TOSHIBA

Transcription

TOSHIBA

No. 2A201-384E”C
TOSHIBA
SITE PLANNING
FOR
WHOLE-BODY
X-RAY CT SCANNER
4
steion
MODELS
MANUAL
SERIES
TSX-021A,
TSX-OZIB
(2A201-384E*C)
TOSHIBA
@ TOSHIBA
CORPORATION
CORPORATION
ALL RIGHTS RESERVED
1998
No.
9.
9.1
AIR
CONDITIONING/WATER
Air
Conditioning
(1)
Air
conditioning
SUPPLY AND DRAINAGE
2A201-384E
WORKS
system
Refer to calorific
values
and environmental
requirements
of each
room given
in appended
table
1 and install
an air conditioning
system which satisfies
the given
environmental
requirements.
Insure
appropriate
air flow in the rooms so that
temperature
distribution
is uniform.
Take extreme
care with
air conditioning
Temperature
fluctuation
in this
room
in the specification.
The temperature
throughout
year.
It is important
to
calibration
data is acquired
as when
It is recommended,
however,
that
the
approximately
26% for patient
comfort.
in the scanning
room.
must be within
the range given
setting
need not be constant
have the same temperature
when
examinations
are performed.
temperature
be maintained
at
The temperature
in the scanning
room should
be within
the tolerance
1.5 hours before
the first
examination
every morning.
When the door
is opened,
for example,
to bring
the patient
in or out,
the
temperature
can be outside
the tolerance
for a short
time
(approximately
3 minutes).
The appropriate
temperature,
however,
should
be restored
until
scanning
of the next patient
is started.
In addition,
take care that
the temperature
near the floor
does not
get too low or high,
because
air near the floor
is taken
into
the
gantry.
(Check for the presence
of a boiler
room downstairs
or if
air is cold near the floor
because
the scanning
room is located
in
the basement.)
9-1
No.
Timer
ON
Temperature
CAUTION:
(2)
Air
conditioning
ON
KPC
scanning
room
Starting time
conditions
in
the
The scanning
room must be provided with an independent
air
conditioning
system.
Even if the room is maintained
within the permissible
temperature
range, gradual temperature
shifts (for example, a slow increase in
room temperature
from morning to evening) may adversely
affect
system performance.
Therefore, the room temperature
must be under
constant
control as shown in the above figure.
Dust
Since the inside
of the console
extreme
care to keep dust from
9.2
Tolerance:
2A201-384E
Water
A water
however,
Supply
is
the
easily
console.
affected
by dust,
take
and Drainage
supply
it is
and drainage
recommended
facility
is not
that
a washstand
9-2
required
for
be provided.
this
system,
No.
10.
APPENDED
ZAZOl-384E
TABLES AND FIGURES
(1)
Appended
table
(2)
Appended
tables
2-l
(3)
Appended
tables
3-l
(4)
Appended
figure
(5)
Appended
figure
(6)
Appended
figure
(7)
Appended
figures
(8)
Appended
figure
(9)
Appended
(10)
1
:
Heat generation
environmental
and 2-2
:
External
to
:
List
1
:
External
dimensions
gantry
and required
bringing-in
entrance
2
:
System layout
space required
consideration
3-3
3
by units
conditions
dimensions
of
and
and mass
inter-unit
cables
and mass of
size of the
planned
taking
for maintenance
the
into
:
Pit
:
Power
supply
5
:
Cable
connections
figure
6
:
Inter-unit
Appended
figure
7
:
Floor
resin
(11)
Appended
figure
8
:
Gantry
(12)
Appended
figure
9
:
Grounding
the gantry
and anchoring
positions
and the patient
couch
(13)
Appended
figure
10
:
Layout
couch
the
(14)
Appended
figure
11
:
Console
(15)
Appended
figure
12
:
Speaker
(16)
Appended
figure
13
:
Patient
(including
(17)
Appended
figure
14
:
Video display
the patient
(18)
Appended
figure
15
:
System
4-l
to
4-4
10-l
layout
the
example
system
distances
levelling
work
and patient
of
and patient
camera
and stand)
monitor
transformer
epoxy
couch
gantry
monitoring
lens
using
for
monitoring
(CETF005B)
of
No.
APPENDIX
1
APPENDED
Appended
table
Names of rooms
and units
1. Scanning
Heat
FIGURES
AND OUTLINE
generation
Maximum heat
generation*’
by units
(3.0)
(10800)
8.9
32070
2.7
9720
I 0.5
1800
1 0.3
1080
2. Scan control
room
(2.7)
(9720)
(2.7)
(9720)
0 Console
2.7
9720
2.7
9720
Gantry
l
Patient couch
Maximum
scanning
heat generation
is performed
Normal
heat
performed.
at
generation
1 kW = 860 kcal/h,
1 cal
*3
A temperature
operated.
O°C to
the
heat
= 4.19
40°C is
that
conditions
Environmental
Temperature”
(“C)
1
A-l
(%)
40% to 80%
(No condensation)
40% to 80%
(No condensation)
generated
when continuous
rating
of the unit.
generated
when
scanning
units
are
J
permissible
humidity
I
16°C to 28°C
is
conditions
Relative
20°C to 26°C
Tolerance: 52°C
is the heat that
is
the maximum output
is
*2
from
and environmental
WV [kJ/hl
[kW] [kJ/h]?
(33870)
l
DRAWINGS
Normal heat
generation*’
(9.4)
*1
room
1
TABLES,
ZAZOl-384E
if
the
not
is not
No.
Appended
Note:
table
The values
in angle
mass for multislice
2-l
External
brackets
system.
(< >) are
T
Unit name
Gantry (with cover)
Patient couch
dimensions
and mass
external
dimens
.ons
I-
External dimensions
Width (mm)
Depth (mm)
Height (mm)
1970
c 1970>
860
<890>
1760
< 1760>
620
Navibox
the
480
<lOlO>
ZAZOl-384E*B
and
Mass (kg)
1300
cl 300>
2390
390
330
760
e420>
700
<700>
220
<135>
Keyboard
574
247
90
3
21-inch monitor
496
520
419
33
17-inch monitor
404
450
426
20
Speaker
140
135
200
2
Appended
table
2-2
External
dimensions
External
Unit name
Patient monitor
Camera
(including
System transformer
lens and stand)
Width (mm)
and mass
(optional)
dimensions
Depth (mm)
Height (mm)
Mass (kg)
225
260
240
6
105
380
315
4
800
770
980
550
A-2
Appended
Power
table
3-1
List’of
inter-unit
cables
(l/2)
cables
-
Cable
No.
Wiring
pit
PO1
Connected
to: (1)
Connected
to: (2)
System
trans.
Console
Standard
length
(ml
Eff ective
len gth
-(m: 1
a
10
System
trans.
Gantry
a
11
P
?
w
System
trans.
Gantry
a
11
P
Gantry
Console
14
12
I
L
3 cores x 5.5
17.5
1.5 while connecting to (1)
Connector
diameter
(mm)
Solderless contact while
connecting to (1)
connecting to (2)
15
3 cores x 5.5
17.5
connecting to (1)
Open wire while
connecting to (2)
15
3 cores x 35
35.2
connecting to (1)
Open wire while
connecting to (2)
PO4
20
Outer cable
diameter
(mm)
PO3
Number of
Vlaximum
cores x section
ength (m) area (mm’)
PO2
Retract
length (m)
19
6 cores x 0.75
11.5
connecting to (1)
Connector (28 x 21 x 28)
plus solderless contact
Remarks
Appended
Power
table
3-1
List’of
inter-unit
cables
(2/2)
cables
Connected
to: (1)
Connected
to: (2)
Standard
length
(m)
Fffective
ength
:m)
3
Power box
Retract
length (m)
?.5 while connecting to (1)
Vlaximum
ength (m)
Number of
cores x section
area (mm2)
3uter cable
diameter
:mm)
Connector diameter
(mm)
5
3 cores x 35
35.3
connecting to (2)
15
1 core x 35
12.2
connecting to (1)
Power box
EOO
P
?
c-
E02
i
P
-I-
Power box System
trans.
Power box
Console
5
15
1.5 while con
netting to (1)
connecting to (2)
5
1 core x 35
11.94
connecting to (2)
27
1 core x 5.5
4.4
connecting to (1)
0.5 while con
netting to (2)
13
1.5 while con
netting to (1)
0.5 while con.
netting to (2)
connecting to (2)
Remarks
Appended
Signal
table
3-2-l
List
of
inter-unit
cables
(TSX-021A/lC,
lD,
/2C,
cables
Cable
No.
/Wring
Iit
so1
S
Connected
to: (1)
Engcted
Standard
length
Cm>
Effective
length
0-N
Console
Gantry
14
12
Retract
length (m)
Number of
Maximum
cores x section
length (m) area (mm2)
19
50 cores x 0.08
shielding
Outer cable
diameter
(mm)
12.3
so2
S
Console
Gantry
14
12
Console
diameter
(mm)
while connecting to (1)
19
36 cores x 0.08
shielding
11.3
(a) Gantry
14
12
19
3 cores x 0.18
shielding
4.2
Connector ($29 x 52)
(b) Speaker
(Gantry)
14
12
1.5 while connecting to
(2)-(a)
19
2 cores x 0.5
shielding
5.1
while connecting to (2)-(a)
(c) Speaker
(C-room)
11
9
1.5 while
connecting to
G?-(b)
11
2 cores x 0.5
shielding
5.1
?
UI
S
Connector
so3
2D and TSX-021B)
r-r
W-(c)
Remarks
Appended
Signal
Cable
No.
table
3-2-2
List
of
inter-unit
cables
(TSX-021A/3C,
/3D:
multislice
systems)
cables
Niring
Iit
Connected
to: (1)
Connected
to: (2)
Console
Gantry
Standard
length
Cm>
Effective
length
Cm>
Retract
Maximum
ength (m)
length (m)
Number of
cores x section
area (mm2)
Outer cable
diameter
(mm>
50 cores x 0.08
shielding
12.3
Connector
diameter
(mm)
I
so1
14
12
IO.5 while connetting to (1)
19
I
Console
Gantry
14
12
19
36 cores x 0.08
shielding
11.3
Console
(a) Gantry
14
12
(b) Speaker
Gantry)
14
12
(2)-(a)
(c) Speaker
(Groom)
11
9
1.5 while
connecting
(2)-(b)
to
I
19
3 cores x 0.18
shielding
4.2
19
2 cores x 0.5
shielding
5.1
while connecting to (2)-(a)
11
2 cores x 0.5
shielding
5.1
ww
Console
Gantry
14
12
I
26 cores x 0.08
10.0
Remarks
Appended
Cables
Cable
No.
attached
to
Wiring Connected
/pit
/to: (1)
the
table
3-3
List
of
inter-unit
cables
gantry
Connected
1to: (2)
Standard
length
(ml
Effective
length
ON
Retract
length (m)
Maximum
length (m)
Number of
cores x section
area (mm’)
Outer cable
diameter
(mm)
Connector
diameter
(mm)
Remarks
FCS12
S
Gantry
Patient
couch
-
-
(1) connected
inside gantry
FCP40
P
Gantry
Patient
couch
-
-
Compound cable
(1) connected
inside gantry
FCP39
P
Gantry
-
-
FCEOI (
E
1Gantry
(;:;;;t
-
-
-
I - I
4 cores x 0.5
-
6.5
Compound
cable
I
1 core x 8.9
7.8
I
connecting to (2)
(1) connected
inside gantry
No.
Recommended
values
for
bringing-in
2A201-384E"B
route
Door
height
1860 mm or more
Door
width
980 mm or more
Mass:
*1:
Appended
This dimension
systems).
figure
1
is
890 mm for
External
dimensions
and required
size
A-7
of
TSX-021A/3C,
and mass of the
the bringing-in
/3D
1300 kg
(multislice
gantry
entrance
No.
(1)
Since the scanner
front
mm for opening/closing
cover opens
the cover.
(2)
Provide
a clearance
the LCSR. MUDAT.
of
at
least
600 mm behind
(3)
Provide
a clearance
of
at
least
700 mm for
KGTS.
(4)
Provide
etc.
a clearance
of
at
least
350 mm for
servicing
(5)
Provide
a clearance
couch for servicing
(6)
Provide
a clearance
of
the front
for servicing
(7)
It is desirable
the headrest.
xl>
<2>
<3>
<4>
Gantry
Patient
Patient
Console
couch
monitoring
Appended
Note:
to
of at least
the patient
outward,
provide
the
a clearance
scanner
400 mm from
couch.
the
rear
at least
500 mm with
the console.
the
Navibox
reserve
a clearance
of more
than
2A201-384E"B
for
the
servo
edge
of
pulled
400 mm for
of
1500
servicing
amplifier
the
patient
out
toward
the
use of
system
figure
2
System layout
for maintenance
The console
<4> above is for
For the console
for multislice
planned
into
single-slice
systems,
A-8
taking
the
consideration
space
systems.
refer
to appended
required
figure
11-2.
No.
EZ7ZZZZA
I]
<l>
<2>
<3>
<4>
Gantry
Patient
Patient
Console
couch
monitor
Power supply pit
Signal pit
.ng system
Appended
Note:
ZAZOl-384E*B
figure
The console
<4> above is for
For the console
for multislice
3
Pit
layout
single-slice
systems,
A-9
examp .e
systems.
refer
to appended
figure
11-Z.
Nominal
Voltage 200 V 75 kVA (Actual load 62 kVA)
600 V, IV wire used
Conduit wiring
r
0
1-0
20
30
40
70
60
50
80
sectional
90
area for the wiring cables
100
Distance between the power receiving transformer
and the power distribution board (unit: m)
Appended
figure
4-1
Power
supply
system
(mm21
Voltage 2dO V
75 kVA (Actual load 62 kVA)
Nominal
sectional
area for the wiring cables (mm2)
600 V, 3-core CV wire used
Conduit wiring
60
/
Transformer
capacity
150 kVd
4
100 kVA
75 kVA
3
2
40
50
60
70
80
90
Appended
figure
4-2
Power
supply
system
Nominal
600 V, IV wire used
Conduit wiring
sectional
area for the wiring cables (mm’)
Transform
2
1
40
20
100
60
50
Appended
figure
4-3
Power
supply
system
Conduit wirina
Nominal
sectional
area for the wiring cables
60
/
Transformer
4
capacity
150 kVA
100 kVA
75 kVA
?
P
w
3
2
1
Appended
figure
4-4
Power
supply
system
600 V, IV wire used
Conduit wiring
Transformercapacity
Nominal
sectional area for the wiring cables (mmZ)
150 kVA
100 kVA
75 kVA
50 kVA
70
90
100
Appended
figure
4-4A
Power
supply
system
600 V, 3 core-CV wire used
Conduit wiring
Transformercapacity
Nominal
sectional area for the wiring cables (mm’)
150 kVA
100 kVA
75 kVA
50 kVA
?
t:
m
3.
50
60
70
80
90
100
Appended
figure
4-4B
Power
supply
system
Nominal
600 V, IV wire used
Conduit wiring
70
60
80
sectional
area for the wiring cables (mm2)
90
100
Appended
figure
4-4C
Power
supply
system
Nominal
Conduit wiring
sectional
area for the wiring cables (mm’)
60
/
?
t;
u
Appended
figure
4-4D
Power
supply
system
[COLOR
: BLACK]
rp
SO3 : (CX70-02726-I)
[CNN 41 _
[CNN I]
1
PO0
tEP 11 C
PO2 : (PX70-02582-I)
EOI : (PX70-02585-I)
C
-j ~2OW
I 3 [El
EOO -a
ITB 21
I]
POWER
Box
c
E
E02
PO1:(CX70-02724-I)
lTB 11
12ow [
[CNN 21
[CN 4561
[CN 505]
[GTSXC]
PO4 : (CX70-02735-l)
[CNN 51 -
[
PAS1
SO2 : (CX70-02731-I)
[CNN 21 -
[TBII
[INTERCOM]
SO1 : (CX70-02730-I)
_
[CN 5171 _
[EP 11 _-
*POWER(FCP40:CX77-96518-1)
]
[CNN l]*l)
*EARTH(FCEOl :CX77-96579-1)
O IFCGB~~
CGGT
[COLOR:BLUE]
Note:
Appended
figure
The FCPOO and FCP39 cables
are connected
to CNNl of CBTB.
The CNNl connector
is mounted
to FCP40 and the FCP39 cable
5-1
Cable
connections
(TSX-OZlA/lC,
lD,
is
ZC, 2D and TSX-021B)
connected
later.
[COLOR
SO3 : (CX70-02845-l)
[CNN4]
[INTERCOM]
SO1 : (CX70-02800-I
[CNNI]
)
PAS1
SO2 : (CX70-02731-I)
[CNN2]
[GTS . XC]
SO4 : (CX70-02801-I)
[CNN3]
P-1
PO4 : (CX70-02725-l)
[CNN5]
PTB21
PO0
PO2 : (PX70-02582-I
[TBll[
)
EOI : (PX70-02585-I
WIIC
VW [
]
] [2OOV]
’
)
3 [El
PO3 : (PX70-02583-l)
: BLACK]
POWER
Box
C
IE
E02
EOO -B
PO1 : (CX70-02724-I
[2OOV] [
)
[TBI
] [2OOV]
CETF
[CN456]
[
[CN505]
[
[CN517]
[
W’ll [
*SIGNAL
(FCS12
: CX77-96541-1)
*POWER
(FCP40
: CX77-96518-l)
*POWER
(FCP39
: CX77-96519-l)
*EARTH
(FCEOI
: CX77-96579-1)
CGGT
[COLOR
] [CNN2]
] [CNNl]*l)
3 PI
CBTB
CKCN
[COLOR : WHITE]
: BULE]
Note:
Appended
figure
The FCP40 and FCP39 cables
are connected
to CNNl of CBTB.
The CNNl connector
is mounted
to FCP40 and the FCP39 cable
5-2
Cable
connections
(TSX-021A/3C,
/3D:
multislice
is
connected
systems)
later.
No.
2A201-384E*B
12(17)
Console
(Navibox)
w
W2)
Distance
(Distance
The distances
are enclosed
between
between
the
units
W 8)
the units
= Cable length
(Ref.
table
3-1 and 3-2)
when cables
of
standard
between the units
when cables
with parentheses
( ).
Appended
figure
6
Inter-unit
A-15
with
- Retract
lengths
the
maximum
distances
length
are
used)
length
are
used
No.
Appended
Note:
During
above
(1)
floor
work,
to make the
Epoxy
l
l
figure
7
Floor
pour epoxy
installation
levelling
resin
into
surface.
Time
using
the
epoxy
range
resin
shown in
the
figure
resin
Epoxy resin
(Epichlon
857)
Hardener
(Epichlon
B-065)
Mixture
work
2A201-384E*A
ratio:
required
specific
specific
gravity
gravity
857:
B-065 = 3:l
(w/w)
The proper
mixture
ratio
the manufacturer
because
depending
on the particular
for
hardening:
48 hours
(ambient
should
be confirmed
the ratio
differs
formulation.
at ordinary
temperature
(2)
Complete
this work before
carrying
of 2 to 5 days is required
for the
depending
on the temperature).
(3)
For procedures
for pouring
epoxy resin,
LEVELLING
WORK MANUAL" attached
to this
(4)
The tolerance
for the dimensions
given
in
within
k1 mm, which can be measured
using
A-16
1.2
1.2
room temperature
25°C)
in the system because
epoxy resin
to harden
refer
site
with
a period
(differs
to APPENDIX 3 "FLOOR
planning
manual.
the figure
above
a tape measure.
is
Conl
OL
_ ._R---_
PANfL
3
I
tI.RA1
HORIIONIAL
SCM ARIA
PLANt IO COUCH DISIANCfI
m
l---=-T
(Al BObI SCAN
j.
1100
,j
\OUCH
1OP
IEI IllAD SCAN
This
dimension
is
361 mm for
This
dimension
is
1900
mm for
TSX-021A/3C,
TSX-021A/3C,
/3D
/3D
(multislice
(multislice
systems).
2.
systems).
K
Appended
figure
8
Gantry
and patient
couch
-.7
-.-.-+-.-.---.---.
.__________
____d
I
3-.$I
((307))
I(31
DETAIL
5))
FROM
X-RAY
I3
DRILL
90
DEEP
FOR
PLANE
“A”
v-?
M
1630
I
I
Appended-figure
Ml2
I
307
_I_
I-
845
I-
980
(MIN)
L&J-.-L
ANCHOR
9
Grounding
and anchoring
positions
of
the
gantry
and the
patient
couch
WALL
- 340
3880
POINT
\CABLE
(OUTLET)
REFERENCE
GANTRY
COUCH
_.
7-l
1
HEAD REST
(STANDARD)
330
----jam
2390
i
Appended
figure
10
Layout
of
the
gantry
and patient
couch
0
r-2
0
N
LD
cl >
x2>
c3>
<4>
t
Cable length
lYiicl-
<3> -
l
l
c2>
l
Between the console and the keyboard : 2 m
Between the console and the monitor : 1.9 m
Between the keyboard and the mouse : 3 m
1400
1
800
t
I
Appended
(Note:
Monitor
Mouse
Keyboard
Navibox
The above
figure
shows the
11-l
Console
recommended
desk.
(for
single-slice
I
Unit:
systems)
A desk must be purchased
at
each
site.)
mm
<I> 1st monitor
<2> Mouse
<3> 1st keyboard
<4> 2nd monitor
c5> 2nd keyboard
<6> Navibox
Cable length
l
~27
l
l
Between the Navibox and the keyboard: 2 m
Maximum length: 6 m
Between the Navibox and the monitor:
1.9 m
Maximum length: 6 m
Between the keyboard and the mouse: 3 m
<6>
,I l-l
UJ
-a -
1010
Unit:
Appended
*
(Note :
The above
figure
shows the
figure
recommended
11-2
desk.
Console
(for
An appropriate
multislice
systems)
desk must be purchased
at
the
site.)
mm
4
-
135
140
86
Approx.
Appended
figure
12
Speaker
2 kg
No.
ZAZOl-384E
4-411 hole
Approx.
Appended
figure
13
Patient
monitoring
(including
lens
A-22
camera
and stand)
(option)
4 kg
No.
2A201-384E
260
I<
u
IIIIIIIIIIIIIIIIIIIIIII
u
Approx.
Appended
figure
14
Video
display
monitor
A-23
for
monitoring
the
patient
6 kg
No.
800
2A201-384E
>
I
Rear side
PL
I
Front side
Metal screen
Onlv two sides
Approx.
Appended
figure
15
System
A-24
transformer
(CETF005B)
550 kg
No.
APPENDIX
1.
2
HANDLING
2.1
Effects
to EMC, information
are described
below.
of
EM1 Noise
regarding
EM1 noise
and static
and Countermeasures
Symptoms
Some of
2.2
EMC
Introduction
With regard
electricity
2.
ZAZOl-384E
the
symptoms
of
EM1 noise
are
screen
an ultrasound
(1)
Noise occurs
on the
the CT system.
(2)
Waveforms
irregular.
(3)
Noise
(4)
An abnormal
image or a communication
scalpel
or a microwave
unit
is used.
obtained
which
of
listed
by ECG equipment
causes
flickering
below:
used
system
near
on CRTs used
error
being
the
near
used
CT system
the
near
are
CT system.
may occur
if
an electric
Causes
The X-ray unit
of the CT system includes
a large
capacity
inverter
unit.
When this
inverter
unit
operates,
EM1 noise
in the MHz range level
conforms
to the IEC60601-1-2
standards,
some system combinations
may
generate
noise
problems.
In
particular,
the
system,
Possible
when an ultrasound
system is used in the
former
is easily
affected
by noise
produced
routes
of
of
EM1 noise
are
listed
of a CT
latter.
below.
(1)
EM1 noise
is radiated
from the CT system,
CT cables,
etc. to the air
in the form of the electric
wave and enters
the ultrasound
system
via
the ultrasound
system
cable or some other
unit
connected
with the
ultrasound
system
which plays
the role of an antenna.
(This
is
called
radiation
noise.)
(2)
EM1 noise
transmits
ultrasound
system
this
cable.
(This
The routes
of noise
simultaneously.
2.3
transmission
vicinity
by the
through
a CT system
cable,
and enters
the
is called
conduction
entry
described
above
cable,
transfers
to an
ultrasound
system through
noise.)
may often
exist
Countermeasures
There are two main approaches
to counter
noise
generation
in the system generating
of noise
entry
into
the system affected
must be investigated
as countermeasures.
Actual
countermeasures
are described
ultrasound
system,
electric
scalpel,
combination
with a CT system.
A-25
this
problem;
the noise,
by the noise.
the prevention
and the prevention
Both approaches
below for the example
and a microwave
unit
of an
used in
of
No.
(1)
Countermeasures
for
the
CT system
Table
Cause/route
identification
l
l
l
Turn OFF the power of
the CT system and check
whether
there
is any
change in the noise
characteristics
of the
ultrasound
system.
whether
there
is any
change in the noise
characteristics
of the
ultrasound
system.
whether
there
is any
change in the noise
characteristics
of the
ultrasound
system.
0 Perform
simple
shielding
of the cables
of the CT system using
aluminum
foil,
ground
the cables,
and check
the results.
(Difficulty:
High)
l
Remove the electric
scalpel
or microwave
unit
from the CT
system.
Alternatively,
turn OFF the power of
the electric
scalpel
or
microwave
unit.
(When the CT system is
affected)
A-l
Cause/route
procedure
0 System
radiation
Countermeasures
receives
noise.
l
l
l
l
ZAZOl-384E
Conduction
noise
via the powersupply
line
Conduction
noise
via the ground
cable
l
l
Change the orientation
position
of the system
receiving
noise.
or
If the problem
still
occurs
after
the above measures
have been taken,
the
scanning
room must be
shielded
using
sinteredferrite
or a rubber
material
that
absorbs
the noisecausing
signals.
Insert
an EM1 filter
power-supply
line.
Asteion,
the filter
already
installed.)
in the
(For
is
Make the connections
independent.
For example,
place
a new
ground
cable
for the CT
system.
(Difficulty:
l
Radiation
noise
from CT cables
If the noise
is
reduced,
the
cause is
radiation
noise
from CT cables.
0 System
radiation
receives
noise.
Shield
the cables
using
mesh-type
shielding
material.
(Difficulty:
High)
(Since
CT systems have several
units
and many cables,
this
procedure
may be difficult.)
l
l
l
A-26
High)
Orient
the CT X-ray unit
so
that
the noise
is minimum.
If the problem
still
occurs
after
the above measures
have been taken,
the
scanning
room must be
shielded
using
sinteredferrite
or a rubber
material
that
absorbs
the noisecausing
signals.
No.
(2)
Countermeasures
for
the
ultrasound
Table
Cause/route
identification
l
l
l
l
l
l
l
l
Move the ultrasound
system to a location
far from the CT system.
Check whether
is reduced.
the
system
A-2
Cause/route
procedure
Radiation
l
Countermeasures
noise
l
noise
Disconnect
all
the
cables
of optional
units
(printer,
VCR,
imager,
etc.)
connected
to the ultrasound
system.
l
ZAZOl-384E
The transducer
acts as an
antenna
for the
entry
radiation
noise.
l
Ask the customer
to use the
ultrasound
system at a
location
away from the CT
system if possible.
Replace
the
transducer.
Insert
the power supply
filter
in the powersupply
line
of the
ultrasound
system.
If the noise
vanishes
as a result
of these
actions,
the route
of
entry
of the noise
lies
in one of the cables.
If the noise
does not
the transducer
vanish,
could
also be the
cause.
Change the transducer
of the ultrasound
system to a transducer
with
reinforced
shielding
(for example,
a double
shielded
transducer).
Remove
filter
status
result.
the power-supply
in the above
and check the
l
Conduction
noise
from the powersupply
line
or
the ground
A-27
l
Insert
filter.
the
power-supply
No.
Cause/route
identification
l
l
Cause/route
procedure
Connect
the cables
of
the optional
units
one
by one to identify
which cables
are the
noise
routes.
l
l
Conduction
via cables
Countermeasures
I
noise
l
Entry
from cables
exposed
to
radiation
noise
Since
several
cables
may be noise
routes,
check all
the cables.
l
l
l
l
Check whether
the
cables
of the
ultrasound
system and
the optional
units
are
close
to the cables,
etc.
of the CT system.
l
Change the cable
routing
to increase
the
distance
between
the
sets of cables
and
check whether
the noise
is reduced.
0 Perform
simple
shielding
of the cables
of the ultrasound
system using
aluminum
foil
and ground
the
cables.
l
Radiation
noise
from the cables
of the CT system
transfers
to the
cables
of the
ultrasound
system
and enters
the
system via the
cables.
Radiation
noise
enters
the
ultrasound
system
via the cables.
A-28
ZAZOl-384E
l
l
Connect
the power cable
of
the unit
(printer,
VCR,
etc.)
connected
to the cable
acting
as the noise
route
to
the power-supply
filter.
Insert
a core and filter
between
the ultrasound
system and the cable
playing
the role
of the noise
route.
For the BNC cable
of
imager,
a filter
for
connector
is provided.
the
BNC
Change the cable
routing
increase
the distance
between
the cables.
Shield
the cables
using
mesh type of shielding
material.
to
a
No.
3.
Influence
3.1
What
of
is
Static
static
Electricity
and Required
2A201-384E
Countermeasures
electricity?
The Static
Electricity
Handbook
of the Static
Electricity
Institute
(published
by Ohm Inc.)
defines
static
electricity
as "electricity
where
the spatial
movement
of electric
charges
is small
and the effects
of the
magnetic
field
due to the slight
spatial
movement
of electric
charges
are negligible
in comparison
to the effects
of the electric
field."
That is, static
electricity
is electricity
which resides
in the material
and moves little.
To study actual
dynamic
electricity
static
electricity
phenomena
related
to static
phenomena
(for
example,
phenomena
must be included
electricity,
however,
static
discharge)
caused
in the scope of study.
by
Thus, the study of static
electricity
phenomena
includes
the study of
some dynamic
electricity
phenomena.
It should
be noted
that
the
voltages
involved
in static
electricity
phenomena
are generally
higher
in comparison
to those involved
dynamic
electricity
phenomena,
but the
total
amount of electricity
(electric
charge)
involved
is generally
much
less for static
electricity
phenomena
than for dynamic
electricity
phenomena.
A-29
No.
3.2
Necessity
of
countermeasures
CT systems
contain
sensitive
to static
The following
table
device
is damaged.
various
semiconductor
electricity.
shows the
Table
Type
of
component
VMOS
MOS FET
GaAs FET
EPROM
JFET
SAW
OP-AMP
CMOS
Schottky
diodes
Film
resistors
Bipolar
transistors
ECL
SCR
Schottky
TTL
against
static
static
ZAZOl-384E
electricity
devices
which
electricity
levels
are
very
at which
each
A-3
Voltage
range resulting
component
damage (V)
I
30 to 1.800
100 to 200
I
I
100 to 300
100
I
I
140 to 7.000
150 to 500
I
190 to 2,500
250 to 3.000
300 to 2,500
300 to 3.000
380 to 7,000
500 to 1,500
680 to 1,000
1,000 to 2,500
in
The level
of static
electricity
that
can cause damage differs
depending
on the type of device.
Damage may be result
from static
electricity
levels
of less than 100 V as shown in the above table.
This system
conforms
to EMC standards
IEC60601-1-2
and therefore
is not damaged due
to supplied
voltage
of 3 kV (contact)
or 8 kV (in the air).
If this
system is to be used in an atmosphere
where static
electricity
of more than 3 kV is present,
countermeasures
against
static
electricity
must include
the CT system as well as the environment
in which the CT
system is installed
as targets.
A-30
No.
3.3
Suppression
and prevention
Antistatic
(1)
measures
Increasing
for
of
static
electricity
nonconductors
relative
humidity
As shown in tables
A-4 and A-5, the generation
of static
can be prevented
by increasing
the relative
humidity.
Table
A-4
Static
Dependence
of generated
relative
humidity
electricity
generated
Walking
on a carpet
Walking
on a vinyl
Working
at
Table
A-5
voltage
on
I Static
electricity
voltage
(V)
10% to
floor
20% RH
65% to
90% RH
1,500
table
6,000
100
work
in/from
a vinyl
7,000
600
chair
with
cushion
can be reduced
Relationship
electricity
20,000
1,200
18,000
1,500
a work
a
to
less
than
l/l0
between the humidity
voltage
for various
Static
Fiber
electricity
250
Sitting
on a work
polyurethane
foam
The voltage
humidity.
static
35,000
Picking
up an ordinary
polyethylene
bag from
table
*:
by
electricity
12,000
a work
Storing/removing
instructions
cover
ZAZOl-384E
50% RH
electricity
by increasing
and the
fibers
voltage
65% RH
(kV)
80% RH
Wool
4.9
2.0
0.8
Cotton
0.1
0.0
0.0
Viscose
rayon
4.7
1.6
0.5
Acetate
rayon
6.0
3.5
3.3
A-31
static
the
No.
However,
increasing
humidity
(Refer
to figure
A-l.)
too
much
causes
Overall
Y.
clean
L 10
___---2b
IX
I
The above
systems
/
I
,’
A’
Humic lity
L-.
narard
40I
A-l
hazara
hazard
hazard
-3b
hazard.
ratio
~om~O-~icity
50I
Relative
Figure
hazard
c__r_
I
humidity
ZAZOl-384E
60I
70I
humidity
8;
-
100,
&)
The relation
between
relative
hazard
ratio
relationship
indicates
should
be controlled
in
90
relative
humidity
and
that
the relative
humidity
the 50X to 55X range as far
for
as
possible.
(2)
Countermeasures
using
conductive
materials
The above method
(increasing
relative
humidity)
optimal
because
humidity
hazard may be caused.
preventive
measures
using
conductive
materials
below.
(An example
comparing
conductive
shoes
shoes is presented.)
Walking
in
place:
alking
Standing
in
place;
x
lam-
aNormal
shoes
Figure
A-2
Standing
x
i
1
Time
is not always
Therefore,
are outlined
with normal
2
2
(min)
Time
Nonconductive
flooring
material
Figure
A-3
(min)
Conductive
material
flooring
Figure
A-2 illustrates
an example
of walking
in place
followed
by standing
on a nonconductive
floor
with normal
shoes and
conductive
shoes.
(The static
electricity
voltage
may be
higher
depending
on the material
of the clothes,
etc.)
Wearing
conductive
shoes makes it possible
to decrease
the
static
electricity
voltage
level.
However,
the static
electricity
voltage
even at this
level
could
damage devices,
as shown in table
A-3.
A-32
No.
ZAZOl-384E
Figure
A-3 illustrates
an example
of walking
in place
followed
by standing
on a conductive
floor
with normal
shoes and
conductive
shoes.
Preventive
measures
against
static
electricity
using
a conductive
floor
and conductive
shoes are
extremely
effective.
This method
should
therefore
prevent
damage due to static
service
personnel.
Materials
Reference
and manufacturers
manufacturer:
l
Conductive
floor
l
Conductive
slippers
. Conductive
shoes
be used
electricity
are
Achilles
------
listed
Inc.
Conductive
---
------
during
site planning
caused by users
to
or
below.
floor
tiles
SKY-11
ICS-0100
ICMOlOO
ICM0230
(for
(for
men)
women)
The installation
area of the conductive
floor
is shown in the
attachment.
(Refer
to figure
A-4 "Room layout
example".)
It is recommended
that
special
consultation
with the flooring
material
manufacturer
be held before
building
the floor.
A-33
No.
<l> Gantry
<z> Patient
<37 Patient
<47
Console
couch
monitoring
system
The conductive
floor
grounding
grounding
point
of the gantry
the console
must be connected
cable near the gantry
must be connected
floor
grounding
cable
and the conductive
to the grounding
point
of the console.
Figure
Note:
The console
2A201-384E*B
<4>
for
A-4
single-slice
Room layout
systems
A-34
example
is
shown as an example.
to the
near
No.
APPENDIX
FLOOR LEVELLING
(TECHNIQUES
3
WORK MANUAL
FOR USING
FOR
Asteion
A-35
EPOXY RESIN)
ZAZOl-384E
No.
1.
OUTLINE
This manual
epoxy resin
and patient
describes
the procedures
to ensure
levelness
of
couch of the Asteion.
This manual,
although
written
applicable
to other
models.
2.
ZAZOl-384E
TOOLS AND MATERIALS
Tools
or materials
for
the
performing
installation
specifically
for
the
floor
floor
work using
for the gantry
Asteion,
is
also
REQUIRED
Quantity
required
(1)
Plastic
L-angle
plates
(20 x 20 x 1830 mm)
(2)
Adhesive
tape
18 mm x 35 m)
(3)
Cutter
2
Used to
covering
(4)
Saw
1
Used to cut
angle plates.
(5)
Basin
bucket
1
Used for
resin.
mixing
epoxy
(6)
Ladle
1
Used for
resin.
mixing
epoxy
(7)
Caulking
Silicone
clear
compound
(joint
sealant
Cemedine
1
Used to prevent
the epoxy resin.
(8)
Caulking
gun
1
Used to apply
compound
(9)
Tape measure
2
Used to measure
dimensions
and to draw lines.
1
For
(60
(10)
Spatula
(11)
Epoxy
(12)
Winter-use
(Epichlon
(13)
Rags
(14)
Grinder
(15)
Technodisk
(external
(product
cm in
resin
12
Remarks
number
diameter)
(Epichlon
252,
4 rolls
or
sealant)
8060
857)
hardener
B-065)
Used for
applying
(reusable)
the frames
epoxy resin
Used to fix
angle plates.
the
remove
plastic
the
the
18 liters/can
1 can
18 liters/can
leakage
caulking
1 bundle
1
diameter
(16)
Plastic
sheet
(17)
Spray
lubricant
100 mm)
(2 m x 2 m)
1
(CRC-556)
1
A-36
Used for
finishing
epoxy
resin
L-
floor
plastic
caulking
1 can
for
L-
of
No.
<Supplier
Epoxy
NOTE:
of
resin
the
epoxy
and hardener:
ZAZOl-384E
resin>
Dai-Nippon
Ink
& Chemicals,
Inc.
Although two different hardeners are available for the epoxy resin (winter-use
hardener
and summer-use
hardener), the winter-use
hardener must be used.
The summer-use
hardener is not suitable for work in hospitals or clinics because it
requires a long hardening time and, in some cases, the application of heat may be
necessary to achieve hardening.
A-37
No.
3.
WORK PROCEDURES
The main
work
procedures
are
Marking
off
as follows:
the
floor
1
Drilling
the
Removing
Making
the
the
frames
anchor
floor
for
holes
covering
resin
I
application
I
Applying
!
resin
Finishin;[orming)
!
A-38
ZAZOl-384E
No.
The following
shows the application
full-scale
gauge be used for marking
2-@22
DRILL
90
DEEP
area.
(It
and anchor
FOR
Ml6
is recommended
hole drilling
195
\
A-39
2A201-384E*A
that the
work.)
No.
3.1
3.2
2A201-384E
Marking
(1)
Determine
the installation
couch (refer
to appended
(2)
Mark off
determined
Drilling
the
the
(1)
Drill
drill
(2)
Cut a slit
cutter.
locations
figure
2).
for
resin
application
areas
installation
locations.
Anchor
Holes
and Removing
the anchor holes
with a 22-mm bit.
at
the
10 to 15 mm inside
the
on the
the
marked
the
gantry
floor
sections
Floor
Covering
positions
using
marking
line
on the
Remove
inside
(4)
Clean
the
the
the
floor
covering
marking
line)
area
from
which
inside
the
the
floor
A-40
marking
covering
patient
of
the
an electric
floor
using
Cut the dotted-line
section with a cutter
(over the
entire edge)
(3)
and the
line.
has been
(Entire
removed.
area
a
No.
3.3
Making
the
Frames
(1)
Cut off the
saw.
Treat
(2)
Tape
been
(a)
for
the
Application
plastic
L-angle
plates
along
the corners
as shown below.
along the
cut off.
Tape
Resin
marking
outside
line
of
the
of
the
Use the spatula
to spread
corner
inside
the L-angle
Caulking
plastic
r
Adhesive
A-41
marking
L-angle
L-angle
the caulking
plate.
compound
the
plastic
n
(b)
2A201-384E
plate
line
plates
to
tape
a
that
have
secure
Secure with adhesive
compound
using
all
it.
tape
over
the
No.
(c)
Tape outside
plates.
(d)
Cut out part
of the plastic
the patient
couch to make
(This
gantry
(e)
job must
and the
sections
of
the
corners
L-angle
an epoxy
between
the
ZAZOl-384E
plastic
L-angle
plates
for the gantry
resin
passageway.
be performed
to ensure
that
patient
couch are flush.)
the
bottoms
of
and
the
Using
a spatula,
apply
caulking
compound
(joint
sealant)
to all
sections
where the resin
may leak,
such as the connections
at
the corners
of, and the joints
between,
the plastic
L-angle
plates,
the clearances
between the installation
surface
and the
base, etc.
APPLYthe tape. 1
Epoxy resin passa
.-.-
(f)
Wind paper on the
tape.
Insert
this
caulking.
anchor
a couple
of times
anchor
into
the anchor
and fix it using
hole and perform
the
Anchor-,
Caulking
Paper
NOTE:
The anchor must be well caulked to prevent the epoxy resin from being intruded
into the anchor hole.
The paper wound on the anchor must be higher than the epoxy resin depth.
A-42
3.4
Applying
(1)
ZAZOl-384E
into
a basin,
Resin
Place
epoxy resin
(major
and mix them thoroughly
Mixture
ratio
Specific
NOTE:
No.
:
gravity:
agent),
hardener,
using
a ladle.
Epoxy
resin:
hardener
Epoxy resin
Hardener
1.20
1.20
1. This job must be performed
and pigment
= 3:l
(w/w)
with a plastic floor-covering
sheet laid on the floor.
2. Before mixing the liquid agents, they must be accurately
replenishment
container.
weighed
using an oil
3. The oil replenishment
container that has been used for weighing
used to apply the resin.
4. Gloves,
eye protection,
etc. must be worn when handling the resin.
5. During handling of the resin, good ventilation
volatile chemical.
(2)
Pour
the
liquid
mixture
into
the
must be provided
since it is a
frames.
Since the resin
has a certain
degree of viscosity,
the
The amount of mixture
poured
should
be poured
evenly.
the minimum
thickness
of the resin
is about 5 mm.
3.5
must not be
mixture
must
be such that
(3)
Allow
about one hour after
the start
of pouring
to observe
closely
for leakage
of the resin
from the frames.
If leakage
is seen,
immediately
seal the leak using
adhesive
tape or caulking
compound
(joint
sealant).
(4)
After
pouring
to the epoxy
resin
surface
Finishing
the
has been completed,
apply
a spray lubricant
resin
surface.
This eliminates
any bubbles
to ensure
a smooth finish.
Resin
CRC-556
from the
Surface
(1)
After
allowing
the resin
to stand for 48 hours or more,
check
the surface
has become hard (press
the surface
with a push-pull
gauge and confirm
that
the surface
is not dented).
(2)
Remove the
passageway
(3)
Remove any rough
using
a grinder.
smooth.
frames.
Remove
using
a saw.
the
gantry-to-couch
epoxy
resin
edges or bulges
from the corners
and the
Finish
the entire
surface
so that
it is
A-43
that
surface
flat
and
1385,SHIMOISHIGAMI,OTAWARA-SHI,TOCHIGI-KEN 324-8550,JAPAN

TOSHIBA

Transcription

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