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Target Systems:

Standard Pivot Targets

Older Experiments:

• G0 Target
  

• Target documentation for older experiments
• Epics (logger) archives for older experiments (12/05)

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Standard Pivot Targets (Spring-07)

            

• Documents:
  
• Target operator essential responsibilities : A list of everything you are supposed to know how to do. Includes expert phone/pager numbers.
• Target operator How-tos: A brief explanation of how to do those things you're supposed to know how to do.
• Control System (GUI) Guide
• Hall C Cryo-Target Manual (old... out of date but still a useful reference for some things)
  Or download: (pdf) or (ps)
• Warmup/Cooldown procedure (for experts)  and an ESR Simplified Flow Sheet
• Target Problems (FAQ) and useful logbook entries
• Hydrogen Target Safety Assessment Document (word, pdf)
  
• EXPERTS - Names, pagers, phone numbers of who to call in what order in a crisis.
• On-Call list: The primary person (top of the call list) for spring, 2008 is:

• On-Call	Pager	Start Date	End Date
  Greg Smith	584-5405		May 1
  Peter Bosted	584-5985	May 1	May 21
  Greg Smith	584-5405	May 21	June 2
  Peter Bosted	584-5985	June 2	June 8

  
  
• Goal Parameters - Loop1=LH2, Loop2=empty, Loop3=empty . More detailed target specs are here.
<>Graphs of P_beam vs I_beam , and of the auxillary high power heater pot setting vs HPH power (same with bigger scale here ) 

• The target training talk slides  (for Gep, 2007)

• Current Limits (Operational Restrictions) on the Targets

• Hall C logbook
  
• Target archiver/logger display
• EPICS dictionary  -  A list of the target's EPICS variables, with descriptions, to help you find things with the archiver.
  
• Gas flow diagram for the Hall C target system: Best one in jpg, OR in ps:  (part 1)   and   (part 2)
• Gep Target Thickesses for:
• March -> June, 2008
• January -> February, 2008
• November-December, 2007
• October 2007
  
• Spring 07
• The target training talk slides
• Lakeshore channel assignments
• Target Thicknesses
• Shift Schedule
• SP04 (XEMPT-04)
• Spring04 (XEMPT-04) Target thicknessess, pictures, etc.
• XEMPT- summer 04 temperature calibrations & corrections
  
• Thicknesses of 1% Targets installed Jan., 2005
• SP03:
• Cell Thickness measurements for the Spring-03 expt.s
• Dummy & cell thickness measurements from D. Meekins for the Spring-03 expts. in inches.
• Thickness measurements from D. Meekins for Spring-03, in mm. (Same as above, but in mm instead of inches).
• Optics Sled (mechanical drawing)
• Useful references:
• LH2/LD2 densities and Energy loss
• Thermophysical properties:
•  of para-hydrogen at 24 psia
  
•  of deuterium at 24 psia
  
•  of helium at 1.2 atm near 15K
• Other Useful Links (JLab links)

 

The G0 Target

Experts : who to call in an emergency

Logger/Archiver: Link to the EPICS archiver of the target data logger
G0 Logbook   and the Backangle ELOG
G0 Target Preliminary Design Document
G0 Target Manuals

• README
• G0 Target How-tos
• G0 Target OSP
• G0 Target Gas Handling Users Guide
• G0 Target Control System Manual
• New 1.2 kW DCS40-30EM1 40V, 30A DC HPH power supply manual (11/05)
• The G0 Target NIM paper
  

Other G0 Target Documentation
Current Limits (Operational Restrictions) on the G0 Targets
Warmup/Cooldown procedure (for experts)  and an ESR Simplified Flow Sheet
Target Problems and FAQ and useful logbook entries
Target Beam Studies , etc. ala Silviu
Other Useful Links (JLab links)
Some cell dimensions for Louis
Some window thickness measurements
Wiring Notes
Backangle Target Thicknesses, Encoder Values, etc.
Gas Flow/Plumbing Diagram of G0 Backward in Hall C
Backangle Layout/Dimensions of target in SMS (note: we think the target is 17mm further upstream than indicated in this drawing)
Backangle Target Alignment, Survey, & Position Calibration document
Dummy Frame Drawings one and two