WEP086

EPICS IOC off WindowsXP
Wi d
WindowsXP-based
XP basedb d Oscillosc
O ill cope forf Fast
F t BPM Data
D t Acquisition
Ai iti System
S tM. SatohMSatoh, T.
T Suw
wada K.
wada,
K Furukawa
A l t Laboratory,
Accelerator
L b t y, KEK
KEK,, Oh
Oho 1-1,1, T
Tsukuba,k b , Ib
Ibaraki
ki 305305-0801,0801, Japan
J p
Y. Hu
Brookhaven National Laboratory,
Laboratoryy, Upton
Upton,p
New York 11973,11973 U.S.A.
USA
T Kudou,T.
K d , S.
S KusanoK
Mi bi hi ElectricMitsubishi
El i S
System & S
Servicei CCoo Lo.,
LtdLtd,d T
Tsukuba
Tsukuba,k b IbIbaraki
ki 305305-0045
0045 Japan0045,
J
Performance test of the fast digital oscilloscope

OOverviewi• Non-destructive
Non destructive Beam Position Monitor (BPM)• used for Beam orbit feedback/ Beam energy feedback• Number of BPM: 94 (four strip-line type electrode)• Towards KEKB continuous injection/ PF Top
Top-upup⇒ We
W needd BPM datadacquisition
q i i i off 50 HzHD
DPO7104
DPO7104,, 4CH
4CH,, WiWindowsXP,dXP, P
Pentium4-3.4
i 4 3 4 GHz,GH , 2 GB memory)y)) forft local and remote accesstheaccess. In the local access test
test, the testssoftware
is running on the oscilloscope.
oscilloscope
yyThetest result shows that the acquisition speed is enough for
550-Hzmeasurement.
measurement
yIn the practical operation, we need 22-kyInk data length w/ 2CH.

・Former BPM DAQ system: Old digital oscilloscope/GPIB
and VME
VME. The maintenance work is very difficult since
the oscilloscope is discontinued product.
product

Ch1Ch2Ch3Ch4300250

Ch1Ch2Ch3Ch430020015010025020015010050500EPICS-IOC350350DAQDQ Sp
peed[Hz]]=> Top-up
Top up (si( i ce A(sinceAprilp il 2009)009)• 3 GeV
G V e- ((0.1(0 1 nC)C)) forf PF-AR
PF AR (S((Scheduledh d l d IInjection
j i 2/d2/day)y))yWeyWeW testedd theh speed
d off waveform
facquisitioni i i (TektronixDAQD
Q Speed [Hzz]• KEK Injector Linac provides four different kinds of beam
• 8 GeV
G V e- ((1 nC)/C)/) 3.535GGeVV e++ (1( nC,C, pprimaryiy e- 7 nC)
C))
f KEKB (Continuously)for((C tily))• 2.5
2 5 GeV ee- (0.1(0 1 nC) for PF (Scheduled Injection 2/day)

0050 100 150 200 250 300 350 400 450 500
Data length [k[k-points]
points]050 100 150 200 250 300 350 400 450 500
Data length[k-points]

Beam Orbit panel
pexamplesp⇒ New system: Fast digitali i oscilloscopei((WindowsiXPXPb d)) w// EPICS (Ebased)((Experimentalp it l Physics
Phy i andd Industrial
I d t i l
C t lSControlSystem)yt )Former BPM DAQ
Q SystemyMonitor Station

New BPM DAQ System

Beam Test with 50 Hz repetition

Linac Network

B m charBeamc rge [nCC]

Digital Oscilloscope (5GS/s)
VME/ OS9yx

GPIB

Cable Combiner Box
8ch Combiner
8ch-Combiner

KEKB e+ mode
(primary(py e- 7 nC))
KEKB e- mode(e 1 nC)(ePF mode(e 0(e0.11 nC)

8 h C bi
8ch-Combiner

Time [[ms]]*20 ms (50 Hz)
H )20 ms (50 Hz)

40Li
LinacTunnelTl* Delay Cable (7-ns)(7 ns)

BPM

2 hours3530
25201510

10 ms ((Windows timestampp ggranularity)y)

500100000

200000300000B
Beamshoth t numberbVMEBeeamm charge [nnC]]

T me iintterv
Timvallbeetw
weeen beab amm shhott [mmss]

Klystron Gallery

20 ms (50 Hz)

1098
7
6
5
4
3
2
10

KEKB e++ mode
dKEKB ee modePF e- mode

2 hours

030000

60000

90000

120000Beam shot number

Summaryy and ffuture pplan• TheThe newew BPM DAQ
Q syssysteme w
wass developeddeved lopedd forfo theheKEK IInjector
j t LiLinac.
•A new system is the WindowsXP
WindowsXP-based
based fast digital
oscilloscope Each of them can work as a EPICS.
oscilloscope.
EPICS
•All
All of 23 BPM
BPM-DAQDAQ systems have been alreadyPhotograph of Fast Digital O
Oscilloscope replaced
pl d bbyy new one,, andd usedd for
f dailyd ily operation.
p ti(Tektronix DPO7104)•They all work very stable.
stable•A similar system has been available for the KEKB-BTKEKB-BT.

Oscilloscope

Cable Combiner BOX
Photograph of Former System•EPICSEPICSCS record
eco d fforo thehe averaging
ve gi g datadisis underu dedd l p
development.
t