Jefferson Lab Hall C (and A)
Cryogenic Target System

 


 

Target Systems:

Standard Pivot Targets (Updated February, 2014)

Hall A target webpage

Target Training Talk


Older Experiments:

 

          QWeak Target

 

        G0 Target

 

        SP07


12 GeV Era Standard Pivot Targets

(Updated February, 2014)

 

Target Training Talk (Feb 2014)

Hall A target webpage

 

o   On-Call list:

o   Today is Tuesday, February 25, 2014

On-Call

Work

Cell

On Call Dates

(Inclusive)

Greg Smith

5405

871-4371

March 22-31, 2014

Silviu Covrig

6410

(843) 697-1753

March 14-21, 2014

JP Chen

7413

218-0722

March 11-13, 2014

Dave Meekins

5434

968-9076

 


 

Qweak Target (May, 2010)
Qweak   Hall C   JLab

.

<>

Name

Work

Pager

Cell

Home

Greg Smith

269-5405

327-5443

871-4371

565-9883

Silviu Covrig

269-6410

 284-0928 

(843) 697-1753

394-1187

Dave Meekins

269-5434

327-5491

 

874-4750

Chris Keith

269-5878

327-5527

 

 

Josh Pierce

269-5036

327-5478

 

 

Jim Dunne

269-6928

 

(662) 418-8322

 


 


 

Standard Pivot Targets (Spring-07)            

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

<>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 G0 Target


Experts : who to call in an emergency

Target Training Slides All the slides we use in the target training course.

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

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