Minutes of the high energy beam test telephone meeting - July 28, 1998

Attendants:
BNL:   Sebastian White, Naohito Saito, Yuji Goto
ORNL:  Terry Awes
CERN:  Mischa Ippolitov
Muenster: Damian Bucher

* Schedule

The ALICE group will start installation (trigger etc.) from Aug.24 or
Aug.25 morning.
After some PHOS test, PHENIX will start beam time (4 days long ?).
ALICE are planning to use their own platform with their cooling
machine.
It will be placed downstream of our platform.
There is possibility to put all three calorimeters (PbSc, PbGl and
PHOS) on the same platform to take data in turn with same beam
particle and same energy instead of dividing beam time for PHENIX and
ALICE.
This will save time to change setup of CEDAR which takes a few hours
each time.
Scheduling issue will be discussed in the ALICE group.

* Position Detector

If PHENIX and ALICE use respective platform, PHENIX have to find
another position detector. (ALICE uses their scintillator hodoscope.)
No delay line readout chamber is available at CERN. (Mischa will ask
Konrad or somebody again.)

Wire chamber will be checked at Muenster. (gas - Ar/Methane)

To summarize, there are three solution;
1. to find delay chamber or other chamber
2. to put all three calorimeters on the same platform
3. to make beam divergence small to put scintillator hodoscope far

* Setup

ALICE will set ADC at the fence and others at the counting house.
There is no patch panel at the counting house.
All cables cannot be provided at CERN. (about 70m to the counting
house, about 10-15m to the fence)
It takes about 1.5microsec to make trigger signal for the shaping.
Trigger signal is available both at the counting house and at the
fence.
Readout and control of the platform is available only at the counting
house.

For non-orthogonal incidence, crane work will be necessary.
How can we align the setup ? (0, 10, 20 degree)
Survey works will be necessary for the setup.

Analogue scope will be brought from ORNL.
HV power supply 10mA-2kV * 3 exist at CERN.
We have not found power converter 220V->110V, 30A@110 yet.

* DAQ

New DAQ (pDAQ + pstuff) is now on preparation at 902A.
Histograming is ready now on shared section to monitor it on paw.
We are checking WA98 board serial data, laser data, cosmic muon data
etc.

* Equipments from BNL
(from Edward's list - http://emcal01.rhic.bnl.gov/~emcal/README
 and Damian's list)

For PbSc
	Standalone SM
	Laser with trigger PIN and Ham. VPD and filter weel
	Power supply for HVPD
	2 LV cable from Dolly to the board
	Installed board plus a spare one
	Receiver board
	VME crate (complete)
	CAMAC crate (complete)
	NIM crate with all logic
	VME terminal
	INDY
	Tape drive
	Disk drives
	2 Probes
	Digital multimeter
	Extension cords and power strips
For PbGl
	HIVOC VME module
	Peak sensing ADC (>= 4 chan.)
	Mini-VT-box (NIM module) with inputs for 4 pin diodes
	Avalanche LED pulser
	Variable yellow LED pulser (FP1)
	TDC module for the wire chamber
For both
	3 SDM boards ? - 1 for PbSc and 1 for PbGl + 1 spare
	Cables - 70m ?
		Serial cable
		Data cable
		Twisted pair to send ecl- trigger pulse to photocell
		Signal cable to get SPD pulse back to ADC

* Equipments from ORNL

Analogue scope

* Equipments from Muenster

Blue LED pulser
NIM-Shaper module for PIN readout
Connection cable mini-VT-box <-> shaper
Connection cable shaper <-> ADC (LEMO ?)
4 connection cables PIN-diodes <-> mini-VT-box
12 LED connection cables
Power supplies for the PbGl-HV system (or get it at CERN)
DWC

* Equipments at CERN

Dolly's
HV power supply 10mA-2kV * 3
Connection cable (blue) HIVOC <-> repeater box
Repeater box
Power cable for repeater box (white)

* Major concerns

Time sharing between ALICE and PHENIX ?
Position detector ?
Power converter 220V->110V, 30A@110 ?
Longer cables ?
Platform - crane, align and survey works ?
Shipping ?