Fri Jun 3 12:40:30 2011

Ta#37-LP-SIS (w.o#38634-5)

Filled with 400 Ta foils (25/pk), 4.0 cm in length.  Total mass + Ta wire = 42.32g.  The heat shield was assembled and tested, and the standard salts were added.  Target was installed in the test stand on Jun 1, 2011.  

Fri Jun 17 09:19:46 2011: The following salts have been added: Li, Na, Rb @ 10uL, K @ 5uL, Cs @ 15uL, and Be @ 10uL.

Wednesday, July 06, 2011, 14:08:  TM1 is still under repairing.  It was tested at the test-stand. Target is on the shelve and ready to be used.

Tuesday, July 26, 2011, 15:58:  Salt added before going into the hotcell: Li,Na,Rb,K,Cs.  Target is ready to be used for TM1 test.

Wednesday, July 27, 2011, 10:48:  It was found that the extraction electrode had some arc marking on it (see attachment: EE).  Investigating... 

Wednesday, July 27, 2011, 12:51: After further investigation on the extraction electrode,  we found some black and blue(or green) deposit on the outside surface and inside of the EE.  This deposit is most likely copper oxide, which formed during the HV test.  The EE was removed, and wiped clean with methanol.  (see attachment: EE_CuO).  This target will be used in TM1. 

Friday, August 26, 2011, 09:48:  As per Friday Aug 26 TIS meeting, bNMR is very satisfied with the beam; the count rate is very stable.

UCx#2 Spec:

Target wrapped with 3 Ta-heat shields

Target length = 11.2cm

Total UC2/C foils = 245 discs

Total U/cm2 = 15.27g

Standard salts = 10uL Na, 10uL Li

Tuesday, August 09, 2011, 14:27: 

Target came out from the glovebox and transported to the cold lab for assembly.  During the assembly, one of the screw-heads for the heat-shield broke (see attachment#1: broken_screwhead). 

The target was leak checked and fine. 

Target is going back to the glovebox to be kept under Ar until RH is ready (see attachment #2: UCx#2).

 Tuesday, October 04, 2011, 10:21

UCx#2 run was finished last week.  

Target was moved from ITW to south hot cell, and stored in a bucket under argon feed. 

 Wednesday, November 16, 2011, 13:51

UCx#3 descriptions: 

Target oven wrapped with 3-Ta heat shields, including the back block (see attachment#1)

Total UCx/C discs = 365

Total disc length = 12.9cm 

UC2/C (365 foils) = 44.76 g

UC2/C (365 foils) - organics = 39.24g

U (365 foils) = 34.05g

U (365 foils) thickness = 16.03 g  

Salts added:  Na, Li, K, Rb, & Ce. 

Monday, February 13, 2012, 16:00 

Nb#5 target description:

Total Nb foils = 400

Total Mass (400 foils + Ta wire) = 24.52g

Total Length = 4.0cm

Target thickness = 11.57 g/cm2

Target Density = 8.57g/cm3

Inserted Rh foil (1cmx1cm)

Added standard salts before test-stand:

15ml Cs

10ml Li, Na, Rb  

5ml K 

Monday, April 23, 2012, 08:58

Target was tested in the test stand, see https://elog.triumf.ca/TIS/Test-Stand/77 for more details.

No salts were added after the test.  The target is now in the conditioning station. 

Ta#38 LP-SIS target description:

Total Ta foils = 400

Foil thickness = 0.025mm

Target density = 16.69 g/cm3

Target area = 2.12cm2

Target length = 4.3cm

Total Mass (400 foils + Ta wire) = 42.8013g

See the link for more details: http://documents.triumf.ca/docushare/dsweb/View/Collection-8541

Friday, June 01, 2012, 11:36

The target is now in the test-stand, and by next week Tuesday, it should go in the Hotcell.

 Monday, June 04, 2012, 16:56

The target was tested in the Test-stand.  The EE was inspected and a small amount of deposit was discovered after the test (the same stuff was found on Ta#36),  see attachment #1.  The samples were collected and will be analyzed through SEM/EDX/XRD.

The EE and the common plate were cleaned with methanol and were assembled back.

The target is ready to go in the Hotcell tomorrow, June 05.

 Monday, November 05, 2012, 16:42

The deposits on the EE and CC were analyzed using XRD

On the EE, it was mainly copper hydroxide nitrate, Cu2(OH)3(NO3). (see attachment #2)

On the CE, it was mainly tantalum, Ta. (see attachment #3)

John Wong wrote:

Monday, February 13, 2012, 16:00  Nb#5 target description: Total Nb foils = 400 Total Mass (400 foils + Ta wire) = 24.52g Total Length = 4.0cm Target thickness = 11.57 g/cm2 Target Density = 8.57g/cm3 Inserted Rh foil (1cmx1cm) Added standard salts before test-stand: 15ml Cs 10ml Li, Na, Rb   5ml K  Monday, April 23, 2012, 08:58 Target was tested in the test stand, see https://elog.triumf.ca/TIS/Test-Stand/77 for more details. No salts were added after the test.  The target is now in the conditioning station.

 Monday, June 11, 2012, 13:42

The Nb#5 run was good.  The target is now in the storage. 

see https://elog.triumf.ca/TIS/RH-ISAC/124

Friday, July 20, 2012, 11:35

UCx#4 target description, see attachment#1

The target is assembled and stored in the Ar-glove box.  It will be transported to the South Hotcell on July 31, 2012.

Wednesday, August 29, 2012, 14:50

UCx#5 target description, see attachment#1

The target is currently undergoing the final conditioning in the Evaporator #1. 

 Wednesday, December 05, 2012, 15:46

This target was broken right before the end of the final run.  The target was inspected today inside the Hotcell and the pictures can be found here: http://documents.triumf.ca/docushare/dsweb/View/Collection-9357

Looks like the protective layer (TaC coating) was worn out over the course of the run time. 

We need to improve the target coating so this can be prevented in the future.

More info about this later...

 The target has been used for operator training previously at the ISAC Test Stand.

• 9-pin connector was completed and grounded
• RH gripper arms added to the heat shield

Further documentation on DocuShare

Ta#38 LP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 16.69 g/cm3

Target length = 4.1cm

Total Mass (400 foils + Ta wire) = 43.15g

Disc area = 2.12 cm2

Ta thickness = 20.354g/cm2

See link for more details:

http://documents.triumf.ca/docushare/dsweb/View/Collection-9934

Friday, August 30, 2013, 12:06

UCx#7 target specification, see attachment #1.

The target is assembled and going online soon.

Friday, October 25, 2013, 17:35

Ta#41 HP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 16.69g/cm3

Target length = 4.0cm

Total Mass (400 foils + Ta wire) = 42.19g

Monday, March 17, 2014, 16:14

Ta#42 LP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 16.69 g/cm3

Target length = 4.2cm

Total Mass (400 foils + Ta wire) = 45.899g

 Tuesday, July 15, 2014, 9:45

Ta#42 LP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 16.69 g/cm3

Target length = 4.9cm

Total Mass (400 foils + Ta wire) = 45.920g

 Monday, July 28, 2014, 15:52

See attachment#1 for ZrC target description. 

Target is currently undergoing the sintering process

 Thursday, April 16, 2015, 14:07

See attachment for target description

 Wednesday, June 03, 2015, 10:53

Total length packed = 12.3cm

See attachment for target description.

Laura Lambert wrote:

Wednesday, June 03, 2015, 10:53 Total length packed = 12.3cm See attachment for target description.

 Monday, July 06, 2015, 12:10

This target did not pass the test-stand and will not be used for online (unless if it gets approved).  The target container is deformed.  An increase of voltage was observed during the test; perhaps it's a sign of the container being cracked?!  See Test-stand e-log#450 for more details.  

Another target is already prepared and being tested.  (Target Oven WO# 41177-2). 

Tuesday, July 07, 2015, 12:36 

Total no. discs = 422

Total packed length = 13.2 cm (measured after the sintering process) 

Note:  The theoretical length (ZrC + graphite foils) is 10.52cm    After the sintering process, the stack of discs expanded in length.  To avoid crushing the materials while inserting the endcaps, the discs are gentally packed to 13.2cm.

(see attachments for more details)

 Friday, March 04, 2016, 14:56

Attached please find the UCx#15 target description.

Note: This is the second UCx target using the new LP-SIS small center block design.