Muon production depth (MPD) of shower is measured from time structure of muons at observation level.
MPD’ dependence on the Xmax and 5001153&_mathId=si4.gif&_user=111111111&_pii=S1384107615001153&_rdoc=1&_issn=13841076&md5=e9f4ef40b616154153cadda0d49a8d7a" title="Click to view the MathML source">Xmaxμ, and so primary mass of cosmic ray is investigated.
A new method for calculating MPD is presented.
Ability of MPD as a mass discriminating parameter between primaries have been investigated.