|
Size: 363
Comment:
|
Size: 775
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 1: | Line 1: |
| = EX0 rack = 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 || |
| Line 7: | Line 13: |
| The peak of the noise is around 112.5 MHz. | Situation 6 is situation 5 with an ele-mag protection sheet |
| Line 9: | Line 15: |
| = 0-250 MHz = {{attachment:ex0_0_250_2.jpg|jpg}} |
== situation 1 == === 0-250 MHz === {{attachment:cryocooler1_0_250.jpg|jpg}} === 0-20 MHz === {{attachment:cryocooler1_0_20.jpg|jpg}} === 0-5 MHz === {{attachment:cryocooler1_0_5.jpg|jpg}} |
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
situation 1
0-250 MHz
0-20 MHz
0-5 MHz
0-5 MHz
50-150 MHz
110-115 MHz
