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

 Wednesday, September 12, 2012, 02:10

Nb#7 target description: 

Total Nb foils = 400 discs

Total Nb mass (Nb foils + Ta wires) = 26.529g 

Total length (after filled) = 4.6cm 

(see attachment #1) 

 Thursday, May 30, 2013, 16:57

UCx#6 target specification, see attachment #1. 

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

 Wednesday, June 12, 2013, 17:10

Target is assembled and stored in the Ar glove box.

It's ready to go into the Hotcell.

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...

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)

Tuesday, July 15, 2014, 10:58

See attachment for target description 

Thursday, September 25, 2014, 15:59

Ta#44 HP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 16.69 g/cm3

Target length = 4.5cm

Total Mass (400 foils + Ta wire) = 47.49g

 Monday, March 31, 2014, 15:00

Target consists of 360 discs of TiC + graphite foils. 

Total length = 11.7cm 

Total green mass = 40.945g

(see attachment for more details) 

 Wednesday, April 29, 2015, 15:30

SiC#31 HP-SIS target description: 

Total SiC foils = 520 discs 

Total mass SiC + C_grv foils = 60.2441 g (before sintering, expecting ~13% loss of organic mass after burnt off) 

Average mass SiC/disc (without C_grv) = 0.0853g

Average thickness SiC (without C_grv) = 0.2093mm 

Total packed length = 17cm

See attachment #1 for the density measurement.  

 Wednesday, April 01, 2015, 11:25

Ta#45 HP-SIS target description:

Total Ta foils = 400

Foil Thickness = 0.025mm

Target density = 13.48 g/cm3

Target length = 3.4cm

Total Mass (400 foils + Ta wire) = 45.8181g

 Thursday, May 24, 2012, 10:34

SiC#27- HPSIS target description: 

Total SiC foils = 240 discs

Total SiC+ C-grv = 27.79g

Total length = 8.3cm 

Average mass of SiC/disc (without C-grv) = 0.085g 

Average thickness of SiC (without C-grv) = 0.24mm  

No Rh foil added

Salt added = 10uL Li, 10uL Na 

see attachment#1: SiC#27_density measurements

see link for more details: http://documents.triumf.ca/docushare/dsweb/View/Collection-8530

Target oven w.o# 38817-2:

inner diameter: left = 18.29mm, right = 18.16mm.

Filled with 400 foils Nb (16pk, 5 foils/pk).  

Discs spec: 18.65mm/14.65mm, thickness = 0.022mm  

Total mass + Ta-wire = 22.66g

total length = 4.5cm

Rn foil inserted for ionization.  (0.1mm, 0.004", 1cm x 1cm)  

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

 Thu Jun 16 17:21:10 2011

Two targets of Nb-HP-SIS are complete and ready to be installed in the heat shields:

-----------------------------------------------------------------------------------

Target oven w.o# 38817-1:

inner diameter: left = 18.27mm, right = 18.25mm.

Filled with 400 foils Nb (16pk, 5 foils/pk).  

Discs spec: 18.65mm/14.65mm, thickness = 0.022mm  

Total mass + Ta-wire = 22.74g

Total length = 4.5cm

Rn foil inserted for ionization.  (0.1mm, 0.004", 1cm x 1cm)  

------------------------------------------------------------------------------------

Wednesday, July 06, 2011, 14:35: Salts were added and tested in test-stand last 2 weeks.

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.

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. 

Friday, August 30, 2013, 12:06

UCx#7 target specification, see attachment #1.

The target is assembled and going online soon.

Tuesday, September 06, 2011, 13:14: 

Average mass = 0.206g

Average Thickness = 0.0189 cm

Area of D-shaped disc = 2.21 cm2

D-shape discs diameter = 18.5mm (14.5mm cut-out length)

Oven ID, L= 18.22mm, R = 18.20mm 

Density = 4.9266 g/cm3

% Yield Density = 47.20%

Attachment#1 - TaC density measurements.

 Loaded target with 125 discs --> 9.6g Ta/cm2

Total discs mass = 30.41g

Total length = 4.5 cm

 Thursday, September 15, 2011, 10:45

Na & Li were added.

Re foil inserted.

No Ta-heat shields required.

Friday, September 30, 2011, 14:10

After the test-stand, 10uL of Na and Li were added yesterday.   

Target is now ready, and will be moved into the hotcell next week. 

Wednesday, November 16, 2011, 15:51 

After the target was finished and transferred into the hotcell, it was found that the target broke apart from the center block.  This might have happened during the end of the target cooldown. See link for more details: 

http://documents.triumf.ca/docushare/dsweb/View/Collection-7438

John Wong wrote:

Tuesday, September 06, 2011, 13:14:  Average mass = 0.206g Average Thickness = 0.0189 cm Area of D-shaped disc = 2.21 cm2 D-shape discs diameter = 18.5mm (14.5mm cut-out length) Oven ID, L= 18.22mm, R = 18.20mm  Density = 4.9266 g/cm3 % Yield Density = 47.20% Attachment#1 - TaC density measurements.  Loaded target with 125 discs --> 9.6g Ta/cm2 Total discs mass = 30.41g Total length = 4.5 cm  Thursday, September 15, 2011, 10:45 Na & Li were added. Re foil inserted. No Ta-heat shields required.

Tuesday, September 27, 2011, 10:29

 After the test stand, deposited material was found on the Extraction Electrode. A sample of the material was taken for later analysis. The electrode was cleaned with methanol. See attachment for photos.

 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.