Tuesday, May 16, 2017, 13:13

Attached please find the UCx#20 target description.

Thursday, November 29, 2018, 14:20

Attached please find the UCx#26 target description. 

 Nb#10 LP-IG-LIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm (0.001")

Target density =  7.36 g/cm3

Target length = 3.5 cm

Total Mass = 25.7576 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  438 g (w/ end caps)

Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack

Dimpling direction on foils/ Packs.                                                               --> Center <--

End caps installed (Not expanded). No Ta foil heat shield added

Nb#11 LP-IG-LIS target description:

Total Ta foils = 470 [6x20 packs + 350 single discs]

Foil Thickness = 0.025mm (0.001")

Target density =  7.13 g/cm3

Target length = 3.53 cm

Total Mass = 25.165 g [Incl foils + Ta wire on 6 packs]

Total mass w/ Target oven=  434 g (w/ end caps)

Discs in target are arranged as follows: 1pack / 75 singles / 1pack / 100 singles / 2packs / 100 singles / 1pack / 75 singles / 1pack

Dimpling direction on foils/ Packs.                                                               --> Center <--

End caps installed (Not expanded). No Ta foil heat shield added

Replacement for Nb#10

Friday, July 13, 2018, 14:40

Target is ready for installation. 

See attachment for description

 Monday, February 20, 2012, 16:25

Mass of empty target oven used = 461.55g

Target oven filled with 402 discs of UO2/Nb, 5.0cm in length, and tot mass (before sintered) was 61.49g (UO2+Nb+org). 

Target finished the sintering process on Feb 20, 2011.  

U(402 foils) mass = 35.689g

U(402 foils) thickness = 16.834 g/cm2

Target is stored in the Hotlab and ready for assembly. 

John Wong wrote:

Monday, February 20, 2012, 16:25 Mass of empty target oven used = 461.55g Target oven filled with 402 discs of UO2/Nb, 5.0cm in length, and tot mass (before sintered) was 61.49g (UO2+Nb+org).  Target finished the sintering process on Feb 20, 2011.   U(402 foils) mass = 35.689g U(402 foils) thickness = 16.834 g/cm2 Target is stored in the Hotlab and ready for assembly.

Target assembled with new anode end cap.

See attachment for gap size and DocuShare for further information.

 On tuesday July we lower the cathode heater to swap the anode-cathode bias. While lowering the cathode heater a short on the anode developed. 

The polarity swap was not possible because the target/tube assembly has also a short to common. 

We return the configuration has it was and we added two 100 Ohms: 5 W resistor between the common and the heaters to prevent current to flow back to the common. 

The anode short disappear during the cathode and target heating. 

Three Ta heatshields left installed on container.

ITE-TM4-Ta#35-Hp-SIS

Thu Apr 7 15:32:32 2011:

Target oven - w.o#38481-3.

Packs of Ta foils were previously prepared by Vicky H.

Marik loaded the target:  400 of 0.025mm foils (25 foils/pk) in 3.5cm length.  (Recommended length 4.0-4.5cm; If too closely packed, wires get squeezed and snapped)

Average mass per discs = 0.105g

Total mass (Ta+wire) = 45.06g

Disc area = 2.12cm2

Ta thickness = 21.25g/cm2

Thu Apr 28 :

Target heat Shield (w.o 38303-4) cleaned

Target is now assembled by John and Rick

Megger Test Performed:

TA-->HS = 540V, OL

TA-->EE = 540V, OL 

HS--> EE = 1049V, OL

Leak Check OK

*SIS restraint used in this target ion source

Mon May 9 10:32:40 2011:  Standard salts added: Li, Na, Rb @ 10uL, K @ 5uL (but added 10uL), Cs @ 15uL.  Target will be going to the test stand.

Fri May 20 16:57:22 2011: 

Target was tested on the Test Stand but problems with the software (see Test stand elog). 

Standard salts added: Li, Na, Rb @ 10uL, K @ 5uL (but added 10uL), Cs @ 15uL, and Be @ 10uL.

Monday, July 18, 2011, 11:15:  Target ended on July 16.  The target was used online for an extra 2 weeks and performed very well. 

Thu Mar 31 15:19:51 2011:  SiC#25 was made sometime in December of 2010.  It is now in the target module and ready to be conditioned. 

Mon Apr 18 18:17:05 2011: It was found later that no salt was added to this target after it came out from the test stand.  However,  there were enough 40Ca and 39K  for tuning (See attachment#1 for the big mass scan).  Once the P+ is back, the yields will be measured.

Fri Apr 29 15:30:26 2011:  Low 27Al was ionized from the surface for some reason.  However, after the green laser was shone into the extraction tube, more 27Al was produced.  Then, the laser was turned off, the target continued to surface ionizing 27Al.  There could be a blockage from the rhenium (Re) ionizer foil.  Jens L. will investigate this further and do a test with the lasers and the rhenium foil.

 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.

Details about Ta Hp surface, w.o#38295-4 (spare):

This target was built as a spare.

Note: Left side target arm replaced, Nov 18, 2010.  Weld prep on centre block misaligned.  (Marik has more details about this).

Packs of Ta foils were prepared by JW. 

Target was filled with 400 of 0.025mm foils (25 foils/pk) in 4.0cm length. 

Total Mass of 16 packs of Ta foils + Ta wires = 42.70g.  

See attachment#1 for the measurement.

Friday, April 19, 2013, 09:44 

Target was tested at the Teststand.  Result Good. 

Ready for use.

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)  

 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

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