIgnoreList(ray,ignore,false,true)


    local beam = Instance.new ("Part")
    beam.BrickColor = BrickColor.Red()
    beam.Material = "Neon"
    beam.Transparency = .35
    beam.Anchored = true
    beam.Locked = true
    beam.CanCollide = false
    beam.Parent = gun
    beam.Name = "Beam"


    local distance = (script.Parent.Gun.CFrame.p-position).magnitude
    local Distance = distance/8
    repeat
        beam.Size = Vector3.new(.15,.15,distance)
        beam.CFrame = CFrame.new(script.Parent.Gun.CFrame.p,position)*CFrame.new(0,0,-distance/2)
        distance = distance*2
        wait (0.01)
    until distance == Distance*2


    beam.Touched:connect(function(hit)
        if hit.Parent:IsA("Model") and hit.Parent:FindFirstChild("Humanoid") then
            local human = hit.Parent:FindFirstChild("Humanoid")
        human:TakeDamage(10^308)



      

  

    game:GetService("Debris"):AddItem(beam,.1)





end
end)

end
end)

Thanks for your time!

~TheRoofyPidgeot