Latest revision as of 17:59, 15 May 2012

Chriss Jackson's Positron Target development logbook

Goal: Construct a Tungsten target and vacuum enclosure to be used for generating positrons using an incident electron beam.

Geometry

Tungsten Disks

Dimensions are in cm

http://www.alibaba.com/product-gs/346924116/Tungsten_Disk_With_Screw.html

http://www.zlxtech.com.cn/products.asp?productcode=7401000404

If the motor has a radius of 2.5" and I want to shield the motor from the beam using 2" of Pb and the beam is about 1" in diameter then I want a Tungsten disk that is

5.21" in radius = 13.25 cm in radius ~ 30 cm in diameter

Target Chamber design

Latest Design From empire and Sadiq's measurement of the available space


Target motor Design	Available beam line space	Motor axle coupling to rotary union	Hub and spline to attache targets

Dimensions for the target chamber box. Measurements in inches. updated 11 May 2012. Holes for tubing still missing, need to measure.


Bottom view	Front View	Left View	Isometric View

ports

Parts	Quantity	Items connecting to Target Chamber
10 - pin wiring feedthrough	1	Feedthrough
cooling lines	2	Cooling Hoses
IR optical window	2	Optical Window
Beam line	2	Flange
Ion Pump	1	Flange
Roughing Pump	1

1.) Lid with a lip that bolts on.

2.) bolt pattern on the bottom for the motor mounts

3.) find cooling lines for inside the box

4.) Find elbows for the rotary unions.

. . . . 100.) Design a target mounting system

Equipment

Motor

Controller

Vacuum Chamber

Feedthroughs

A: 5.88 B: 3.00 C: 4.25 D: 4.63

http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=611005

Performance tests

Heat load calculation

HRRL_Positron_Rotating_W_Target

@@ Line 24: / Line 24: @@
 .21" in radius = 13.25 cm in radius ~ 30 cm in diameter
+==Target Chamber design==
+Latest Design From empire and Sadiq's measurement of the available space
+{| border="1" cellpadding="20" cellspacing="0"
+|-
+|[[File:EmpMagHRRLPositronTargetChamberDrw_9-20-11.png | 100 px]]||[[File:HRRLPositronTargetSpace_10-5-11.png | 100 px]] || [[File:HRRLPositronTargetCoupler_10-5-11.png | 100 px]]|| [[File:HRRLPositronTargetHub_10-5-11.png | 100 px]]
+|-
+| Target motor Design  || Available beam line space || Motor axle coupling to rotary union || Hub and spline to attache targets
+|}
+Dimensions for the target chamber box. Measurements in inches. updated 11 May 2012. Holes for tubing still missing, need to measure.
+{| border="1" cellpadding="20" cellspacing="0"
+|-
+|[[File:Target_box-bottom.jpg | 100 px]]||[[File:Target_box-front.jpg | 100 px]] || [[File:Target_box-left.jpg | 100 px]]|| [[File:Target_box-iso.jpg | 100 px]]
+|-
+| Bottom view || Front View || Left View || Isometric View
+|}
+==ports==
+ {| border="1"  |cellpadding="20" cellspacing="0
+|-
+| Parts     || Quantity || Items connecting to Target Chamber
+|-
+|  10 - pin wiring feedthrough || 1 || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=9132004 Feedthrough]
+|-
+|  cooling lines  ||  2 || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=611005 Cooling Hoses]
+|-
+| IR optical window  || 2  || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=9712007  Optical Window]
+|-
+| Beam line || 2  || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=100021  Flange]
+|-
+| Ion Pump || 1  || [http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=100021  Flange]
+|-
+| Roughing Pump || 1  ||
+|}
+.) Lid with a lip that bolts on.
+.) bolt pattern on the bottom for the motor mounts
+.) find cooling lines for inside the box
+.) Find elbows for the rotary unions.
+.
+.
+.
+.
+.) Design a target mounting system
 =Equipment=
@@ Line 34: / Line 96: @@
 ==Feedthroughs==
+[[File:liquid_nitro_tubing.gif]]
+A: 5.88
+B: 3.00
+C: 4.25
+D: 4.63
+http://www.mdcvacuum.com/DisplayPart.aspx?d=MDC&p=611005
 =Performance tests=

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