CAT Chat Minutes

February 16, 2004

 

General Information
Machine Stats - R. Klaffky:
  Delivered beam:   364.96 hrs.
   Percentage of scheduled time:   98.89
   Downtime during period:   4.10 hrs.
   Mean time between faults:   72.99 hrs.

Faults:

# 14   02/11 08:00   to   02/14 00:38    64.64  

S33EPS Vacuum Fault [VAC]

0.89 Fault reset, refill, resume top-up

# 15   02/14 01:31   To   02/15 14:31    37.00  

Gate valve closure [CTL]

0.48 Gate valve opened, refill, resume top-up

# 16   02/15 15:00   to   02/16 11:26    20.43  

Zone C MPEOB trip [PS]

1.51 S20-21 tunnel MPEOB strobe short, refill, top-up

# 17   02/16 12:56   to   02/16 14:04     1.14  

Fill Ongoing

0.00

Beamline Downtime: Summary period 2/06-12/2003

Number

Date

Time

Description

Downtime

Group

Resolution

000341

2/7/04

04:15

CC2 tripped, closing PS1 and PS2.

0:45

SI/Beamline

Call to FEEPS personnel to document and reset.

000342

2/7/04

20:38

BLEPS trip while user was not present

13:50

Beamline

Call to beamline personnel for reset.

000343

2/8/04

18:14

Recurring BLEPS trips

1:05

Beamline

Refilled chiller; BLEPS trips stopped.

ESAF Form - B. Glagola:   According to statistics on ESAFs submitted to the APS from June 2003 to the present, approximately 40% of the Users have submitted ESAFs with notice of less that seven days.   In addition, roughly 11% of the ESAFs have been submitted the day of posting.   Please remind your CAT/Beamline members and General Users that ESAFs should be submitted at least seven days prior to the scheduled start of the experiment.   Additional time is required for higher levels of risk and for safety protocols new to the APS.   If circumstances do not allow for the full seven days for review, the APS will consider the request for expedited review on a case-by-case basis.   Examples of hazards that may require more than seven days for review are (but not limited to ):   radioactive samples, biohazard samples, human tissue/material samples, and equipment that is new to the APS.

Rad Samples:   Please encourage Users to supply all information asked and as early as possible.   By doing this, the review is accomplished quicker, preventing delays.  

Also note, when radioactive samples are on the beamline, they must be attended at all times or secured in the station.   This practice must   be used when experimenters are gone for fairly long periods of time (e.g., longer than required for visiting the restroom).