View source for Vendors for parts

== Ionization Chamber material ==

=== Modern Plastics ===

Source of Ertalyt and G10/FR4 plastic sheets

Address:  676 Howard Ave, Bridgeport, CT, 06605-0574

Phone:  (203) 333-3128  / (800) 243-9696

sales reps:  Vicky Rivera  vrivera@modernplastics.com

Some previously used materials:

Ertalyte, PET NAT PET-P Plate natural

G10/FR4

=== Rohacell===

was a company at Degussa.com

now it is called evonik
http://www.evonik.com/en/index.html

http://www.degussa.com/degussa/en/products/productdatabase/default.htm?action=details&page=1&pid=1974&rno=1

http://www.rohacell.com/en/performanceplastics8344.html

Phone # 870 234 0286 

The rohacell below was very thick and sturdy.  Perhaps it can make a good lightweight chamber.  It is not conducting so be carful of charge up effects.  
Rohacell 110 WF , CMS 01, Rev. G. Type 4 Grade B

== Kapton windows ==
== Gas connectors ==
== Gas Gaskets ==

Buna-N® A DuPont Dow Elastomers registered trademark brand name of a type of elastomer seal; butyl material which has excellent resistance to gas permeation; an early vacuum seal, generally displaced by Viton®.

http://www-hades.gsi.de/mdc/literatur/outgassing.ps

http://www.vacuumlab.com/Articles/Gas%20Loads%20and%20O-Rings.pdf

Permeation Rates for Air

BUNA-N =<math> 2.5 \times 10^{-7} \frac{torr \cdot liters}{sec \cdot linear inch}</math>

VITON =<math> 2.5 \times 10^{-8} \frac{torr\cdot liters}{sec\cdot linear inch}</math>

"The fact that Viton has an air permeation rate that is one order of magnitude lower than Buna-N shows one reason why it is used more and more often in high vacuum systems even though Buna-N's resiliency, as evidenced by the bounce test, makes it easier to achieve a leak-free seal. "

http://www.vacuumlab.com/Articles/Gas%20Loads%20Elastomer-Metal%20Seals.pdf 

=== Marco Rubber ===
====Vendor Contact====
Marco Rubber & Plastic Products, Inc.
334 Clark Street
North Andover, MA 01845  USA
Telephone:	800-775-6525
Fax:	978-688-6915

==== O-ring design====

http://www.marcorubber.com/gd-directory.htm

For example:

[[Image:MarcoRubbber_O-ringGroveDesign_gladstatic.jpg | 20px]]


another vendor

http://www.allorings.com/material_selection.htm


====candidate part numbers====
Gasket Cord: part# CB1000-2.36  ; a 2.36 outer diameter O-ring cord which we can use to make O-rings.  The O-grin groove should be 1.77 mm deep and you can use superglue to joing the ends of the cord.

Specifications

 

Compound#	Color	Hardness
Shore A	Tensile
Mpa (Psi)	Elongation %	22Hr C/S
@ 100C	Low Temp	High Temp
B1000	Black	70	15.0 (2,150)	400	10	–40°C(–40°F)	120°C(248°F)
* Buna-N is available in a wide range of Durometers and Colors,

=== Calculating the gaskets min radius of curvature===
<math>R = \frac{C E}{S}</math> ( inches)

;where  
:R= radius of curvature in inches 
:C= 1/2 the thickness of the material 
:E= modulus of elasticity 
:S= maximum fiber stress of yield stress of the material

==== Example for Buna-N====

C = 2.36 mm/2

E= Elongation/Tensile = 4/2150 (1/psi)

S =?

== Copper Clad Kapton ==


1.)
Gus Gustafson
DuPont Flexible Circuit Materials
14 T. W. Alexander Drive
Research Triangle Park, NC 27709
Phone: 919-248-5280


AP7156E: 2 mil (50 micron kapton, 9 mil double sided copper.  Need to etch the copper off of one side.

2.) Digikey; Copper foil tape.  You can put a layer of kapton on the sticky side to prevent it from outgassing too much

Item #   3M1194D-1FT-ND

== wave soldering ==
== Connectors ==
===SHV Panel Bulkhead===

Kings solder SHV Bulkhead Receptacle, Kings Part # 1707-1
[[Image:Kings1707-1_DESIGN.pdf]]

Kings Electronics <br>
1685 Overview Drive<br>
Rock Hill, SC   29730<br>
Toll Free: 1-888-909-5551<br>
Switchboard:  1-803-909-5000<br>

Min order is 1000 pieces = $1300

Astrix can do smaller orders

818-381-8353 ask for Monique
===BNC Female Panel Bulkhead===
[[Image:Amphenol_BNC_Panel_Bulkhead.pdf]]


=== VFAT input connector===
Panasonic P5KS 130 pin surface mount 6.5 mm mated heigth, 0.5 mm narrow pitch

https://panasonic-denko.co.jp/ac/e/control/connector/base-base/p5ks/attention/index.jsp

[[Image:VFAT_header_inputconnector.pdf]]

http://panasonic-denko.co.jp/ac/e/control/connector/base-base/p5ks/index.jsp

=== Precidip Connector===

20 pin single row 1.27 mm pitch connectors for back of 10 x 10 cm GEM charge collector

[http://www.westfield.co.uk Vendor:]

http://www.westfield.co.uk/tp/html/13.html
straight pin:  850-91-020-10-001

socket connector : 851-91-020-10-001

http://www.westfield.co.uk/tp/html/13.html

=Gas Flow=
==Vent line==
===connectors===
=== stainless steel tubing===
==flow meter==