Data sheets for MWPC detectors

This page was written by Dr. Helmut Weick, 9^th Feb. 2006, contact h.weick(at)gsi.de,  Impressum

MW11

type/ serial no.:   
nomenclature:     TS3DG2T
date:  2005 
window material: Fe
window thickness: 2*150 μm = 2 * 118 mg/cm²
sealing: soldered Al ring
sealing: Cu
delay: 2mm = 4ns
connections: ?
remarks:   2 air pressure cylinders on the sides, 90Sr source implemented, external pre amps +6V/-12V,
                works well, also with source!

MW21

type/ serial no.:   
nomenclature:     TS3DG5T
date:    11.11.2003
window material: Ti
window thickness: 2*100 μm = 2*45 mg/cm²
sealing: O-ring
sealing: Cu
delay: 2mm = 4ns
connections: XL = A5, XR = A4, YO = A2, YU = A3, Anode = A1, P = A6 (as of 29.11.2003 but must have been changed since then)
remarks:   air pressure cylinder upstream, 90Sr source implemented, external pre amps +6V/-12V
                needs very high voltage, no signals seen with source.

MW22

type/ serial no.:    BMD03/22
nomenclature:     TS3DG7T
date:    08.02.1999 ??
window material: Ti
window thickness: 2*100 μm = 2*45 mg/cm²
sealing: O-ring
sealing: Cu
delay: 2mm = 4ns
connections:
remarks:   Air pressure cylinder downstream, 90Sr source implemented, external pre amps +6V/-12V
                works well, signals with source weaker!

MW31

type/ serial no.:    BMD02/12
nomenclature:     TS4DG3T
date:    2004
window material: Ti
window thickness: 2*100 μm = 2*45 mg/cm²
sealing: O-ring
sealing: Cu
delay: 2mm = 4ns
connections:
remarks:   Air pressure cylinder downstream, 90Sr source implemented, external pre amps +6V/-12V
                works well, also with source!

MW41

type/ serial no.:    ---
nomenclature:     HFSDG2T
date:    15.12.2003
window material: Ti
window thickness: 2*100 μm = 2*45 mg/cm²
sealing: O-ring
sealing: Cu
delay: 2mm = 4ns
connections: XL = A3, XR = A2, YO = A4, YU = A5, A = A1, P = A6
remarks:   Air pressure cylinder downstream, 90Sr source implemented, external pre amps +6V/-12V
                needs very high voltage, no signal with source even pulser signal is weak.

MW41b (RISING)

type/ serial no.:    BMD03 /
nomenclature:     HFSDG3T
date:    07.10.2003
window material: kapton
window thickness: 2*25 μm = 2 * 3.55 mg/cm²
sealing: O-ring
sealing: ---
delay: 2mm = 4ns
connections: XL = , XR = , YO = , YU = , Anode = A
remarks:  no source built in, no pulser entrance, cannot be moved, ext. pre amps +6V/-12V

MW42

type/ serial no.:    BMD03 /
nomenclature:     HFSDG3T
date:    07.10.2003
window material: kapton
window thickness: 2*25 μm = 2 * 3.55 mg/cm²
sealing: O-ring
sealing: ---
delay: 2mm = 4ns
connections: XL = , XR = , YO = , YU = , Anode = A
remarks:  no source built in, no pulser entrance, cannot be moved, ext. pre amps +6V/-12V

MW51

type/ serial no.:    ???
nomenclature:     TS5DG1T
date:    30.06.1995
window material: Ti
window thickness: 2*100 μm = 2*45 mg/cm²
sealing: O-ring
sealing: Cu
delay: 2mm = 4ns
connections: A = A1, XL = A2, XR = A3, YO = A4, YU = A5, P = A6
remarks:    air pressure cylinder downstream, 90Sr source implemented, internal preamp +12V/-12V

MW71

type/ serial no.:    BMD03
nomenclature:     TS7DG1T
date:    13.03.1995
window material: Fe
window thickness: 2*150 μm = 236 mg/cm²
sealing: soldered Al-ring
sealing: Cu
delay: 2mm = 4ns
connections: XL=xi, XR=xa, YO=yi, YU=ya, A and P other feedthrough
remarks:   air pressure cylinder downstream, 90Sr source implemented, internal preamp +12V/-12V

MW81

type/ serial no.:    BMD03
nomenclature:     TH4DG4T
date:    13.03.1995
window material: Fe
window thickness: 2*150 μm = 2*118 mg/cm²
sealing: soldered Al-ring
sealing: Cu
delay: 2mm = 4ns
connections: XL=xa, XR=xi, YO=ya, YU=yi, A and P other feedthrough
remarks:   Caution! Detector is mounted upside down, direction of signals and gas in/out is changed, internal preamp -12V/+12V

MW82

type/ serial no.:    BMD02/01
nomenclature:     TH4DGAT
date:    30.06.1995
window material: Fe
window thickness: 2*150 μm = 2*118 mg/cm²
sealing: soldered Al-ring
sealing: Cu
delay: 1 mm = 4ns
connections: XL=xi, XR=xa, YO=yi, YU=ya, A and P other feedthrough
remarks:   air pressure cylinder along the beam downstream, internal preamp -12V/+12V