G0 will employ a 20 cm long liquid hydrogen target operating at a pressure of 2 atm connected to a 450 W cryogenic cooling loop. The target design incorporates a cell filled with helium gas to maintain equal radii of curvature of the entrance and exit windows. The construction of the cryo-target is the responsibility of and will be fabricated at Caltech. Caltech is also responsible for the design and construction of gas handling system which will supply gaseous hydrogen to the target cell and helium to the helium cell. The control system hardware and software will provided by U. Maryland. Caltech is responsible for construction of the transverse motion mechanism to move the target in and out of the beam path. The responsibility for design and construction of the servicing and removal system has not yet been assigned.
For the latest (December, 1998) report on the status of the target,
see the
appropriate section of the Report to PAC15.
Earlier status information can be found in the
Cost and Schedule Review Report
.
Additional information concerning details of the G0 target is
available below:
| G0 Doc. No. | |
|---|---|
| G0-98-034 |
G0 Liquid Hydrogen Target Preliminary Design Document
- C. E. Jones and E. J. Beise,
November 25, 1998 (Gnu-zipped postscript, 304 kb) |
| G0-99-002 |
Memo: Preliminary Design Review of G0 Cryotarget
- L. Cardman, January 12, 1999 (Gnu-zipped postscript, 11.3 kb) |
| G0-99-019 |
Specifications for EPICS-based Controls Software for the G0 Target
- E. Beise, Februray 26, 1999 (Obsolete) (Gnu-zipped tar archive of html text and postscript figures, 95 kb) March 7, 2000 (hypertext) |
| G0-99-024 |
Analyzing the Beam Pipe on the G0 Spectrometer Head for
its Ability to Carry the G0 Target
- L. Bartoszek, Bartoszek Engineering, May 23, 1999 (hypertext) (Gnu-zipped postscript, 91 kb) (Gnu-zipped MathCAD (version 8) file, 25 kb) |
| G0-00-007 |
G0 Superconducting Magnet to Target Interface Control Document
- C. E. Jones, S. E. Williamson,
and S. F. Pate, Updated June 2000 (Gnu-zipped postscript, 446 kb) (Gnu-zipped tar archive of LaTeX source, 392 kb) |
| G0-00-009 |
G0 Target to Computation Interface Control Document
- S. Pate, B. Beise, C. Jones, Updated May 2000 (Gnu-zipped postscript, 27.9 kb) |
| G0-00-022 |
G0 Target Service Module Specifications
- C. Jones, May 19, 2000, updated October 12, 2000 (Gnu-zipped postscript, 28.9 kb) |
| G0-01-049 |
Temporary Operational Safety Procedure (TOSP) for the G0
Target Helium Circuit Pressure Test
- G. Smith, March 30, 2001 (Portable Document Format, 2.14 Mb) (MS Word, 534 kb) |
| G0-01-050 |
Addendum to Appendix E of the Target Preliminary Design Document
(Obsolete, see G0-02-011)
- B. Beise and K. Gustafsson,
June 5, 2001 (Portable Document Format, 530 kb) (MS Word, 113 kb) |
| G0-01-051 |
Pressure Rise in Vacuum Chambers due to Rupture of He Coolant Lines
- K. Gustafsson,
June 11, 2001 (Portable Document Format, 102 kb) (Gnu-zipped Postscript, 37.8 kb) |
| G0-01-052 |
Temporary Operational Safety Procedure (TOSP) for the G0
Cryotarget Test in the JLab Test Lab
- K. Gustafsson, June 18, 2001 (Portable Document Format, 6.22 Mb) (Gnu-zipped MS Word, 1.41 Mb) |
| G0-02-011 |
Report to the G0 Cryotarget Safety Review Committee
- K. Gustafsson, February 1, 2002 (Gnu-zipped Postscript, 756 kb) |
| G0-02-012 |
Report on the G0 Target Safety and Technical Review
- J. Kilmer (editor), February 11, 2002 (Gnu-zipped MS Word, 7.23 kb) (Portable Document Format, 15.3 kb) |
| G0-02-022 |
Temporary Operational Safety Procedure (TOSP) for the Evacuation
of the G0 SMS Vacuum Vessel and Target Service Module
- G. Smith and S. Williamson, April 23, 2002 (Portable Document Format, 161 kb) (Gnu-zipped MS Word, 59.7 kb) |
| G0-02-023 |
The G0 Target User's Guide
(DRAFT)
- R. Carr,
February 4, 2002 (Portable Document Format, 268 kb) (Gnu-zipped Postscript, 111 kb) |
| G0-02-024 |
The G0 Target Controls Manual
- B. Beise, C. Galley, S. Witherspoon, S. Covrig, and A. Rauf,
January 31, 2002 (Gnu-zipped Postscript, 78.0 kb) (LaTeX Source, 42.9 kb) |
| G0-02-046 |
Temporary Operational Safety Procedure (TOSP) for the
G0 Target Neon Test
- S. Covrig, May 17, 2002 (Portable Document Format, 89.9 kb) (Gnu-zipped MS Word, 12.7 kb) |
| G0-02-047 |
Answers to Dave Kashy's List of Issues and Concerns Regarding the
G0 Target Neon Test
- S. Covrig, May 20, 2002 (Portable Document Format, 45.9 kb) (Gnu-zipped MS Word, 5.13 kb) |
| G0-02-048 |
Temporary Operational Safety Procedure (TOSP) for the
G0 Target Hydrogen "No Beam" Tests
- S. Covrig, May 17, 2002 (Portable Document Format, 112 kb) (Gnu-zipped MS Word, 18.1 kb) |
| G0-02-080 |
The G0 Target LH2 No Beam Tests
- S. Covrig, Updated November 15, 2002 (Gnu-zipped Postscript, 209 kb) (Portable Document Format, 184 kb) |
| G0-03-008 |
G0 Target Status, A Presentation at
the March 2003 G0 Collaboration Meeting
- S. Covrig, March 6, 2003 (Portable Document Format, 129 kb) (Gnu-zipped MS PowerPoint, 103 kb) |
| G0-03-050 |
The G0 Target Update, A Presentation at
the June 2003 G0 Collaboration Meeting
- S. Covrig, June 18, 2003 (Portable Document Format, 427 kb) |
| G0-03-084 |
G0 Target Update, A Presentation at
the September 2003 G0 Collaboration Meeting
- G. Smith, September 25, 2003 (Portable Document Format, 3.34 Mb) |
| G0-04-008 |
G0 Target Turnaround Work Division - R. McKeown,
September 12, 2004 (Portable Document Format, 7.23 kb) (MS Word Source, 27.1 kb) |
| G0-04-010 |
Target Modifications for G0 Back Angle, A Presentation at the June 2004 G0 Collaboration Meeting
- D. Gaskell, June 1, 2004 (Portable Document Format, 306 kb) |
| G0-04-011 |
The G0 Target Load-Lock, A Presentation at the June 2004 G0 Collaboration Meeting
- S. Williamson, June 1, 2004 (Portable Document Format, 262 kb) |
| G0-05-006 |
(Portable Document Format, 3.22 Mb) (Gnu-zipped MS PowerPoint, 2.96 Mb) |