CAT Chat Minutes

July 19, 2004

 

General Information
Machine Stats
            Delivered beam:   1127
            Percentage of scheduled time:   98.53
            Downtime during period:   16.8 hrs.
            Meantime between faults (MTBF):   51.21 hrs.

Faults:

#31 07/13 16:00 to 7/14 12:37 20.62 DP-IOC DSP Event 0.75 Beam lost due to Data Pool IOC problem, refill
#32 07/14 13:33 to 07/16 10:56 45.56 FE EPS trip (33ID) [SI] 0.50 Human error, trip reset, refill, resume top-up.
#33 07/16 11:25 to 07/16 15:39 4.22 2-ID RAD Trip [UES] 0.39 Spurious Radiation Monitor Trip, refill, top-up.

Beamtime Downtime Summary by APS Groups, 07/12/2004 to 07/19/2004:

DIN

Date

Beamline

Status

Duration

Group

Description

Resolution

429

07/12/04

31-ID

Open

20 min

ASD-VAC

User reported FE trip, this has been an intermittent problem. Went to SR mezzanine to open BIV after checking vacuum levels.

Fault reset per standing order. ASD-VAC will investigate causes of trips during next shutdown.

430

07/12/04

24-ID

Open

2 hr 56 min

ASD-SI

C station door will not open. PSS on-call tech troubleshooting the problem.

431

07/13/04

18-ID

Closed

20 min

ASD-VAC

BP ( Elena ) from 18-ID reported #67 fault PS2_NOSWITCH-S. Followed Standing Orders & reset fault - it tripped again with the same fault. Reset Serious fault again.

Reset faults per Standing Order. Relayed information to responsible group.

432

07/14/04

31-ID

Closed

1 hr 5 min

ASD-ME

FM3 DP fault at 05:51 according to log on FE-EPS touch screen on mezzanine.

Fault reset per standing order. ASD-ME will investigate causes of dP trips during next shutdown.

433

07/14/04

18-ID

Open

21 min

ASD-VAC

Fault 67 PS2_NOSWITCH-S.

Repairs are scheduled for 7/19/04. Work Request 15383 submitted and approved.

436

07/16/04

33-ID

Open

5 hr 30 min

ASD-SI

FEEPS trip due to bad Love controller FM2-DP.

Replace faulty LOVE controller.

437

07/17/04

16-ID

Open

4 hr 51 min

Serious Fault #112 (P8B_MS1_NOSWITCH) occurred. I have reset the fault three times (per FC standing order). I will contact Jon Hawkins (PSS on-call engineer).

ASD-SI adjusted air cushion stops to allow proper travel of shutter cylinder.

437

07/17/04

16-ID

Open

34 min

ASD-SI

Serious Fault #112 (P8B_MS1_NOSWITCH) occurred. I have reset the fault three times (per FC standing order). I will contact Jon Hawkins (PSS on-call engineer).

ASD-SI adjusted air cushion stops to allow proper travel of shutter cylinder.

Machine Studies Schedule for Run02-09, 2004, July 19th, 0800 - July 21st, 0800:

Time

Description

Studiers

SRStatus

Monday, 7/19/04

0800-0805

Record XBPM data for user orbit with TopUp running

OPS

SR Beam

0805-0900

Waveguide switch from RF3/RF4 to RF2/RF4

RF Group

No Beam

0805-1000

Upgrade power supply for MPEOB strobe in Zone C

McNamara

No Beam

0805-1000

Swap out corrector power supplies in Zone C for reg upgrade

McNamara

No Beam

0805-1000

Install and test a fix for the A:H3 corrector problem

Lenkszus

No Beam

0805-0900

Reboot iocs40fb with a database that supports automated reflective memory testing

Lenkszus

No Beam

0805-1000

Test DACI software with SR PSCU

Hillman

No Beam

0805-1000

Test the K1 relay a potential external interlock problem with the Raws supplies starting in sector 6:7 and 36:37

Sprau

No Beam

0900-1200

Wireless testing Bldg. 420

Stejskal

No Impact?

0805-0900

Install TLD badges in the LEUTL tunnel on the beam pipe

Vacca

No impact

0805-0900

Replace Gespac ADC board for the RF gun heater supply

Hillman

No Inj

0805-0930

Reboot linac iocs : ioclirfgun , ioclic1, ioclic4 to add pvs to monitor PS setpoint changes relative to conditioning

Varotto

No Inj

0830-1030

Test cables and replace filter comparators at 10BP2, 15BP2, and 15BP3

Erwin

Access Zone B

0830-0930

Reboot iocs3VP to incorporate vacuum pump database additions

Quock

No Beam

0830-1030

Terminate existing ACIS cable and power cable for a future radiation monitor at the 26-ID Ratchet Door Column

Vacca , Forrestal

No Beam

0830-0930

Reboot iocfe31

M. Smith

No Beam

0830-0930

Replace red beacon at L1:MO:PF

Cours

No Inj

0830-0930

Replace rf source backup generator

Cherbak

No Beam

0830-1230

Replace the BOOSTER TO LEUTL radiation stop solenoid air manifold, verify the wiring of the ACIS limit switches, perform a `mini' validation of the affected ACIS

Markovich , Gagliano

Access Booster (AA mode)

0830-1130

Replace burnt out magnet strobes lights

Hillman

Access Booster

0830-1000

Bob Keithley to obtain measurements of BTX beamline for future ODR test station

Lumpkin

Access Booster

0845-1000

Check operation of PS2 at 18ID front end. Requires PSS validation of switches on PS2

Gagliano

Access Zone C (AA mode)

0930-1130

Operator training - PAR(0700-1500)

Glenn , Jones

No Inj

0900-1000

Replace rotary encoder on upstream end of the 3IDds insertion device

Merritt

Access Zone A

0900-1000

Reboot siocops (soft ioc ) to load sequence program to automate testing of reflective memory.

Varotto

No Impact

0900-1000

Add bus analyzer board to sector 5 (iocs5vp) to collect data

Varotto

No Impact

0900-0930

Remove the VTM200 10/100Mb media converter undergoing field testing at iocs1bpm and restore connections to the Cabletron Ethernet media converter

Laird

No Beam

1000-1130

Test cable and replace filter comparator at 35BP2

Erwin

Access Zone E

1000-1030

Install cable in iocmtime racks to bring P0 to timing patch panel

Lenkszus

No Beam

1230-1300

Beam recovery.

OPS

Stored beam and injection

1300-1500

Reproduce Nan problem with control law.

Emery Lenkszus

Stored beam nad injection

1500-1600

CPU mode testing.

Smith Emery

Stored beam and injection

1600-1700

Test servo motor.

Stein Xu Sajaev

Stored beam and injection

1700-2100

Collect nbbpm spectrum. Parallel to RF phase...

Sun

Stored beam, no injection

1700-2100

RF phase anf timing jitter measurements in linac .

Borland

No injection

2100-2400

BPM tests.

Singh

Stored beam and injection

Tuesday, 7/20/04

0000-0600

Canted undulator xbpm studies.

Decker

Stored beam and injection

0600-0900

Prepare for 1296 bunches test.

Sereno Harkay Sajaev Decker et al.

Stored beam and injection

0900-1700

1296 bunch mode test with shutters open. Floor coordinator support required.

Randall

Stored beam and injection

1000-1200

Operator Training - Linac (0700-1500) can be concurrent to the User portion of 1296 bunch operation

Lesson, Jones

No injection

1700-2100

Bunch purity study.

Sereno Borland

Stored beam and injection

2100-2400

Bunch purity vs. number of bunches study.

Sereno

Stored beam and injection

Tuesday, 7/21/2004

0000-0700

Xbpm alignment work.

Decker

Stored beam and injection

0100-0300

Operator Training - Booster. Parallel to xbpm alignment.

Forth

Limited Inj

0700-0800

Ready for 0+24X1 fill pattern, low emittance , TopUp

OPS

Stored beam and injection

Kevin Randall discussed the upcoming bunch mode test on July 20th. User asked if problems will recur. Expected lifetime will be >100 hours.   Bunch spacing is 2.85 nanoseconds. Detailed schedule is as follows:

Time

Status

0600 - 0900

Machine Prep for 1296 bunch test:  Sereno, Harkay, Sajaev, Decker, et. al.

0900 - 1700

1296 bunch mode test with shutters open:  floor coordinator support required.

Annual Report & Activity Report - R. Fenner :   Discussed the APS activity reports.

Safety E. Chang:   A laser eye injury has occurred at LANL.   Suggests the use of a beam on indicator to prevent occurrences.   Stressed adherence to procedures.   A user asked how someone would mistake a laser for being off when it is in fact on.   Elroy Chang stated that when in doubt, user should always assume laser is on, and never look into the beam.   Elroy also suggested turning down laser intensity so that less optically-dense goggles can be used to locate the beam on a fluorescent card.

In an emergency it is preferred that you call 911.   This makes it easier for the laboratory's emergency personnel to locate you.   From a cell phone you can also call 630-252-1911.   This is not the preferred method of contact, since it is more difficult for emergency personnel to determine your location.

Beware of counterfeit valves from Hunt Valves, Inc. produced between 1992 and 2001.   A user asked if problems were expected with the valves?   An investigation is underway.

Richard Hislop gave an update on CNM construction.   A portion of Kearney Road is fenced off between Rock Road and Bluff Road .   The gates are still open.   The gates will be closed when construction is completed on Bluff Road to the east of the APS.   There will be no traffic through the parking lot (431Z area).