5 th QTAWG meeting January 17 2014 B Auchmann QTAWG Joint Paper Author list B Auchmann T Baer M Bednarek G Bellodi C Bracco R Bruce F Cerutti V Chetvertkova ID: 799283
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Slide1
Status of the joint quench-test paper.
5
th
QTAWG meeting, January 17, 2014, B. Auchmann
Slide2QTAWG Joint Paper
Author list
: B
. Auchmann, T. Baer, M.
Bednarek
,
G.
Bellodi
, C.
Bracco
, R. Bruce, F.
Cerutti
, V.
Chetvertkova
, B.
Dehning
, P. P.
Granieri
, W.
Hofle
, E.
B.
Holzer
, A.
Lechner
, E.
Nebot
Del Busto, A.
Priebe
,
S.
Redaelli
, B.
Salvachua
, M.
Sapinski
, R. Schmidt,
N.
Shetty
, E.
Skordis
, M.
Solfaroli
, D.
Valuch
, A.
Verweij
, J.
Wenninger
, D.
Wollmann
, M.
Zerlauth
Contributing authors
: B. Auchmann, C.
Bracco
,
F.
Cerutti
, V.
Chetvertkova
, B.
Salvachua
, M.
Sapinski
,
N.
Shetty
,
E.
Skordis
Editors
: B. Auchmann, M.
Sapinski
Slide3Overview
1
2
3
4
5
6
7
8
9
10
11
Slide4Structure 1/5
I. Introduction
U
nderstanding QTs and BIQs in order to increase predictive capacity for 7
TeV
.
QTs and BIQs pre LS1.Which QTs and BIQs are described and why.Remark:
Lessons and applications of the analysis will be the subject of B. Dehning’s IPAC14 paper (BLM thresholds, future tests).
Slide5Structure 2/5
II. Quench Levels
(
ok
)
MQED (always peak), MQPD (always average).
Time regimes, what physics, which quench level is relevant.III. Methodology (
ok)Chain of simulations.Uncertainties at various steps.
Slide6Structure 3/5
IV. Short-
D
uration Losses
IV A. Q6 Quench test
(
Anton+Bernhard+Chiara+Nikhil,
ok)V. Intermediate-Duration LossesV A. Wire-Scanner Quench Test (Agnieszka+Anton+Bernhard+Mariusz+Nikhil
, ok for MBRB, MQY)V B. ADT Fast-Loss Quench Test
(Agnieszka+Bernhard+Anton+Nikhil+Vera, ok)
VI. Steady-State LossesVI A. Collimation Quench Tests (Belen+Bernhard+Francesco+
Lefteris, ok)VI B. ADT Steady-State Loss Quench Test (
Agnieszka+Anton+Bernhard+Nikhil+Vera, in progress
)
Slide7Structure 4/5
Each test is structured as follows
Experimental setup
Particle tracking
(MAD-X,
SixTrack
, where applicable)Particle-shower simulation (FLUKA, upper and lower bounds on quench levels)Electro-thermal simulation
(QP3, THEA, ZeroDee, quench level estimates)Remark:Particle-tracking and particle-shower simulation are validated with BLM signals.
Consistency of quench-level estimates with bounds is checked.Work to homogenize QP3, THEA, ZeroDee results is progressing. We can present differing results as uncertainties in heat-transfer models and parameters.
Slide8Structure 5/5
VII. Conclusion and Outlook
How well do we understand events in different regimes?
Do we reproduce BLMs?
Are the quench-level estimates consistent with the
anlysis
?Additional observations: quench-level estimates are more consistent for magnets operating at 4.5 K than those at 1.9 K.
Slide9Todos
Finalize and describe ADT Steady-State Loss Quench Test analysis.
More events? (see
Mariusz
talk)
Stream-line graphs.
Another iteration among contributing authors.
Iterate with author list.Submission Physics Review Special Topics:
Accelerators and Beams (PRSTAB)Time frame depends on points 1-2. Rest should take no more than 1 month.