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* '''Noise investigation about FFUs in the corner stations by an operator''' | === Noise investigation about FFUs in the corner stations by an operator === 0. Worker * Measurement 2-4 * Team1 : Furuta, Kimura, Tamori (Xend) * Team2 : Hayakawa, Takahashi, Yoshimura (Yend) * Team3 : Yokozawa, Mori(Xfront) * Team4 : Washimi, TTanaka(Yfront) * Team5 : Miyoki, Yokozawa, washimi, (Sensitivity Taking, Instruction to All) * Team6 : VIS people (temperature drift, suspension condition, in the control room) * Measurement 5 (Standby at) * Washimi : (IFI) * Tamori : (PRM) * TTanaka : (MCE) * Kimura : (PR3) * Yoshimura :(BS, PR2) * Hayakawa : (SR2, SR3) * Takahashi : (SRM OMC) * Mori: (Pre-Room FFU switch for PSL) * Yokozawa : (Pre-Room FFU switch near PR3, BS) * Miyoki: SR cooler * Furuta : BS cooler * non : IYC cooler * Measurement 6 * Team1 : Furuta, Kimura, Hayakawa, Takahashi (CS) * Team2 : Yokozawa, Mori(Xend) * Team3 : Washimi, TTanaka(Yend) * Team4 : Miyoki + VIS people (Control room, Sensitivity monitor, temperature drift, suspension condition, etc) * Zoom1 connection or PHSで坑内一斉放送? * 検出きのそばで大きな声を掛け合うのは得策ではない。 |
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* 4 people stand by IEXYV FFU switchs. | * Each 3 people stand by IEXYV FFU switchs. |
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* 4 people stand by IEXYC FFU switchs. 10 are near the KOACH, 14 near the Transmission area. | * Each 3 people stand by IEXYC FFU switchs. 10 are near the KOACH, 14 near the Transmission area. |
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* 4 people stand by IEXYA FFU switchs. | * 3 people stand by IEXYA FFU switchs. |
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* 5 people stand by (MCE, IFI, PRM), (PR3, PR2, BS), (SR2, SR3), (SRM OMC), and Pre-Room FFU switchs. * Turn off almost FFUs at the same time by 4 people, except for pink one. |
* 11 people stand by (MCE, IFI, PRM), (PR3, PR2, BS), (SR2, SR3), (SRM OMC), and Pre-Room FFU switchs. * Turn off almost FFUs at the same time by 11 people, except for pink one. |
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* Take sensitivity uegently if possible. | * Take sensitivity urgently if possible. |
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* '''Vacuum pump stopping``` * We want to stop vacuum pumps one by one * FFU would be turned on * If temperature or vacuum pressures drastically changed, the experiments stopped * two people for Xend, two people for Yend, Four people CS * Stop the Vacuum pump one by one with instruction of Miyoki-san or Saito-san * Maximum experiment time is two hours or 5p.m. === Other Items === |
Plans for trial just after ER
Noise investigation about FFUs in the corner stations by an operator
- Worker
- Measurement 2-4
- Team1 : Furuta, Kimura, Tamori (Xend)
- Team2 : Hayakawa, Takahashi, Yoshimura (Yend)
- Team3 : Yokozawa, Mori(Xfront)
- Team4 : Washimi, TTanaka(Yfront)
- Team5 : Miyoki, Yokozawa, washimi, (Sensitivity Taking, Instruction to All)
- Team6 : VIS people (temperature drift, suspension condition, in the control room)
- Measurement 5 (Standby at)
- Washimi : (IFI)
- Tamori : (PRM)
- TTanaka : (MCE)
- Kimura : (PR3)
- Yoshimura :(BS, PR2)
- Hayakawa : (SR2, SR3)
- Takahashi : (SRM OMC)
- Mori: (Pre-Room FFU switch for PSL)
- Yokozawa : (Pre-Room FFU switch near PR3, BS)
- Miyoki: SR cooler
- Furuta : BS cooler
- non : IYC cooler
- Measurement 6
- Team1 : Furuta, Kimura, Hayakawa, Takahashi (CS)
- Team2 : Yokozawa, Mori(Xend)
- Team3 : Washimi, TTanaka(Yend)
- Team4 : Miyoki + VIS people (Control room, Sensitivity monitor, temperature drift, suspension condition, etc)
- Zoom1 connection or PHSで坑内一斉放送?
- 検出きのそばで大きな声を掛け合うのは得策ではない。
- Preparation
Make marks on FFU switches that are not turned off in MCE, IFI, PRM, PR3, PR2, BS, SR2, SR3, SRM, OMC with "Pink Tape".
(Operated FFU / Total FFU) table list is below.
130 FFUs will be turned off. This corresponds to 26kW heating power.
26kW corresponds to about two water cooler cooling power (2 x 14kW). We expect balance.
Area Name
MCF
MCE
IFI
PRM
PR3
PR2
BS
SR2
SR3
SRM
OMC
Present (151)/Total(180)
1/16
2/16
12/12
12/12
16/16
20/20
20/20
20/20
16/16
16/16
16/16
several FFUs are disorder
Remained in Test(35)/Total(180)
1/16
2/16
2/12
2/12
4/16
4/20
4/20
4/20
4/16
4/16
4/16
- Preparation
IEXYV
IEXYA
IEXYC(1F)
IEXYC(2F)
EXYT
Present(2)/Total(10)
Present(2)/Total(10)
Present(2)/Total(10+1)
Present(4)/Total(14)
Present(3)/Total(3)
<--- KOACH are not included
Corner Station (1F)
180+2x24+ 2x10 + 10(Pre-Rooms) = 258 (~ 51.6kW )
IEXYV
- Take a sensitivity by an operator.
- Each 3 people stand by IEXYV FFU switchs.
- Turn off remamined two FFUs at the same time.
- Take the sensitivity again before alignment will change.
- Turn on two FFUs that used to be turned on.
- If you see any change in sensitivity, we recheck one by one for IEXYV.
IEXYC(1/2F) and Transmission Area
- Take a sensitivity by an operator.
- Each 3 people stand by IEXYC FFU switchs. 10 are near the KOACH, 14 near the Transmission area.
- Turn off remained FFUs at the same time.
- Take the sensitivity again before alignment will change.
- Turn on FFUs that used to be turned on.
- If you see any change in sensitivity, we recheck one by one for IEXYC-1F/2F.
IEXYA
- Take a sensitivity by an operator.
- 3 people stand by IEXYA FFU switchs.
- Turn off remained two FFUs at the same time.
- Take the sensitivity again before alignment will change.
- Turn on two FFUs that used to be turned on.
- If you see any change in sensitivity, we recheck one by one for IEXYA.
For Corner station 1F
- Method(1)
- Take a sensitivity by an operator.
- 11 people stand by (MCE, IFI, PRM), (PR3, PR2, BS), (SR2, SR3), (SRM OMC), and Pre-Room FFU switchs.
- Turn off almost FFUs at the same time by 11 people, except for pink one.
- Take the sensitivity again before alignment will change.
Check the difference btw FFU operation and almost no FFU operation.
- Method(2): If the alignment change is too huge for us to take a sensitivity.
- We turn off IYC-C and BS-C coolers at the same time when we turn off 130 FFUs.
- Take sensitivity urgently if possible.
- Check the temp changes in the corner station.
- If the temp seems to go down rapidly, we enlarge heating power. If the temp gose up rapidly, we turned on IYC-C again and heat up by heaters.
- we expect do some try and error for several hours if we encounter serious temp change.
- If alignment comes back, take sensitivity.
- If it will take too much time to recover FPMI, we give up this trial.
- Method(1)
Vacuum pump stopping`
- We want to stop vacuum pumps one by one
- FFU would be turned on
- If temperature or vacuum pressures drastically changed, the experiments stopped
- two people for Xend, two people for Yend, Four people CS
- Stop the Vacuum pump one by one with instruction of Miyoki-san or Saito-san
- Maximum experiment time is two hours or 5p.m.