Drift Chamber Safety Systems and Procedures

[Training Requirements] [Hazard Analyses] [Procedures] [Tables] [System Documentation] [Gas System Drawings] [Chiller System Drawings] [Other Documents]

DCH Group AHAs and JHAM

Safety

JHAM or Hazard Analysis Source Date/Version
Area Hazard Analysis for DCH Systems work PDF 2007-07-18
Area Hazard Analysis for DCH Lab Area PDF 2007-07-18
JHAM for DCH Chiller work PDF 2007-07-18
JHAM for DCH electronics module replacement PDF 2007-07-18
EWP for DCH electronics module testing - LV on PDF 2007-07-18
JHAM for DCH low-voltage power supply testing Text 2007-07-18
JHAM for DCH Calibration test stand Bld 084 Rm B231A PDF 2007-07-18
JHAM for DCH Vent Procedure - for repair PDF 2007-07-18

Procedures

Each procedure below incorporates Job Hazard Analysis and Mitigation (JHAM) directly, rather than as separate dcouments.

Procedure Source Date/Version
What to do if there is a DCh gas alarm HTML
What to do if there is a DCh chiller alarm HTML
What to do before a long term shutdown PDF 2007-07-18
Back from a long term shutdown. What to do? HTML 2007-07-18
Replacement of the DCH Chiller pump PDF 2007-07-18
Purging and drying the chiller PDF 2007-07-18
Recovering From a Gas Alarm PDF 2007-07-18
Gas System Alarm Checklist PDF 2007-07-18
Gas System Chiller Alarm Checklist PDF 2007-07-18
Nanoautomate Certification Procedure PDF 2007-07-18
Lock-and-Tag: Drift Chamber Electronics Power Supply PDF 2007-07-18
Lock Procedure: Drift Chamber High Voltage Supply PDF 2007-07-18

 

Maintenance & Inspection

Description Source Date/Version
Daily Checklist PDF 1998-10-15
Chiller Checklist PDF 2007-12-04
Gas System Checklist PDF 2007-12-04
Isobutane Tank Record PDF 1999-4-21
Isobutane Bottle Record PDF 2004-09-01
Inspection and Calibration of DCH HAD Sensors PDF 2007-07-18
Calibration of HAD Sensor in Return Line PDF 2007-07-18
Calibration of the Isobutane Analyzer PDF 2007-07-18
Testing a New Bottle of Isobutane PDF 2007-07-18
Testing the Drift Chamber for leaks PDF 2007-07-18
Replacing Dungs Pressure Regulator PDF 2007-10-09
Drift Chamber Chiller - Care and Feeding PDF 2008-04-23

 

Operational State Transitions

Description Source Date/Version
Initial Checkout (set system to rest mode) PDF 2007-07-18
Running Mode to Rest (He:Iso) PDF 2007-07-18
Purging Drift Chamber    
Rest (He:Iso) to Rest (Helium) PDF 2007-09-05
Rest (O2 Present) to Rest (Helium) PDF 2007-07-18
Rest (Helium) to Rest (air) (includes filling chamber with air for repairs) PDF 2007-07-18
Rest (Helium) to 1 Atmosphere - For repair PDF 2007-07-18
Restarting Drift Chamber    
Rest (Helium) to Rest (He:Iso) PDF 2007-07-18
Rest (He:Iso) to Running Mode (He:Iso) PDF 2007-07-18
Drift Chamber to Cold Stand By    
DCH Electonics shut down PDF 2008-08-07
DCH Gas shut down with air purge PDF 2008-08-07
DCH Gas shut down no air purge needed PDF 2008-09-05

 

Tables

Description Source Date/Version
Normal gas system operating points PDF
Safe ranges of gas system sensors PDF 2000-10-2
Gas system alarm conditions PDF 1999-4-21
Nanoautomate inputs and outputs PDF 1999-4-21
SIAM inputs and outputs PDF 2003-8-22

 

System Documentation

Chapter Description Source Date/Version
Chapter 1 Changes to gas system design since September 1998 PDF 1999-4-7
Chapter 2 Responses to HEEC preoperational approval action items PDF 1999-4-7
Chapter 3 Design of the gas system PDF 1999-4-9
Gas system drawing PDF 1999-4-9
Chapter 4 Gas system operation and maintenance PDF 1999-4-9
Chapter 5 Gas system alarms and alarm handler (nanoauomate) PDF 2000-10-2
Nanoautomate program certification PDF 1999-4-20
Gas system alarm checklist PDF 2006-12-12
Chapter 6 Chiller-electronics cooling safety PDF 1999-4-7
Checklist for cooling system testing PDF 2003-08-20
Chapter 7 SIAMs PDF 2003-8-22
Chapter 8 Annunciator alarms PDF 1999-4-7
What to do if there is a gas system alarm HTML
What to do if there is a chiller alarm HTML
Chapter 9 Access to drift chamber electronics: confined space PDF 1999-4-7
Access checklist: permit required confined space PDF 1999-4-7
Access checklist: confined space permit not required PDF 1999-4-7
Chapter 10 Electrical safety PDF 1999-4-7
Lock and tag for LV power supply PDF 1999-4-1
Lock off for HV supply PDF 1999-4-1

Gas System Drawings

Description Source Version Date
Gas System drawing PDF R 2007-10-09
Gas System flow in running mode PDF R 2004-09-01
Gas System flow in rest mode PDF R 2004-09-01
Gas System flow in He purge mode PDF R 2004-09-01
Gas System flow in He-Iso purge mode PDF R 2004-09-01

Chiller System Drawings

Description Source Version Date
Chiller Plumbing PDF R 2005-01-27
Chiller Electrical PDF R 2005-11-04

Other Documents

Description Source Date/Version
HEEC preoperational approval PDF 1998-9-23
Presentation to HEEC on June 15, 1998 PDF 1998-6-15
Cover Letter for HEEC review of April 19, 1999 PDF 1999-4-12
Letter requesting modification of operations procedures for HAD 9 and 10 PDF 2000-8-7
Letter informing HEEC of change to flow switches to monitor N2 bulkhead flow PDF 2000-10-2

Original sources are available for internal use

For comments, questions or changes to this page contact Karl Bouldin mailb2.gif (2499 bytes)