1 / 12

TD24 in TBTS data analysis

TD24 in TBTS data analysis. CLIC RF Structure Development Mtg , Alexey Dubrovskiy. 27.07.11. Outlines. History of Processing Explicit BDR measurements Accelerating gradient and pulse length dependency with BDR Stress dependency with BDR Vacuum level Breakdown distribution.

amable
Download Presentation

TD24 in TBTS data analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TD24 in TBTS data analysis CLIC RF Structure Development Mtg, Alexey Dubrovskiy 27.07.11

  2. Outlines • History of Processing • Explicit BDR measurements • Accelerating gradient and pulse length dependency with BDR • Stress dependency with BDR • Vacuum level • Breakdown distribution CLIC RF Structure Development Mtg Alexey Dubrovskiy 27.07.11 2

  3. Table of parameters for TD24_vg1.8_disk CLIC RF Structure Development Mtg Alexey Dubrovskiy 27.07.11 * A. Grudiev, 25/03/10 3

  4. Summary of ACS processing CLIC RF Structure Development Mtg Alexey Dubrovskiy * At the beginning of 2011 the ACS was taken out and retuned 27.07.11 4

  5. Processing during the last 4 weeks Vacuum level Forward peak power Pulse length at 75% of pp Pulse length at 90% of pp CLIC RF Structure Development Mtg Alexey Dubrovskiy Number of BD BDR 27.07.11 5

  6. Explicit BDR measurements ~E30 ~E11 bdpppm CLIC RF Structure Development Mtg Alexey Dubrovskiy MV / m BDR is scaled to a pulse length of 160ns: slim line - τ6 and bold line - τ3. 27.07.11 6

  7. 3 Periods of Processing Forward peak power Vacuum level Periods 1 2 3 3 1 2 Pulse length at 75% of pp Pulse length at 90% of pp CLIC RF Structure Development Mtg Alexey Dubrovskiy Number of BD BDR 27.07.11 7

  8. Accelerating gradient vs BDR From data fitting: Period 1: Ec ~ τ1/3.9 Period 2: Ec~ τ1/3.8 Period 3: Ec~ τ1/4.1 bdpppm CLIC RF Structure Development Mtg Alexey Dubrovskiy MV / m BDR scaling low for rectangular pulses: BDR ~ Ecs1τs2 (Ecand τ – const.) Normalization low to the rectangular pulse of a pulse length of 160ns: Ec= (∫E(t)s1/s2dt / 160)s2/s1 27.07.11 8

  9. Pulse length vs BDR From data fitting: Period 1: Ec ~ τ1/4.0 Period 2: Ec~ τ1/3.4 Period 3: Ec~ τ1/3.7 bdpppm CLIC RF Structure Development Mtg Alexey Dubrovskiy ns BDR scaling low for rectangular pulses: BDR ~ Ecs1τs2 (Ecand τ – const.) Normalization low to the rectangular pulse of an accelerating gradient of 100 MV/m: τ= ∫E(t)s1/s2dt / 100s1/s2 27.07.11 9

  10. Stress vs BDR bdpppm CLIC RF Structure Development Mtg Alexey Dubrovskiy MV / m BDR scaling low for rectangular pulses and constant temperature: BDR ~ exp(a Ec2)(Ec– const.) * FlyuraDjurabekova (25.05.2011) Normalization low to the rectangular pulse of a pulse length of 160ns: Ec=(∫E(t)4dt / 160)1/4 27.07.11 10

  11. Vacuum level CLIC RF Structure Development Mtg Alexey Dubrovskiy 27.07.11 11

  12. Breakdown distribution CLIC RF Structure Development Mtg Alexey Dubrovskiy 27.07.11 * Walter Wuensch (06.05.2011) 12

More Related