US X-calibration Results Page

US X-calibration Results Page Modules 869 and 881 produced at UCSB exhibited high cmn due to micro-discharge effects. After pulling many wire bonds in the micro-discharge region, the cmn was removed. Both pieces then had multiple PA-sensor and sensor-sensor opens, nearest neighbor and next-to-nearest neighbor shorts, and pinholes added to both modules. The modules was then tested at both sites as a x-calibration of our ARCS stands.

Module 869

Module 869 has the following faults:
        Channels 24-36 have a 2 sensor open (noise on neighbor due to high current)
	Channel 66 Pinhole
	Channel 87 Pinhole
	Channels 99,100 2 sensor open
	Channel 213 1 sensor open
	Channel 216 Pinhole
	Channels 233,235 Shorted
	Channels 264,265 Shorted
	Channel 324 Pinhole
	Channels 340,341 Shorted
	Channel 358 Pinhole
	Channel 410 2 sensor open
	Channel 471 2 sensor open
	Channel 476 1 sensor open
	Channel 477 2 sensor open
	Channel 491,493 Shorted

All faults found and identified correctly other than the 340-341 short.
  Channel 341 is marked as failing multiple tests, but 340 has fairly regular
 responses except noise is slightly high.

Summaries of test results for UCSB and FNAL

IV curve

Module 881

Module 881 has the following faults:
	Channel 40 Pinhole
	Channels 90-100 2 sensor opens
	Channel 146 Pinhole
	Channel 173 1 sensor open
	Channels 187,189 Shorted
	Channels 274-276 2 sensor open
	Channel 286 Pinhole
	Channels 292,293 Shorted
	Channel 318-319 1 sensor open
	Channel 406 1 sensor open
	Channel 434-444 2 sensor opens
	Channel 482 Pinhole

All faults found and identified correctly.  After testing at UCSB channels
434-436 and 442-444 pulled to improve performance around micro-discharge area,
but was not re-tested prior to shipping to FNAL.

Summaries of test results for UCSB and FNAL

Last modified: Friday July 4 2003

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