From: Althouse, William [wea@SLAC.Stanford.EDU]
Sent: Sunday, March 09, 2003 18:29
Subject: VDG tests and I&T

TO:   LAT IPO
FROM:	William Althouse, LAT Project Manager
	Peter Michelson, LAT Principal Investigator

SUBJ:	Van de Graaf tests of LAT Engineering Model


The I&T team has proposed to explore the response of the EM tracker 
and calorimeter using a VDG-generated photon beam. We have decided 
to authorize this R&D work with the following main objectives:

1. to exercise analysis tools and methods for use during CU 
particle tests and LAT integration; and
2. to explore the functionality of the EM.

Concerns have been expressed that this work will divert already 
thin resources from the critical path of assembling, testing, 
calibrating, delivering and supporting the LAT. The decision to 
authorize this R&D activity has been made with the following 
understandings:

* the infrastructure to perform this R&D work is largely in place

* the work will be carried out with mostly "off-project" manpower 
and resources

* the work will be conducted within the scope of the current I&T 
workplan and schedule in the PMCS

* preparatory work for LAT fabrication, integration and test will
have higher priority than the R&D effort

* the work and results will not be represented as necessary for 
the success of the LAT project

* proposed VDG tests of the LAT CU and LAT flight unit are not 
authorized at this time; the I&T Manager will keep the IPO informed 
of progress in the R&D effort so that such testing can be considered 
if the R&D results warrant it


Regards,

Peter and Bill