COMPASS Photo Gallery

Beam tests in the X5 area, 5 - 19 August, 1998

Dubna prototype straw chamber, HCAL2 (IHEP), muon trigger (Mainz)

Click on the picture to get a full size version!

The X5 area.
The beam enters from the right. Dubna prototype straw chamber:
active area 2400 x 1200 mm²,
diameter of straws:
inner region 6 mm
outer region 10 mm,
readout: Freiburg cards (ASD8)
plus CAMAC TDCs.
Dubna prototype straw chamber
mounted on a scanner which
allows horizontal and
vertical movements. Beam definition by
the silicon telescope (TU Munich).
HCAL2 modules from IHEP (black),
Punch-through for muon trigger
(concrete blocks and scintillators)
Mainz.

This page was last updated on August 13, 1998 by Gerhard Mallot

	The X5 area. The beam enters from the right.		Dubna prototype straw chamber: active area 2400 x 1200 mm², diameter of straws: inner region 6 mm outer region 10 mm, readout: Freiburg cards (ASD8) plus CAMAC TDCs.
	Dubna prototype straw chamber mounted on a scanner which allows horizontal and vertical movements.		Beam definition by the silicon telescope (TU Munich).
	HCAL2 modules from IHEP (black), Punch-through for muon trigger (concrete blocks and scintillators) Mainz.