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.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
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
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
R= CE/S( 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 File:Kings1707-1 DESIGN.pdf
Kings Electronics
1685 Overview Drive
Rock Hill, SC 29730
Toll Free: 1-888-909-5551
Switchboard: 1-803-909-5000
Min order is 1000 pieces = $1300
Astrix can do smaller orders
818-381-8353 ask for Monique
BNC Female Panel Bulkhead
File: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
File: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/tp/html/13.html straight pin: 850-91-020-10-001
socket connector : 851-91-020-10-001