NLCTA & E-163

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Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
1

of
10

Beam

Authorization

Sheet

Beam Authorization Sheet for NLCTA Operation


RF

Operation
:


S
-
b
and modulator #0 to gun cavity

X
-
Band modulators #1, #2, and

L
-
band modulator #3 to cavities in NLCTA beam line.


Primary beam
:


Type: Electrons

Beam path: to
NLCTA beam dump or E
-
163 Experim
ental Hall beam dump.


Valid on:


From:

10
/
02
/2008

Time: 00:00


To:

03/16/2009

Time:
00
:00


Approval of
Beam Authorization Sheet

Ra
diation Protection

________________________________
_____

H. Tran,

S. Rokni, or J. Vollaire

Accel
erator Department

Safety Office

________________________

P. Miller

NLCTA (S.O./O.M.)

________________________________
_____

K.

Jobe or J. Nelson

E
-
163 (S.O./O.M.)

________________________________
______

E. Colby

Required before operation of any RF Sources or Beam



All RF Pre
-
Running Conditions have been signed off:

EOIC:_____________________________

Date/Time: ___________________

Required before allowing of RF sou
rce operation


All BEAM
Pre
-
Running
Conditions have been signed off:

EOIC:_____________________________

Date/Time: ___________________

Required before allowing beam operation


Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
2

of
10

Beam

Authorization

Sheet


Item

Operation of RF sources

(with or without beam)

1

The
EOIC

must conf
irm the integrity of all PPS components and radiation safety items in
the NLCTA
and Experimental Hall
per the “
Inspection

Checklist”

procedure [02
-
03
-
11]

2

The
EOIC

must
perform a PPS Interlock Check when

searching the enclosure if it has
been
in Permitte
d Access for more than one shift.




“PPS Interlock Checklist” procedure [02
-
03
-
03]





Experimental Hall PPS Interlock Checklist”

procedure [02
-
03
-
29].

3

The
EOIC

must review the appropriate Radiation Safety Work Control Forms after work
on radiation safety
items is performed

3

BSOIC settings:
trip at 10 mR/hr EXCEPT u
nit

4
set to
trip at
4
mR
/hr above the internal
source level

and equipped with a

time
-
delay “pigtail”

and

u
nit
s

9
,
1
5

at

100 m
R
/hr
.
All
BSOICs must be active except u
nits
1,

2
, 10, 11,
12

which

are not installed.

4

Instantaneous beam voltage limit for all X
-
band klystrons (including overshoot) is 450 kV.

5

Maximum pulse repetition rate for all
X
-
band klystrons is 60 PPS.


Unattended Operation (without beam)

6

When an NLCTA operator is not pr
esent:



The Gun Modulator “S
-
Band Injector HV Power” key (#5) must be locked in the
NLCTA Key Safe.



The Inspection Checklist [02
-
03
-
11] must be completed each weekday.


Operation with Beam

7

The Protection Ion Chambers 1 through 8 must remain active at a
ll times. The trip levels
(set to 50nA or less) must be checked per the “Beam Containment Daily Checks”
procedure [02
-
03
-
07]

each day
.

8

Beam operation in the NLCTA is limited to 10 Hz or less. The
gun
rep rate limiting
electronics must be checked as per
the “Beam Containment Daily Checks” procedure [02
-
03
-
07].

9

The maximum allowable energy (unloaded) gain in NLCTA is 650 MeV.


Operation with Beam

into the Experimental Hall


The

Experimental Hall
S
topper
Enable” key (#5) must be locked in the NLCTA Ke
y Safe
unless a
E
-
163 operator present.

10

Maximum
allowable
beam
parameters
70 MeV

at

10 Hz, 200 mW

beam power
.

11

No more than one screen
(e.g.:
Ce:YAG
)

located inside the experiment chamber may be
inserted

at any time
.

Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
3

of
10

Beam

Authorization

Sheet

N
OTE
:

The stopper enable key ma
y not be released until all pre
-
running conditions have been satisfied,
except as required by PPS certification.

Item

D
ate/

Time

C
kd.

by

E
OIC

Ackn.

General
Pre
-
running Conditions

1




BSOICs must be calibrated and trip circuits checked per “NLCTA
Bp佉C⁃e
rtification Checklist” [02
-

-
〵0K

(required every 6 month



RPFO & NLCTA
)

2




Location of BSOICs must be checked.


(required every 6 months



Radiation Protection
)

3




The integrity of NLCTA and Experimental Hall enclosure (walls &
roof) must be verif
ied (note: the roof penetrations no longer are
required to be shielded).

(required for every BAS



Radiation Protection
)

4




All unused roof penetrations into the accelerator area of the
accelerator enclosure are blocked.


(required for every BAS

-

NLCTA
)

5




The roof blocks of the
NLCTA

must be chained
and locked with an
ADSO padlock
.

(required for every BAS

-

ADSO
)

6




Radiation fences on the East and North sides of Experimental Hall
must be locked

with an E163 keybank key
.


(required for every BAS

-

NLCTA
)

7




PPS must be certified by an approved member of the PPS group per
procedures:

-

Initial Acceptance Interlock Test [18
-
29
-
05].

-

Initial Acceptance Electrical Hazard Test [18
-
29
-
06].

-

Initial Acceptance Radiation Test [18
-
29
-
07].

-

Experimen
tal Hall Initial Acceptance

Procedure

[18
-
29
-
11].

(required every 12 months



Controls PPS
)

8




PPS Interlock Check
per procedures [02
-
03
-
03] and [02
-
03
-
29].

(required every 6 months



NLCTA
)

9




Verify that that the 2
-
Pack waveguide (located on the
N
LTCA

roof)
to
the
NLCTA housing is terminated and locked with an ADSO lock.

(required for every BAS



ADSO
)

11




All pertinent Radiation Safety Work Control forms have been
reviewed.

(required for every BAS



NLCTA
)

*
Conditions satisfied in a prior BAS

are handled by: a) carry over date/time from date of condition in
prior BAS, b) in “Ckd By” column indicate issue date of prior BAS, c) Initial in “OIC Ackn”.

Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
4

of
10

Beam

Authorization

Sheet


Item

D
ate

Time

C
kd.

by

OIC

Ackn.


Beam

Pre
-
Running Conditions

1




BCS must be certified pe
r
the “NLCTA BCS PIC Pre
-
牵渠
Checkout” procedure [18
-

-
㠰8K

(required every 12 months



Controls BCS
)

2




Gun Faraday Cup
(flange on upward spectrometer beamline)
must
be in place.

(required for every BAS



NLCTA
)

3




Protection collimators at the fi
rst chicane bend (A on map) and at
the spectrometer bend (B) must be in place
.

(required for every BAS



NLCTA
)

8




Protection collimator downbeam of the stopper
-
pair for the
experimental enclosure beamline must be in place.

(required for every BAS



NLC
TA
)

5




The items in the
NLCTA

& Experimental Hall sh
ielding check list
are verified.

(required for every 6 months



Radiation Physics
)

6




All pertinent Radiation Safety Work Control forms have been
reviewed.

(required for every BAS

-

NLCTA
)

*
Condit
ions satisfied in a prior BAS are handled by: a) carry over date/time from date of condition in
prior BAS, b) in “Ckd By” column indicate issue date of prior BAS, c) Initial in “OIC Ackn”.



Item

D
ate/

Time

C
kd.

by

E
OIC

Ackn.

Initial Checkout

1




Test t
hat PICs
1 through 2
respond to beam
.

(required for each BAS after beam is established to the E
-
163
extraction line



NLCTA
)

2




Test that PICs
3 through 8
respond to beam
.

(required for each BAS

after beam is established past the E
-
163
extraction line



NLCTA)

3




Radiation surveys are performed.

(required for once when the beam power into E163 enclosure is
above 100 mW, but less than 130 mW



NLCTA)


Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
5

of
10

Beam

Authorization

Sheet


Item

Label

NLCTA
& E
xperimental Hall Shielding

Checked By

Girder 41 Shield Components


1

1A

Front

(Northwest) Plate
-

Inside


2

1B

Front (Northwest Plate)
-

Outside


3

2A

Downbeam wall
-

Top


4

2B

Downbeam wall
-

Bottom


5

3A

Roof plate
-

top


6

3B

Roof plate
-

bottom


7

4A

Rear (southeast) plate
-

Inside


8

4B

Rear (southeast) plate
-

Outside


Girder 42 Shield Components


9

5A

Front (North) plate
--

West Section


10

5B

Front (North) plate
--

Center Section


11

5C

Front (North) plate
--

East Section


12

6A

Roof plate
--

Top Plate
--
West Section


13

6B

Roof plate
--

Bottom Plate
--
West Section


1
4

6C

Roof plate
--

Top Plate
--
Center Section


15

6D

Roof plate
--

Bottom Plate
--
Center Section


16

6E

Roof plate
--

Top Plate
--
East Section


18

6F

Roof plate
--

Bottom Plate
--
East Section


19

7A

Downbeam wall
--

Top


20

7B

Downbeam wall
--

Bottom


21

8

D
ownbeam wall
--

North 0.5" Lead Supplement Plate


22

22A

Quad 7,8 North 1" plate
-

West (view from behind girder 42)


23

22B

Quad 7,8 North 1" plate
-

East (view from behind girder 42)


24

23A

Quad 7,8 North 3" plate
-

West (view from behind girder 42)


25

23B

Quad 7,8 North 3" plate
-

East (view from behind girder 42)


Girder 44 Shield Components


26

10A

Front (Northwest) Plate
-

Inside


27

10B

Front (Northwest Plate)
-

Outside


28

11A

Downbeam wall


29

12

0
-
degree Dump


Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
6

of
10

Beam

Authorization

Sheet


Item
No.

Label

NLCTA &
Experimental Hall Shielding

Checked By

East Wall Shelf Components


3
0

13

Lead Dump (beneath steel retaining plate)


31

14

12x12x8 Steel Block north of Lead Dump


32

15

8x12x32 Steel block south of Lead Dump


33

16A

Top Steel block behind column


34

1
6B

Front Steel block behind column


3
5

16C

Bottom Steel block behind column


3
6

17

Supplementary blocks to fill in behind column


North Wall Shelf Components


3
7

18

Tungsten core of bend line dump


38

19A

Dump steel top plate


39

19B

Dump steel rear
(South) plate


40

19C

Dump steel middle plate


41

19D

Dump steel front (North) plate


Spectrometer Protection Collimator Components


4
2

20

Upbeam copper collimator

top

& bottom


4
3

21

Downbeam copper collimator


top

& bottom


Other

Item
s


4
4


4
Ext
ernal concrete shielding blocks lo
cated outside the east wall of
Experimental Hall
.


4
5


The integrity of radiations fences on the east and north
sides
of
Experimental Hall.

(East Fence: minimum 10’ from the east wall, North
Fence: minimum 6’ from the nor
th wall)


Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
7

of
10

Beam

Authorization

Sheet


(B
)

BSOIC Locations

(P)

PIC Locations

A, B

Protection Collimators



Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
8

of
10

Beam

Authorization

Sheet

Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
9

of
10

Beam

Authorization

Sheet

Modifications to this BAS

Item

Date/
Time

Approvals

Changes or
A
dditions*

RP

ADSO

OIC/SO







* Items changed must be entirely rewritten and a single line drawn thro
ugh items changed.




5.4m

4.0m

Experiment:

NLCTA & E
-
163

Date of issue:

10/02
/2008


NLCTA Document 02
-
03
-
39
-
R03

(fin
al)

Page
10

of
10

Beam

Authorization

Sheet

Check
-
off Boxes for Review of BAS: Read
Modifications

and
running conditions

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