From: Robert Openshaw <openshaw@erich.triumf.ca>
Date: Tue, 19 Oct 1999 17:26:35 -0700
To: e614chambers@relay.phys.ualberta.ca
Subject: DME ageing tests - round 2

    The attached charts show 55Fe pulse height profiles of several of
the current ageing tests in progress.  At the start of this 2nd round of
tests, we first took a PH spectra (Q0=0)  of each chamber with
Argon/ethane 50:50.  We then flowed (flew?) DME thru the chambers for ~
24 hours, then switched back to ar/et and took another PH spectra
(Q1=0).

E12.EPS - urethane  from 1st round test for comparison to E13 below

E13E14.EPS -
    E13 - urethane (current test)
    E14 - Buna-N

E7E8.EPS -
    E7 - 2 Ton epoxy
    E8 - ribbon cable connectors
    (both from 1st round for comparison to E15E16 below)

E15E16.EPS -
    E15 - 2 Ton epoxy
    E16 - ribbon cable connectors

E17E18.EPS -
    E17 - Kapton Tape (used on straws)
    E18 - "scintillator" glue (low viscosity epoxy used to fill voids in
foil epoxy)


Filename: e12.eps

Filename: e13e14.eps

Filename: e7e8.eps

Filename: e15e16.eps

Filename: e17e18.eps


DME ageing tests - round 2 / Robert Openshaw

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