|
Size: 369
Comment:
|
Size: 670
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = Cryocooler P51 = measured behind EX0 rack [[attachment:ex0_2.jpg|jpg]] |
= Cryocooler P53 = measured near Cryocooler P53 [[attachment:cryocooler.jpg|jpg]] |
| Line 5: | Line 5: |
| There is noise in 60-150 MHz. | measured in 6 situations || situation || small cryocooler || big cryocooler || FFU filters & fan for EXC chamber || || 1 || off || off || on || || 2 || on || off || on || || 3 || on || on || on || || 4 || on || on || off || || 5 || off || off || off || Situation 6 is situation 5 with an ele-mag protection sheet |
Cryocooler P53
measured near Cryocooler P53 jpg
measured in 6 situations
situation |
small cryocooler |
big cryocooler |
FFU filters & fan for EXC chamber |
1 |
off |
off |
on |
2 |
on |
off |
on |
3 |
on |
on |
on |
4 |
on |
on |
off |
5 |
off |
off |
off |
Situation 6 is situation 5 with an ele-mag protection sheet
The peak of the noise is around 112.5 MHz.
0-250 MHz
0-5 MHz
50-150 MHz
110-115 MHz
