TM2 has been helium pressure tested in ITW and TCS. They are both tested with 70psi helium, each circuit for 3minutes.
The leak detector base leak rate: 0.0X E-9 atm.cc/sec, base pressure 0.0 xE-4 torr for both ITW and TCS. The test results are:
| circuit |
TCS Test Result (atm.cc/sec) 2016-03-021 |
ITW Test Result (atm.cc/sec) 2016-03-02 |
TCS Test Result (atm.cc/sec)
2116-11-24
|
| Target Oven + |
5.2 X E-9 |
1.7 X E-8 |
2.0 X E-9 |
| Target Oven - |
5.6 X E-9 |
8.7 X E-9 |
2.2 X E-8 |
| Tube Heater + |
3.7 X E-8 |
1.7 X E-8 |
2.3 X E -8 |
| Tube Heater - |
1.9 X E-8 |
1.5 X E-8 |
8.2 X E-8 |
| Coil 2 (P-Q) |
7.2 X E-8 |
6.7 X E-8 |
5.4 X E-9 |
| Coil 1 (R-U) |
1.4 X E-8 |
1.3 X E-8 |
2.4 X E-9 |
| MSP |
2.3 X E-7, SECOND TIME 2.5 X E-7 |
4 X E-9 |
2.4 X E-7 |
| HS |
NO TEST, LINE IS OPEN TO VACUUM. |
GOOD, NO RESPONSE ON LD |
Good, 0.0 X E-9 |
| EE |
4.3 X E-9 |
GOOD, NO RESPONSE ON LD |
3.7 X E-8
|
| window |
4.5 X E-9 |
GOOD, NO RESPONSE ON LD |
Good , 0.0 X E-9 |
| GE |
NO TEST, CONFIRMED IN SHC |
MIDDLE OF E-6 RANGE |
No test. Blanked |
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2016-11-24: Checked again and added result into this elog. No essential change has been found. MSP still has the biggest leak rate. David |