Prasad, D. N.Ayyappan, R.Kamble, L. P.Singh, J. P.Muralikrishna, L. V.Alex, M.Balagi, V.Mukhopadhyay, P. K.2010-06-292010-06-292008http://hdl.handle.net/123456789/27434584 bytestext/htmlenhigh pressure-high vacuum-high conductance piston valvegas-filled radiation detectorsvacuum pumpgas cylinderArticle