Transcript Danfysik power supply temp coefficient

Role Sharing
between KEK and
SLAC
1. Performance of Demonstration power supply of KEK
2. Role sharing
3. R&D at NIRS
2nd ATF2 meeting
Role Sharing between KEK and
SLAC M.Kumada
danfysikN
hightechN
1. Demonstration
Power supply
takasago4/12
door opened at about 120 minutes
1.0004
takasago power
supply
current vs time
danfysikN
1.0003
1.0002
1.0001
1
0.9999
2nd ATF2 meeting
KEK and100
0Role Sharing between
50
SLAC M.Kumada
150
200
y = 1.0015 - 7.6606e-05x R= 0.92203
hightechN
danfysikN
y = 1.0014 - 7.2419e-05x R= 0.91769
takasago power
supply temp
coefficient
takasago4/12
7 5 ppm/degree
1.0002
hightechN
1.00015
1.0001
1.00005
1
17
2nd ATF2 meeting
17.5
18
18.5
Role Sharing between KEK and
SLAC M.KumadaTemp
19
19.5
20
normalized current2
y = 0.99994 + 3.1549e-06x R= 0.76155
april19DFK
3 ppm/degree
Door left Opened
with poor temp.reguartion
Danfysik power
supply temp
coefficient
1.00001
normalized current2
1.000005
1
0.999995
0.99999
2nd ATF2 meeting
0.999985
17.5
18
18.5
19
19.5
Role Sharing between KEK and
SLAC M.Kumada
temp.1
20
20.5
21
21.5
temp.1
temp.2
monitored temp
coefficient
april19DFK
Door left Opened
with poor temp.reguartion
22
21
temp.1
20
19
18
17
16
2nd ATF2 meeting
0
100
200
300
Role Sharing between KEK and
SLAC M.Kumada
minutes
400
500
600
temp.1
temp.2
Current vs
temperature
april19DFK
Door left Opened
with poor temp.reguartion
22
21
temp.1
20
19
18
17
16
0
2nd ATF2 meeting
100
200
300
Role Sharing between KEK and
minutes
SLAC M.Kumada
400
500
600
2. Role sharing
Responsibility Schedule person in charge
Phase -2
Power supply system
controllers
SLAC
bulk PS's
SLAC
modules
SLAC
cables from controller to modiles
SLAC
controller software
SLAC
system software
KEK
racks
SLAC
cooling fan if module has no fan
SLAC
performance test
SLAC/KEK
PB/Terunuma/MK
test equipments; oscilloscope..
KEK
MK
approval of Spec.
KEK/SLAC
PV/Terunuma/MK
Input AC cables
KEK
Terunuma/MK
cables from modules to magnets
KEK
Terunuma/MK
ethernet cables to controllers
KEK
Terunuma
Terunuma
Power cables
Control cables
interlock cables from magnets to controllers
KEK
Area
2nd ATF2 meeting
Terunuma
Urakawa
cable trays
KEK
Urakawa
air conditioning (cooling)
KEK
Urakawa
AC distribution box
KEK
Terunuma
Role Sharing between KEK and
SLAC M.Kumada
2. Role sharing
trigger, control, ethernet signals
KEK
Terunuma
from SLAC to Narita
SLAC
Terunuma
from Natita to KEK
KEK
Terunuma
training
SLAC
PB
cabling (power and control)
SLAC
checkout the system
SLAC/KEK
PB/Terunuma/MK
Commisioning
SLAC/KEK
PB/Terunuma/MK
Maintenance
SLAC
Operation
SLAC/KEK
Transportation
Phase -3
Installation
2nd ATF2 meeting
Role Sharing between KEK and
SLAC M.Kumada
PB/Terunuma/MK
3.
A Personal Wish
list of R&D at
NIRS
1. NMR controled B and Q power supply
2. Application of high performance to PIXE microbeam
- the scanning microbeam PIXE analysis facility at NIRS
- Study of possible Upgrade of Oxford Microbeams
OM2000
- Target- Resolution better than sub micron
3. Study of high RAS /HA
power supply in particle Cancer therapy application
2nd ATF2 meeting
Role Sharing between KEK and
SLAC M.Kumada
3.Question and answer list
1. What is the ambient temperature of the
facility where the power supplies will
operate?
2. Is there air conditioning available for
the racks and power supplies?
Terunuma: I assume it will be 20 degrees.
It is not discussed but it may be in the
range from 20 to 25 degrees. Accelerator
room is 25 degrees.
Yes
3. What is the interface (if any) for the
remote operation and monitoring of the
bulk power supply?
Terunuma: I think SLAC will use the
EPICS interface with Ethernet.
Kumada: Bulk power supply and Power
module should be controlled seamlessly.
Otherwise, it is difficult to say that the
system is HA.
4. What is the personnel protection
interface (if any)
Terunuma: No idea.
5. What is the magnet protection interface
(thermal switch to Ethernet controller?
2nd ATF2 meeting
Terunuma: For ATF, we use a thermal
switch and water flow switch. They are
connected the external interlock for power
supplies. ATF2 magnet is same as ATF’s.
Role Sharing between KEK and
SLAC M.Kumada
3.Question and answer list
6.Are there any corrector magnets?
no
7.Are the corrector magnets wound on the
same core as the main quad and dipole
windings? Mutual coupling concerns
Yes for Quadrupole
8. Two transductor or one transductor
power system?
yes
9. Does KEK want to monitor ground
current and trip off power supplies on
excessive ground current?
YES. I will not be surprised there are
high frequency common mode component.
I certainly support this idea.
10. If one transductor use 100 ohm
resistor to ground.
If two transductors, then monitor ground
current differentially.
In both cases the ground current is sent to
the Ethernet Controller.
yes
2nd ATF2 meeting
Role Sharing between KEK and
SLAC M.Kumada
3.Question and answer list
11. When does KEK want the SLAC
demonstration system?
We will discuss. What would you like to
study with it?
12. Should the demonstration system
include the rack?
We will discuss. (yes). Purchase in Japan.
13. What is the shipping address for the
demonstration system?
We will discuss. (no)
14. How will KEK control the Bulk
Power supplies?
15. Is there a layout that shows the
locations of the magnets and the power
supply racks?
2nd ATF2 meeting
It is not KEK. SLAC will make it.
Terunuma: The exact location is not
decided. It is along the beam line and
behind shields as I showed today. I will
send a CAD file of ATF area with DXF
format.
We will discuss on this topic
Role Sharing between KEK and
SLAC M.Kumada
3.Question and answer list
16.Who will approve the power
supply specifcations?
2nd ATF2 meeting
KEK meeting with Kumada
Role Sharing between KEK and
SLAC M.Kumada