B.1c1_d25-m-4190.pdf

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Attached to
Be Windows for BLIP
Solicitation number
431610
Issued by

About this file

This document is an engineering drawing for a beryllium dome window to be used in a mass spectrometer. Key details include:

  • The drawing specifies dimensions, tolerances, notes, and views for a hemispherical beryllium dome window with an aluminum frame that is to be electron beam welded and leak checked to stringent requirements. The dome window will be fabricated from beryllium grade PF-60 or equivalent and welded to an aluminum 6061 or 5083 frame 0.012 inches thick. After fabrication, the part must be bagged or tagged with the drawing number per MIL-STD-130 and be leak tight to no more than 1x10-10 atm cc/sec of helium. Welded assemblies must also be bakeable to 300 degrees Celsius.

The related federal contract opportunity is a solicitation from the Department of Energy Office of Science seeking beryllium windows for the Brookhaven National Laboratory's Beam Line Instrumentation Project mass spectrometer.

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Text version

A

B

C

D

6 5

G

E

F

NOTES:

H

8 6 5

24 3 1

A

D W G

N O

R E V S H T

O F

C

D

2 4 3

G

E

F

H

CREO

SCALE:

DRAWING NUMBER:

FINISH

APPLICATION

CATEGORY

Q.A.

UNLESS OTHERWISE SPECIFIED

DIMENSIONS ARE IN INCHES

USED ON DRAWING NO. QTY. PER ASS'Y.

BREAK SHARP EDGES

ANGULAR TOLERANCE 1

DECIMAL TOLERANCES

.X .030

.XX .015

.XXX .005

ACCORDANCE WITH

ASME Y14.5

INTERPRET IN GENERAL

E

SIZE

SHEET OFWEIGHT:

REV.

.03 MAX. MIN. 015

3.500

9.921

8.50

2X 5.00

8.245 +.003 -.000

9.5

9.921

1.800

.125

4.500

APERTURE

8.00

8.756.00

ALODINE

COATING

6.00

8.250 +.005 -.000

9.00

9.562

.810

.030

.151 +.000 -.005

.360

.015

.130

.360

.620

2X R.100

70.0 70.0

.030

.160

4X R.125

5.000 +.005 -.000

FRAME

.070

4.990 +.000 -.005

BE

DOME

(3.63) (.265)

( 8.75)

D M

A

REVISION APPROVALS

SUPVENGDESCHKBYDATEDESCRIPTIONECN NO.REV

------INITIAL RELEASE-A

BLIP

HEMISPHERICAL DOME WINDOW

PF-60 DOME WINDOW

D25-M-4190 1/1

N/A A

3.4

AS NOTED

N/A

1 1 A2DEPARTMENT

CHAIR

SAFETY / RSC

Q.A. C. GALDAMEZ 9/23

DIVISION

HEAD J. TUOZZOLO 9/23

CEE / CME

SUPERVISOR

APPROVAL D. WEISS 6/23

ENG / PHY

APPROVAL S. NAYAK 6/23

DESIGN

APPROVAL A. ARNO 6/23

CHECKED

BY S. RESTMEYER 6/23

DRAWN BY H. LOVERA 6/16/23

1. MATERIAL:AS NOTED

2. FABRICATE AND LEAK CHECK IN ACCORDANCE WITH BNL SPEC CAD-1119

3. BAG OR TAG PART WITH DRAWING NUMBER IN ACCORDANCE WITH MIL-STD-130.

4. ASSEMBLY TO BE MASS SPECTROMETER LEAK TIGHT WITH NO LEAKS GREATER THAN 1X10-10 ATM CC/SEC OF He

5. EB WELDED ASSEMBLIES MUST BE BAKEABLE TO 300 C

.005 .005

ISOMETRIC VIEW

FOR REFERENCE ONLY

C

C C C

SECTION A-A

.015 B .015 A

SEE DETAIL C

SR 2.23

(INSIDE)

DETAIL C

SCALE 2/1

SEE DETAIL B

ALUMINUM 6061 OR 5083

FRAME

.012" THICK BERYLLIUM PF-60 OR

EQUIVALENT GRADE

SR 2.23" BE DOME EB WELDED TO

ALUMINUM 6061 OR 5083 FRAME

DETAIL B

SCALE 4/1

(BE DOME)

EBW

A

B

COLLIDER-ACCELERATOR DEPARTMENT

UPTON, N.Y. 11973

BROOKHAVEN NATIONAL LABORATORY

PRELIMINARY

Sheet 1
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