The Porter Exchange x-ray detector test chamber was removed from the Porter facility, modified, and assembled for use in Berlin.  Modifications include the incorporation of a hinged assembly for its access door so that will not need a hoist for access to the chambers inside.  A support stand was made for the detector chamber which will allow it to be rolled to each of the beamlines and then raised or lowered to the appropriate height.

The chamber is shown being packed and prepared for shipment to Berlin:
 

• Test Chamber 01
• Test Chamber 02

Test Setup

The equipment arrived at the BESSY facility on Friday, November 28, 1997 at 6:30pm. PTB personnel were there to accept the shipment, SAO personnel were on their flights from Boston to Berlin. All of the equipment arrived except for the UPS (uninterruptable power supply) for the vacuum pump system, but was expected to arrive by the end of Tuesday, the following week.  Setup for testing was completed on Wednesday, December 4, 1997.

Shipment Damage: The gas system electronics enclosure was the only item of the shipment to arrive damaged. First investigation indicates that the damage was only to the enclosure and not to the electronics.  Further investigation will take place on Tuesday of the first week.
• GSS01. The rear panel view showing both sides are bowed inwards.
• GSS02. The front panel view showing the left side caved in.
• GSS03. The bottom view showing the cutout in the bottom.
• GSS04. The closeup of one of the damaged outer corner bumpers.
Test Setup: The FPC test chamber was brought to the SX700 beamline, raised and leveled to the beamline, and then attached to the beamline.  The electronics rack, computers, and cabling were all setup so that the initial software checks could be accomplished.
• Assy 01. The FPC test chamber installed onto the SX700 beamline.
• Assy 02. The workstation, PC, and electronics rack being checked out.
• Assy 03. FPC's and their preamps installed into chamber. FPC_X2 is on top and FPC_HN is on bottom (both FPC's are behind the plate in this view, their preamps in the foreground, gas lines visible showing their installation such that the FPC's are in series).
• Assy 04. The inside of the test chamber viewed with door open, vertical and horizontal stage assemblies, FPC mount brackets attached to vertical stage.
• Assy 05. Closer view of inside the test chamber.
• Assy 06. Side view of test chamber attached to the SX700 line.
• Assy 07. Front view of chamber, gas system, pumpstations, and lap top table.
• Assy 08. Same as 07, but showing workstations and Robert Austin to the right.
• Assy 09. The elex rack and workstation setup (again).
• The CREW sitting in the beam injection waiting area ... during injections, everyone must leave the beamline area.

After beginning test on third shift, Wednesday, December 04, 1997, we ran 24 hour testing to finish up the first test week using fpc_x2 and fpc_hn on the SAO Pipe chamber to conduct tests on QE mapping, spectral response functions, gas opacity, counting rate linearity, and anode wire aging and gain uniformity. All tests, and some extras, were completed Sunday around 11 a.m. local time. Data and log files were ftp'd to /data/axaff/bradw/bessy.

We removed our chamber from the SX700 beamline.  It was replaced by the PTB reflectometer in order to perform transmission measurements on several filters, FPC windows, and the HSI uv/ion shield, as well as measure the
sizes of several small FPC apertures.  Testing should began Monday, December 8, 1997 (one day ahead of schedule).  This allowed us to finish testing by Thursday evening--PTB has requested that we not test on Friday if possible (although we
could if necessary), so that they could begin work on a complicated setup for the next user.

Mike McDermott arrived Sunday, and Robert Austin stayed on for several days.
 

December 04-07.
 

"After Dark 2"

What we do when we aren't working ... it's amazing what you can do when you haven't got much time to do it in .....

This page last updated April 07, 2000