Marla Cervantes wrote:

Thursday, November 22, 2018, 17:25 D-shaped discs were cut from cast #26 A 13mm punch was used to punch out discs from pre-cut strips The target consists of 236 discs of 10 cm in length - all single discs, no packs. 236 x UO2/C discs = 22.66 g Graphite insert with caps = 11.74 g The loaded inser is placed on target boat. Boat previously coated with TaC and sintered. Ta-target boat is wrapped with 3-layers (2 new one used) of heat shield and installed in evap1. Chamber is pumping down.  Friday, November 23, 2018, 08:53 Vacuum limits: Good vacuum 1e-1 Torr Bad vacuum 5e-1 Torr IGP1 = 4.12 e-6 Torr Current tapped manually to 100 A at 1A/s in 10 A blocks with a waiting period of 20 s between each increment.   Initial IGP1 = 5.31 e-6 Torr Max  IGP1 = 0.066 Torr Waited 20 min for pressure to rise and drop. The current tripped off, when the 0.013 torr. Increasing the current to 100 A again. IGP1 = 7.00e-5 Torr Rate was increased to 25 A each 20 s until 200 A The pressure increased and IV1 opened, current was dropped to 100 A Pressure after 5 min 4e-4 Torr Rate was increased again to 25 A each 20 s until 200 A The current was reduced to 110 A because the pressure was rising to fast Rate was increased again to 25 A each 20 s until 300 A Pressure was ok and current tripeed off The automatic ramp was set to 20 A/ min from 0 to 300 A The automatic ramp was changed to 10A/2min to 450 A IGP1 = 2.15e-5 Torr After 1.5 hour, the automatic ramp was set to 20 A/ min from 450 to 500 A After 4hrs, the automatic ramp was set to -2 A/ min from 500 to 0 A

 Monday, November 26, 2018, 17:00

 The UCx was transferred to the glove box and loaded in  tantalum container  42218-3.

 Friday, October 11, 2013, 18:00

The target container was previously coated with TaC and sintered in Evap 2.

The target is loaded with ??? discs of UCx (material from batch #???)

Total length = ???

The container is wrapped with 3 layers of Ta-heat shield, including the back block.

A regular TaC coated / sintered endcap is inserted on left, wrt the ionizer tube pointing out of the page. The right end is open with no cap.

The chamber is pumping down.

Instructions for conditioning the UCx target:

1. TGHT will need to heat up to ~ 175A to burn off the organics.

    Parameter setup: 5.0e-5 good vac, 6.0e-5 bad vac. The auto-ramping rate is set to 0.1A/min.

2. Once the organics have burnt off, ramp down the TGHT to 0A at 2A/min.

3. Purge the glovebox with argon gas.

4. Vent the chamber with Ar gas. Close the valve when it is completely vented.

5. Remove the target. Be careful the left end (view from the top) is open with the D-cap.

6. Clean the chamber with TCE and remove all the gunge.

7. Install the target back

8. Pump down the chamber to at least low 10e-6 Torr before begin the final carbonization process.

9. Auto-ramp the TGHT current to 175A at 1A/min.

10. Once the TGHT reach to 175A. Auto-ramp TGHT to 520A at 0.1A/min.

11. At 520A, keep heating the target for at least 4-5 hours.

12. Auto ramp TGHT to 0A at 2A/min.

13. Purge the glovebox with argon for at least 5 min.

14. Vent the chamber with argon gas. Close the valve when it is completely vented.

15. Remove the target from the chamber and put in the "orange james bond box" and transport to the Ar-glove box.

Wednesday, April 30, 2014, 14:50

The target container was previously coated with TaC and sintered in Evap 2.

The target is loaded with 250 discs of UCx (material from batch#09_06022014)

Total length = 9.3cm

The container is wrapped with 3 layers of Ta-heat shield, including the back block.

A regular TaC coated/sintered endcap is inserted on left, wrt to the ionizer tube pointing out of the page, so the right end is open with no cap to allow out-gassing.

(Did not use a D-cap... This worked for UCx#8. Need to be careful when handling the target!)

The chamber is being dumping down.

TGHT will be ramped up to 520A - keep heating at that current for ~4 to 5 hours.

Parameter setup: 5.0e-5 good vac, 6.0e-5 bad vac. The auto-ramping rate is set to 0.1A/min.

 Wednesday, April 30, 2014, 16:41

Vacuum at 1.5 e-5 Torr.  Stepped up TGHT to 25A.

 Wednesday, April 30, 2014, 17:42

Pressure 9.2 e-6 Torr.  Initiate auto-heating.

 Friday, May 16, 2014, 16:02

Conditioning complete. (see attachment)

End-caps need to be expended before assembly.

Thursday, May 30, 2013, 16:16

The target container was previously coated with TaC and sintered in Evap 2.

The target is loaded with 250 discs of UCx (material from batch#03_02042013)

Total length = 8.9cm

The container is wrapped with 3 layers of Ta-heat shield, including the back block.

A regular TaC coated/sintered endcap is inserted on left, wrt to the ionizer tube pointing out of the page.  The right end is open with no cap. 

(Did not use a D-cap... trying out this method.  Need to be careful when handling the target!)

The chamber is dumping down.

 Instructions for conditioning the UCx target:

1.  TGHT will need to heat up to ~175A to burn off the organics. 

      Parameter setup:  5.0e-5 good vac, 6.0-5 bad vac.  The auto-ramping rate is set to 0.1A/min.

2.  Once the organics have burnt off, ramp down the TGHT to 0A at 2A/min.

3.  Purge the glovebox with argon gas. 

4.  Vent the chamber with Ar gas.  Close the valve when it is completely vented.

5.  Remove the target.  Be careful the left end (view from the top) is open with the D-cap. 

6.  Clean the chamber with TCE and remove all the gunge.

7.  Install the target back

8.  Pump down the chamber to at least low 10e-6 Torr before begin the final carbonization process.

9.  Auto-ramp the TGHT current to 175A at 1A/min.

10.  Once the TGHT reach to 175A.  Auto-ramp TGHT to 520A at 0.1A/min.

11.  At 520A, keep heating the target for at least 4-5 hours.

12.  Auto ramp TGHT to 0A at 2A/min.

13.  Purge the glovebox with argon for at least 5 min

14.  Vent the chamber with argon gas.  Close the vavle when it is completely vented.

15.  Remove the target from the chamber and put in the "orange box" and transport to the Ar-glove box.

Done!

 Friday, May 31, 2013, 18:17

Chamber has pumped down to 6.7e-6 Torr. 

Ramping up TGHT to 175A.

 Wednesday, June 05, 2013, 11:14

TGHT reached to 227A/1.99V. (see attachment#1)

TGHT is ramping down to 0A  to clean up the chamber before continue with the conditioning.

John Wong wrote:

Thursday, May 30, 2013, 16:16 The target container was previously coated with TaC and sintered in Evap 2. The target is loaded with 250 discs of UCx (material from batch#03_02042013) Total length = 8.9cm The container is wrapped with 3 layers of Ta-heat shield, including the back block. A regular TaC coated/sintered endcap is inserted on left, wrt to the ionizer tube pointing out of the page.  The right end is open with no cap.  (Did not use a D-cap... trying out this method.  Need to be careful when handling the target!) The chamber is dumping down.  Instructions for conditioning the UCx target: 1.  TGHT will need to heat up to ~175A to burn off the organics.        Parameter setup:  5.0e-5 good vac, 6.0-5 bad vac.  The auto-ramping rate is set to 0.1A/min. 2.  Once the organics have burnt off, ramp down the TGHT to 0A at 2A/min. 3.  Purge the glovebox with argon gas.  4.  Vent the chamber with Ar gas.  Close the valve when it is completely vented. 5.  Remove the target.  Be careful the left end (view from the top) is open with the D-cap.  6.  Clean the chamber with TCE and remove all the gunge. 7.  Install the target back 8.  Pump down the chamber to at least low 10e-6 Torr before begin the final carbonization process. 9.  Auto-ramp the TGHT current to 175A at 1A/min. 10.  Once the TGHT reach to 175A.  Auto-ramp TGHT to 520A at 0.1A/min. 11.  At 520A, keep heating the target for at least 4-5 hours. 12.  Auto ramp TGHT to 0A at 2A/min. 13.  Purge the glovebox with argon for at least 5 min 14.  Vent the chamber with argon gas.  Close the vavle when it is completely vented. 15.  Remove the target from the chamber and put in the "orange box" and transport to the Ar-glove box. Done!  Friday, May 31, 2013, 18:17 Chamber has pumped down to 6.7e-6 Torr.  Ramping up TGHT to 175A.  Wednesday, June 05, 2013, 11:14 TGHT reached to 227A/1.99V. (see attachment#1) TGHT is ramping down to 0A  to clean up the chamber before continue with the conditioning.

 Wednesday, June 05, 2013, 16:45

Glove box purged with Ar, ~30min

Chamber vented with Ar

Target removed. chamber cleaned with TCE.

Chamber pumped back down

IG1 currently at 1.4E-4 torr

See attachment 1 before chamber was cleaned

Thursday, June 06, 2013, 11:38

Chamber has been pumped down overnight

IG1 currently at 4.7E-06 Torr, BP at 30 mTorr

TGHT will be ramped up to 220A at 1A/min

Laura Lambert wrote:

John Wong wrote: Thursday, May 30, 2013, 16:16 The target container was previously coated with TaC and sintered in Evap 2. The target is loaded with 250 discs of UCx (material from batch#03_02042013) Total length = 8.9cm The container is wrapped with 3 layers of Ta-heat shield, including the back block. A regular TaC coated/sintered endcap is inserted on left, wrt to the ionizer tube pointing out of the page.  The right end is open with no cap.  (Did not use a D-cap... trying out this method.  Need to be careful when handling the target!) The chamber is dumping down.  Instructions for conditioning the UCx target: 1.  TGHT will need to heat up to ~175A to burn off the organics.        Parameter setup:  5.0e-5 good vac, 6.0-5 bad vac.  The auto-ramping rate is set to 0.1A/min. 2.  Once the organics have burnt off, ramp down the TGHT to 0A at 2A/min. 3.  Purge the glovebox with argon gas.  4.  Vent the chamber with Ar gas.  Close the valve when it is completely vented. 5.  Remove the target.  Be careful the left end (view from the top) is open with the D-cap.  6.  Clean the chamber with TCE and remove all the gunge. 7.  Install the target back 8.  Pump down the chamber to at least low 10e-6 Torr before begin the final carbonization process. 9.  Auto-ramp the TGHT current to 175A at 1A/min. 10.  Once the TGHT reach to 175A.  Auto-ramp TGHT to 520A at 0.1A/min. 11.  At 520A, keep heating the target for at least 4-5 hours. 12.  Auto ramp TGHT to 0A at 2A/min. 13.  Purge the glovebox with argon for at least 5 min 14.  Vent the chamber with argon gas.  Close the vavle when it is completely vented. 15.  Remove the target from the chamber and put in the "orange box" and transport to the Ar-glove box. Done!  Friday, May 31, 2013, 18:17 Chamber has pumped down to 6.7e-6 Torr.  Ramping up TGHT to 175A.  Wednesday, June 05, 2013, 11:14 TGHT reached to 227A/1.99V. (see attachment#1) TGHT is ramping down to 0A  to clean up the chamber before continue with the conditioning.      Wednesday, June 05, 2013, 16:45 Glove box purged with Ar, ~30min Chamber vented with Ar Target removed. chamber cleaned with TCE. Chamber pumped back down IG1 currently at 1.4E-4 torr See attachment 1 before chamber was cleaned     Thursday, June 06, 2013, 11:38 Chamber has been pumped down overnight IG1 currently at 4.7E-06 Torr, BP at 30 mTorr TGHT will be ramped up to 220A at 1A/min

 Thursday, June 06, 2013, 16:53

TGHT has reached to 220A; continue ramping up to 520A at 0.1A/min rate.

 Monday, June 10, 2013, 12:28

TGHT has reached to 520A; target has been heated at the current over the weekend.

IG is stabilizing at 3.7e-6 Torr. 

Initiating auto-cooling to 0A at 2A/min.

Chamber will be vented in Ar tomorrow.

 Monday, June 10, 2013, 17:50

TGHT reached to 0A. See attachment #1 for the overall process. 

Friday, August 24, 2012, 16:40

Target is loaded with 245 discs of UCx (material from batch#02-13062012),

Tot length = 9.1 cm. 

The container is wrapped with 3 layers of Ta-heat shield, including the back block. 

A regular TaC-coated endcap is inserted on one end and the other is inserted with a D-cap

The chamber is currently begin pumped down.

 Instructions (while I'm on vacation)

1.  TGHT will need to heat up to ~175A to burn off the organics. 

      Parameter setup:  5.0e-5 good vac, 6.0-5 bad vac.  The auto-ramping rate is set to 0.1A/min.

2.  Once the organics have burnt off, ramp down the TGHT to 0A at 2A/min.

3.  Purge the glovebox with argon gas for at least 5 mins. 

4.  Vent the chamber with Ar gas.  Close the valve when it is completely vented.

5.  Remove the target.  Be careful the left end (view from the top) is open with the D-cap. 

6.  Clean the chamber with TCE and remove all the gunge.

7.  Install the target back

8.  Pump down the chamber to at least low 10e-6 Torr before begin the final carbonization process.

9.  Auto-ramp the TGHT current to 175A at 1A/min.

10.  Once the TGHT reach to 175A.  Auto-ramp TGHT to 520A at 0.1A/min.

11.  At 520A, keep heating the target for at least 4-5 hours.

12.  Auto ramp TGHT to 0A at 2A/min.

13.  Purge the glovebox with argon for at least 5 min

14.  Vent the chamber with argon gas.  Close the vavle when it is completely vented.

15.  Remove the target from the chamber and put in the "orange box" and transport to the Ar-glove box.

Done!

 Monday, August 27, 2012, 11:26

The chamber has been pumped down over the weekend.  Vac is currently at 3.45e-6 Torr. 

Auto-ramping TGHT to 55A at 0.25A/min.

 Monday, August 27, 2012, 16:24

TGHT reached to 55A and stayed for about 2 hours.  Vacuum went up to 1.9e-5 Torr and it's slowly coming down. 

Increase auto ramping to 175A at 0.1A/min.

Friday, June 13, 2014, 15:02

Target container was previously coated and sintered with TaC.  It's wrapped with 3-layers of Ta heat shield, including the center block.

The target consists of 280 discs of UCx with 9cm in length.

A regular TaC coated/sintered endcap is inserted on right, wrt to the ionizer tube pointing down, so the left end is open with no cap to allow out-gassing.

The chamber is being dumping down.

TGHT will be ramped up to 520A - keep heating at that current for ~4 to 5 hours.

Parameter setup: 5.0e-5 good vac, 6.0e-5 bad vac. The auto-ramping rate is set to 0.1A/min.

 Friday, June 13, 2014, 16:26

Pressure at 1.9e-5 Torr. 

Initiate auto-ramping- stepping up from 0A at 0.1A/min - leaving for the weekend.

 Wednesday, June 25, 2014, 11:45

TGHT has reached 520A and target has been conditioned at that current for 13hrs. 

Auto-cooling initiated at 2A/min.

Once the target is cooled, the chamber will be vented in Ar.

 Friday, July 04, 2014, 10:06

Process is complete.  Target is stored in the Ar-glove box and ready for assembly.

Thursday, April 05, 2012, 16:43

Target oven is coated with TaC.  The oven is wrapped with 3 Ta-heat shields.

The chamber is currently being pumped down.  Vac @ high 10e-5 Torr.  Heater will be turned on once the pressure is gone down to low 10e-6. 

TGHT will be heated up to 820A.

**** Sintering is postponed until the situation with the ventilation in the lab06 is cleared. ****

 Friday, May 04, 2012, 16:59

The short-term solution  for improving the ventilation system and for the safety in operating the evaporators has been implement.  The test results was reviewed and approved by the committee.  The labs (06 and 07) are now back in operational. 

Friday, May 04, 2012, 17:03

Pumping down evaporator, currently a 2.4e-5 Torr.

Turned on TGHT, and stepped up to 85A.  Pressure remained at low e-5 Torr. 

Initiated Auto-heating at 0.5A/min to Max current 820A.  Parameter set:  Increasing current if Vac <4.0e-8 Torr, Backing current if Vac >5.0e-8 Torr.

 Monday, May 07, 2012, 10:38

At 820A, the TaC coating only seemed to have partially sinterred.  Raised TGHT up to 900A and heated for >6hrs.  The vacuum continued to increase as the target heater was raised; that indicated the sintering reaction was ongoing.  (See attachment #1: Targetoven_TaCsintered_acrchive.jpg).

The auto-cool down was initiated last night.  TGHT is now at 0A.  The chamber will be vented.

Tuesday, May 08, 2012, 07:32

Target oven is filled with 240 discs of SiC/C, and wrapped with 3 Ta-foils.

Tot mass= 31.95g (SiC + C foil + Org)

Tot length packed @ 8.2cm

Target was installed in the chamber yesterday and has been pumped down to low 10e-6 torr.

Increased TGHT to 70A and vacuum is starting to rise, currently at 2.6e-6 Torr.

Max target current = 820A or until there is no further reaction. 

 Tuesday, May 08, 2012, 08:55

Pressue is slowly coming down after heating for a while at 70A. 

Initiated auto heating at 0.5A/min. Parameter set for increasing current if <4.0e-5 torr, and backing off if >5.0e-5 torr.

Wednesday, May 09, 2012, 10:31

 There seems to be a pipe leakage in the ISAC-I B2 level, and the cooling water for the evaporator #1 is connected to the pipe.  

The TGHT was tapped down from 115A, and the p/s was turned off.  The water valve is now shut, and Curtis B. is looking into it.  

Wednesday, May 09, 2012, 13:44

As per Curtis, the drainage pipe was leaky, and it has been fixed. The evaporator is now turned back on.  TGHT was tabbed up to 115A, and has remained at that current for an hour.  The pressure is slowly raising, current at 4.6e-6 Torr.

Wednesday, May 09, 2012, 14:24

Initiated TGHT...

Saturday, May 12, 2012, 23:38 

TGHT is ramping up very slowly (currently at 270A) due to pressure restriction.  It has already taken over 4 days.  (see attachment 1: TGHT 0_270A)

Changed the parameter to <5.0e05 Torr for stepping up in current and >6.0e-5 Torr for backing off current.

 Sunday, May 13, 2012, 20:44

Pressure has started to come down to 3e-6 Torr.  Increased heating rate from 0.5A/min to 1.0A/min.

 Monday, May 14, 2012, 01:09

TGHT has reached to 820A and been holding at that current for about 3hr.  The pressure is coming down steadily, currently at 1.6e-5 Torr.

Asked ISAC OPS (Ed P.) to initial the auto-cool down at 03:00h, at 2A/min.

The target should be ready by 10:00h.

 Monday, May 14, 2012, 10:56

TGHT is now at 0A (see attachment 2).  The chamber is now being vented.  The target will be inspected.

Thursday, May 17, 2012, 12:51 

The target looks good and was tested in the teststand, see https://elog.triumf.ca/TIS/Test-Stand/97

It will be used as SiC#27.  

Tue May 10 14:56:05 2011:  Target is wrapped with 3 heat-shields.  The evaporator is pumping down, vac @ 4.72e-6 Torr.  TGHT was raised to 60A/0.239V.  Auto heating will being now; THGT will be ramped up to 820A @ 2A/min. (See Attachment#1: Staring_process)

Wed May 11 10:16:03 2011: Auto cooling was started by ISAC Ops' help.  TGHT has ramped down to zero.  The p/s will be turned off and the evaporator will be vented soon. (See Attachment#2: Overall Process).

Mon May 9 16:09:35 2011:  Target is wrapped with 3 Ta heatshields and the evaporator is begin pumped down.

Mon May 9 17:59:57 2011:  Vac is @ 1.33e-5 Torr.  TGHT was stepped up to 60A before starting the auto heating process (See Attachment#1: TGHT_ramping_up).   Note: Although the vacuum is at low e-5 torr, this should be fine to start the TGHT because it takes a while to heat up the high power target.

Tue May 10 11:10:44 2011:  TGHT reached to 820A and stayed for 4 hrs before ISAC Ops helped to begin the cooling process.  (See Attachment#2: Overall process).

 Thursday, September 22, 2011, 20:21

Target oven was wrapped with 3 Ta-heat shields and has been pumping down.

IG currently @ 3.2e-6 Torr, BP @ 25mT. 

TGHT stepped up to 85A, 

Began auto-heating: TGHT to max 580A @ 0.5A/min. 

Monday, September 26, 2011, 10:23 

TGHT reached to 580A on last Friday and was held at that current for 3hrs then followed by the auto-cooling.

Chamber was vented.

Target oven looks great.

Tuesday, July 10, 2012, 12:44

Target contains 230 discs of UCx (material from UC2 flakes, batch#01-04062012). 

Total UCx mass (UC2 + C-grv extra + C-foil + Org.) = 38.564g

Total length = 8.0 cm

Target was previously contained with TaC and sintered;  it's wrapped with 3 layers of Ta-heat shield, including the back-block.

A regular TaC-coated endcap is inserted on one end and the other is inserted with a D-cap with two samples  (Marked sample #1 & #2).

The chamber is currently being pumped down.

 Tuesday, July 10, 2012, 19:06

IG currently at 9.1e-6 Torr, BP @ 22mTorr.  

Set TGHT auto-ramping parameters:  

Vacuum limit 5.0 e-6 Torr, (max 6.0 e-6 Torr)

rate = 0.25A/min

TGHT = 55A  

Initiated auto-ramping...

 Tuesday, July 10, 2012, 23:20

TGHT reached to 55A and stayed for about 55min.  The pressure was at 2.5e-5 Torr.

Increases TGHT auto-ramping to 175A to allow burning off most of the organic binder, and the chamber will be vented and cleaned before ramping 

up the heater to 520A.

Ramping rate set to 0.1A/min.

Monday, July 16, 2012, 09:44 

TGHT reached to 175A.  It has taken almost 6 days to burn off the organic binder. (see attachment #1).  

Auto-cool down has initiated.  The chamber will be vented with Ar gas and it will be opened for cleaning of the burn-off binder. 

 Monday, July 16, 2012, 14:20

The chamber was vented with Ar, and the target was removed for cleaning.  There was quite a bit of organic gunge filled the ionizer holder-base plate and condensation out the D-cap (as usual).

The chamber was cleaned and the target was installed back.  It's currently being pumped down.

Once the vacuum reached to 10e- Torr.  The heater will be ramped up to max 520A to finish the sintering process.

 Monday, July 16, 2012, 17:01

Pressure has reached to 9.1e-6 Torr. 

Initiated auto-heating at 1A/min.  Set TGHT = 175A.

 Monday, July 16, 2012, 20:00

TGHt reached to 175A.  Pressure stable at 2.2e-5 Torr.  

Increase target heater to 520A; autoramping at 0.1A/min. 

 Thursday, July 19, 2012, 10:27

TGHT reached to 520A, 5.47V (local 516A, 5.36V) and has stayed for about 4 hours.  IG1 = 9.58e-6 Torr and coming down.  BP=29mTorr.

Thursday, July 19, 2012, 10:29

Auto-cooling down in process...  2A/min for TGHT --> 0A.

 Thursday, July 19, 2012, 16:52

The chamber was vented with Ar gas, and the target was transported to the Ar-glove box. 

The samples were removed from the target.

A new TaC-sintered end-cap was inserted.

The target looks good!

Total time for the conditioning process = 9 days.

See attachment#2 for the overall heating/pressure curves.

Wednesday, August 03, 2011, 20:27 :  Target was wrapped with 3 new Ta-heat shields and 2 around the back block.  The tar from the previous UCx conditioning remained in the chamber was removed and cleaned.  Chamber is currently being pumped down, vac currently @ 8.3 e-6 Torr. 

Wednesday, August 03, 2011, 21:01:  Begin to step up TGHT, currently vac @ 7.5e-6 Torr.

Wednesday, August 03, 2011, 21:30 : TGHT stepped to 110A, vac raising exponentially. 

Wednesday, August 03, 2011, 21:34:  Brought down TGHT to 100A, and began auto heating.  Set rate @ 2A/min, max current to 520A. 

Thursday, August 04, 2011, 00:33:  THGT is ramping up nicely and the vacuum is coming down.  It should reach to 520at 01:30.  I asked ISAC Ops to cool down the target heater at 04:00.

Thursday, August 04, 2011, 10:26 :  TGHT has reached to 0A.  Chamber will be vented.  See attachment1 for striptool.

Thursday, August 04, 2011, 17:44:  All the UCx material from target oven 38634-3 was recovered and repacked in this new oven.  Total mass recovered = 45.911g and packed in 10.7cm length.  Target is currently being pumped down. 

Thursday, August 04, 2011, 20:23:  Current vac 5.6e-6 Torr.  Stepping up TGHT to 104A, vac increasing slowly.  Being auto heating @ 2A/min to 200A. 

Thursday, August 04, 2011, 21:32 THGT @ 200A,( see attachment1: 200A.jpg)

Friday, August 05, 2011, 09:04:  TGHT reached to 520A, and was cool down last night by ISAC Ops.  (See attachment2: re-conditioning).  Target looks good!