Results from TCP.D6L7 Test on 25102010 - LHC Collimation ...

<strong>Results</strong> <strong>from</strong> <strong>TCP</strong>.<strong>D6L7</strong> <strong>Test</strong> on 25­10­2010
A. Nordt (BE­BI­BL)
8 th of November 2010

Annika Nordt
Overview of this Talk
TC P Te s t P r o c e d u r e a n d ov e r v i e w o f b e a m d u m p
B L M L o s s e s vs D c u m ( R S 0 5 ) a s ex a m p l e
I n t e n s i t y a n d J a w Po s i t i o n d u r i n g t e s t
B L M a n d v a c u u m l o s s e s v e r s u s t i m e
B L M l o s s e s v e r s u s j a w p o s i t i o n
Va c u u m L o s s e s v e r s u s j a w p o s i t i o n
B L M a n d Va c u u m L o s s e s v e r s u s J a w Pos i t i o n
TC P B L M M a x i m u m L o s s e s f o r a l l R S d u r i n g t e s t
B L M Po s t M o r t e m E x p e r t D a t a f o r TC P s a n d TC S G s i n I R 7

Annika Nordt
Overview of <strong>TCP</strong> <strong>Test</strong> Procedure at 3.5TeV
­ B e a m s d u m p e d a t 14 : 07: 4 9 ( LT ) w h e n TC P B 1 V ( TC P. D 6 L 7. B 1 ) r e a c h e d i t s
p o s i t i o n l i m i t . I n t e r l o c k wo r ke d a s s p e c i f i e d .
­ I n c r e m e n t e ve r y 3 s e c j aw p o s i t i o n b y 5m
­ TC P p o s i t i o n t h r e s h o l d s w e r e n o t c h a n g e d f o r m a x i m u m s a f e t y.
­ G o t t a i l d a t a f o r b e a m 1 v e r t i c a l f r o m 2 . 0 4 5 m m t o 1. 6 4 2 m m
( ex p l o r e d 1 s i g m a o f t a i l ) .

Annika Nordt
Beam Dump during of <strong>TCP</strong> <strong>Test</strong> at 3.5TeV
­ B e a m 1 i n t e n s i t y: 4 2 . 6 2 e 12 p , B e a m 2 i n t e n s i t y: 3 9 . 75 e 12 p , b e t a * = 3 . 4 m
­ B e a m s d u m p e d a t 14 : 07: 4 9 ( LT ) : 2 5 ­ 10 ­ 2 010
­ B e a m s d u m p e d d u e t o l o s s e s o n 0 4 L 6 M Q Y ( B 2 I 2 0 , B 1 E 2 0 ) a n d
0 6 R 6 M Q Y (B 2 I 2 0 , B 1 E 2 0) i n R S 01 ­ R S 0 5 , n o t d u e t o l o s s e s o n TC P m o n i t o r s

Annika Nordt
BLM Losses (RS05) During <strong>TCP</strong> Movement
­ S t e p w i s e m ove m e n t o f c o l l i m a to r
j a w d u r i n g 4 m i n u t e s c a u s e s l o s s e s
I n m a ny B L M s w i t h a m a x . l o s s o f
0 .1 G y / s e c f o r R S 0 5 ( 2 . 5 6 m s )

Annika Nordt
Beam Intensity and Jaw Position During <strong>Test</strong>
­ S t e p w i s e m ovement of collima to r j a w
( e ve r y 3 s e c 5m ) d u r i n g ~ 4 m i n u t e s l e a d s
t o d e c r e a s e i n b e a m i n t e n s i t y

Annika Nordt
BLM and Vacuum (77­B) Losses versus Time
­ B L M E I . 07 L 7. B 1 E 10 _ TC P. D 6 L 7. B 1 l o c a t e d a t 197 9 0 .18 4 m
­ VG P B 7 7 6 L 7 l o c a t e d a t 19 8 41. 9 4 2 m
­ D i s t a n c e m o n i t o r­ p r e s s u r e g a u g e i s 51. 75 8 m

Annika Nordt
BLM and Vacuum (77­R) Losses versus Time
­ B L M E I . 07 L 7. B 1 E 10 _ TC P. D 6 L 7. B 1 l o c a t e d a t 197 9 0 .18 4 m
­ VG P B 7 7 6 L 7 l o c a t e d a t 19 8 41. 9 4 2 m
­ D i s t a n c e m o n i t o r­ p r e s s u r e g a u g e i s 51. 75 8 m

Annika Nordt
BLM Losses RS09 (1.3sec) versus Jaw Position GU
­ B L M L o s s e s o n B L M E I . 07 L 7. B 1 E 10 _ TC P. D 6 L 7. B 1 f o r R S 0 9 v s j a w p o s i t i o n
s h o w a m a x i m u m l o s s e ve r y 0 . 0 0 5 a n d 0 . 01 m m d u r i n g s t e p w i s e
m ove m e n t o f c o l l i m a t o r j a w

Annika Nordt
BLM Losses RS09 (1.3sec) versus Jaw Position GD
­ B L M L o s s e s o n B L M E I . 07 L 7. B 1 E 10 _ TC P. D 6 L 7. B 1 f o r R S 0 9 v s j a w p o s i t i o n
s h o w a m a x i m u m l o s s e ve r y 0 . 01 m m d u r i n g s te p w i s e
M ovement of collimator jaw

Annika Nordt
Vacuum Losses versus Jaw Position (GD)
­ Va c u u m l o s s e s v s j a w p o s i t i o n
­ M a x . i n c r e a s e i n p r e s s u r e f r o m 5 e ­ 10 m b a r u p t o 2 .1 e ­ 8 m b a r

Annika Nordt
Vacuum Losses versus Jaw Position (GU)
­ Va c u u m l o s s e s v s j a w p o s i t i o n
­ M a x . i n c r e a s e i n p r e s s u r e f r o m 5 e ­ 10 m b a r u p t o 2 .1 e ­ 8 m b a r

Annika Nordt
Vacuum and BLM Losses versus Jaw Position
­ B L M L o s s e s o n B L M E I . 07 L 7. B 1 E 10 _ TC P. D 6 L 7. B 1 f o r R S 0 9 a n d va c u u m
l o s s e s v s j a w p o s i t i o n i n m m d u r i n g s te p w i s e m ovement of collimato r j a w

Annika Nordt
BLM Maximum Losses versus Integration Time
­ B L M L o s s e s o n B L M E I . 07 L 7. B 1 E 10 _ TC P. D 6 L 7. B 1 f o r R S 01 ­ R S 0 9 v s t i m e
­ E a c h c u r ve r e p r e s e n t s l o s s p a t t e r n ove r t i m e f o r a m a x l o s s d u r i n g
TC P j aw m ovement (RS01 ­ R S 0 5 ) c o n s t a n t , t h e n d e c r e a s e u n t i l R S 0 9

Annika Nordt
BLM Post Mortem Expert Data for <strong>TCP</strong>s in L7, R7
­ L o s s e s f r o m l o n g P M b u f f e r o n TC P s i n L 7 a n d R 7 f o r R S 01 v s t i m e
­ L o s s e s a p p e a r w i t h a f r e q u e n c y o f ~ 0 . 2 s e c d u r i n g t h e 1. 7 s e c b e f o r e
d u m p

Annika Nordt
BLM Post Mortem Expert Data for <strong>TCP</strong>s in 7 (Zoom)
­ L o s s e s f r o m l o n g P M b u f f e r o n TC P s i n L 7 a n d R 7 f o r R S 01 v s t i m e
­ Z o o m i n t o l o s s e s b e f o r e a n d d u r i n g b e a m d u m p
­ TC P A 6 L 7 B 1 d o e s f o l l o w t h e 'o s c i l l a t i o n s' b e fo r e t h e d u m p b u t
N OT 0 . 0 4 s e c b e f o r e d u m p

Annika Nordt
BLM Post Mortem Expert Data for <strong>TCP</strong>s in 7 (Dump)
­ L o s s e s f r o m l o n g P M b u f f e r o n TC P s i n L 7 a n d R 7 fo r R S 01 v s t i m e
­ Z o o m i n t o l o s s e s d u r i n g b e a m d u m p
­ H i g h e s t l o s s e s d u r i n g d u m p a t TC P s i n R 7 ( 1. 2 G y / s e c )

Annika Nordt
BLM Post Mortem Expert Data for TCSGs in 7
­ B L M L o n g P M b u f f e r d a t a f o r l o s s e s o n TC S G s i n L 7

Annika Nordt
BLM Post Mortem Expert Data for TSGs in 7 (Zoom)
­ B L M L o s s e s o n TC S G s i n L 7 s h o r t l y b e f o r e d u m p o c c u r e d

Annika Nordt
Conclusion
­ B L M a n d va c u u m l o s s e s a r o u n d c o l l i m a t o r s i n I R 7 h ave been inve s t i g a t e d
­ D u r i n g t h e TC P j a w m ove m e n t , t h e v a c u u m l o s s e s i n c r e a s e f r o m 5 e ­ 10 to
2 e ­ 8 m b a r ( m a x i m u m )
­ B L M l o s s e s a n d va c u u m l o s s e s c o r r e l a t e w i t h j a w p o s i t i o n