Author/Authors :
O.W. and Duerdoth، نويسنده , , I.P. and Freestone، نويسنده , , Neville J. and Lumb، نويسنده , , Jeffrey N. and Snow، نويسنده , , S. and Thompson، نويسنده , , R.J.، نويسنده ,
Abstract :
Accelerated ageing tests were performed on four test chambers using high intensity 8 keV X-rays. The effects of varying the following chamber parameters were investigated: strip metal (aluminium, gold), substrate type (Schott S8900, Desag D263) and gas mixture (ArDME, NeDME). After initial poor ageing results from an MSGC fabricated with aluminium strips on an S8900 substrate, chambers consistently withstood total deposited charge values in excess of 100 mC/cm, with no significant loss of gain.
