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Minutes of Regular Hall C Meeting

June 22, 1999 @ 3:30 p.m.

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• Engineering: (Bill Vulcan)

• High Voltage Cables are in and pulled to HMS
• 50% of the boxes have been soldered in
• High Voltage power supply to the pivot, is not in yet

• Hall C will be closed Tuesday June 22, 1999 at 6:00 p.m. The 23^rd ,24^th and 25^th , the hall will be closed at 5:00 p.m.
• Cable trays for G0 data cable are finished
• Training course for Hall C will be held in the Counting House on Wednesday at 1:30p.m.

• Engineering (Paul Brindza)

• G0 transit line is out
• Pinched wires have to be re-wired for the target
• Error in the assembly figure had to be fixed

• Report from R (Chris Armstrong)

• Spectrometer angle encoder checks went well

• Only 1 quad magnet trip in 5 days
• Manual setting of HMS dipole is quicker than automatic ramping
• Superharp training will be given to undergraduates and whoever else is interested
• Target
• Jim has CMM data for new target cellblocks combine with survey info.
• Need 4 cm dummy foils, replaced on optic target

• Luminosity
• New info. from old sinusoidal raster data
• Software for new raster system in progress
• Bed post gating signal to reduce luminosity affects

• E97-006 Data (Daniela Roche)

• Gives a report on the upcoming experiment E97-006, to measure the correlated spectral function and the e,e'p reaction mechanism

• FR for July 1999 (Chen Yan)

• Gen optics task completed right now
• For HMS000 (normal tune) mode, has produced a complete data set give electron angular acceptance of 4cm, 7.5 cm and 15 cm target and 4% and 10% momentum range for 6 different angles.
• Transfer data to Madey on Monday
• For HMSR000 (reversed tune) mode, two sets of RAYTRACE setting parameters are ready for Rolf. One is point-to-point tune and another is parallel-to-point tune. Rolf should be able to convert RAYTRACE results into his COSY file.
• If high resolution is required, with slightly adjusting the quad built-in third order trim coil, we'll have fairly good resolution over the entire momentum range.
• HMSR000 and HMS000 have comparable solid angle. HMSR has much larger angular acceptance in off plane than HMS.
• The feasibility of commissioning schedule and manpower should be discussed
• Gen optics presentation is ready

• HNSS update (Liguang Tang)

• Target
• Finished HNSS split pole and foil
• Target chambers are ready
• Vacuum has been tested
• Power supply has been fixed

• Found position where the (NMR) is locking, measured B-I curves

• Gen (Dick Madey)

• Setup detectors for test experiment
• Table has been made and 3 detectors from HU are in
• Cables are ready

• Comments (Roger Carlini)

• Introduced Larry Cardman's new Deputy Dennis Skopik
• Handed out memo from Larry concerning Undergraduate Students down in the hall without supervision
• E97-006 had its Mini-Readiness Review last Friday. Main concerns were the assumed beam currents in the run plan and collaboration manpower issues