Presentation is loading. Please wait.

Presentation is loading. Please wait.

Status of RICH mechanical design at PNPI E.Vznuzdaev for PNPI group: V.Dobyrn, A.Khanzadeev, E.Kormin, V.Lebedev, N.Miftakhov, V.Polyakov, V.Samsonov,

Published byNora Golden Modified over 8 years ago

Similar presentations

Presentation on theme: "Status of RICH mechanical design at PNPI E.Vznuzdaev for PNPI group: V.Dobyrn, A.Khanzadeev, E.Kormin, V.Lebedev, N.Miftakhov, V.Polyakov, V.Samsonov,"— Presentation transcript:

1 Status of RICH mechanical design at PNPI E.Vznuzdaev for PNPI group: V.Dobyrn, A.Khanzadeev, E.Kormin, V.Lebedev, N.Miftakhov, V.Polyakov, V.Samsonov, O.Tarasenkova, V.Tolchin, E.Vznuzdaev

2 Previous meeting - ”point of departure”

3 RICH mirror layout

4 Tasks for the current stage Design of the mirror mount for thin (3mm) trapezoid mirrors with dimensions of 400mmx400mm Development the test-bench for optical measurements to study the mount influence on the mirror optical quality and to determine the mirror adjustment procedure

5 Basement of the mount design for thin mirrors Common considerations: - mirror unit  mirror mount  mirror truss - mirror unit + mirror mount = one thing (mirror module) - mirror mount includes adjustment mechanics Problem: - this is a problem to connect a thin spherical mirror unit with adjustment mechanics immediately (fragility)  strong requirement to safe handling Decision: -one of the way to implement such a connection is to do this with an intermediate flat panel

6 Sphere-plane transition 5-point sphere-plane transition is proposed CFC tubes for transition (Exel Industry) Thin and rigid sandwich with small density supposed to be used as flat panel Sandwich (can be provided by Subatech, Nant): core - 8 mm Nomex honeycomb with density 1347g/m2; skins are made from 2x0.1 mm thick CFC with high tensile modulus 314 Gpa (LHC, ALICE project, muon chambers) 3-D design of the transition

7 Assembling of the sphere-plane transition Assembling sequence: Arrangement of the mirror with safety film on the mould with the same spherical surface Setting sandwich panel immovable above the mirror Inserting tubes into the holes Gluing bottom and top ends of the tubes with mirror and sandwich

8 3-D model of the mirror/mount prototype The triangular mounting arrangement allows to adjust the mirror by rotation of three mounting screws, rigidly attached to the sandwich To avoid the deformation of the mirror panels: a ball joint is applied for the one of the mounting point on the mirror; balls in slots is used for the other two mounting points

9 Gravity deformation of the mirror: vertical position FEM calculations: Maximum deviation from spherical shape~ 0.2 microns

10 Gravity deformation of the mirror: inclined positions mirror slope=+20°, max. deviation<2microns mirror slope=-20°, max. deviation<2microns FEM calculations

11 Test-bench for optical measurements Purpose – study of optical characteristics for mirror/mount prototype Horizontal (+/- 45°) and vertical (+10/-25°) rotation of the mirrors Optical measurements for different angle positions of the mirrors Time stability study for mirror mount Measurements of regulation dependencies for adjustment mechanics Study of the adjustment procedure

12 Optical quality measurements Conventional procedure of the optical quality (Do) measurements Mount influence on Do value Point source: red He-Ne laser with diaphragm CCD: mat screen and web-camera with USB output ■ Current status – creation of the measurement procedure, hardware and software development using flat mirror as reflective surface with divergent laser beam

13 Laser beam reflection (~4%) from two sides of the light splitter to obtain the reference point for the test - bench Test-bench tuning (hardware and software) with flat mirror Scanning of the spherical mirror surface with He-Ne red laser beam; Time stability study for mirror/mount prototype Using light splitter

14 Experimental setup with light splitter

15 Next steps Mirror/mount prototype construction Tool and equipment development for prototype assembling Choice and acquisition of materials for prototype construction Prototype assembling Optical test measurements Optical quality Time stability Development of the adjustment procedure Adjustment parameters measurements

16 SPARE

17 2x2 mirror unit configuration Dimension of the mirror unit: 200mm x 200mm Compound mirror module consists of 4-th units Precondition to use such a design is case of insufficient optical quality for 400mm x 400mm mirror unit Using of developed sphere- plane transition technology of assembling

18 View of mirror support section

19 Sequence of the RICH mechanics design process Simulation Preparation of design specifications Conceptual design(3-D modeling, FEM calculations) Prototyping and testing Simulation Improvement of design Engineering design

Download ppt "Status of RICH mechanical design at PNPI E.Vznuzdaev for PNPI group: V.Dobyrn, A.Khanzadeev, E.Kormin, V.Lebedev, N.Miftakhov, V.Polyakov, V.Samsonov,"

Similar presentations

Enrique Calvo Alamillo Madrid 1 March 2010. Index: 1.Proposal for a DHCAL m3 module. 2.Numerical simulations for a m3 module. 3.Extrapolation of the m3.

Enrique Calvo Alamillo Madrid 1 March Index: 1.Proposal for a DHCAL m3 module. 2.Numerical simulations for a m3 module. 3.Extrapolation of the m3.
Determination of heights – essential terms 1. Equipotential surface = a surface with the invariable gravity potential (perpendicular to the force of gravity.

Determination of heights – essential terms 1. Equipotential surface = a surface with the invariable gravity potential (perpendicular to the force of gravity.
TPC meeting, NBI, 2-3 September 2002Børge Svane Nielsen, NBI1 Status of laser system TPC meeting, Copenhagen, 2-3 September 2002 Børge Svane Nielsen, Jørn.

TPC meeting, NBI, 2-3 September 2002Børge Svane Nielsen, NBI1 Status of laser system TPC meeting, Copenhagen, 2-3 September 2002 Børge Svane Nielsen, Jørn.
Laser Design Review, CERN, 27 Jan 2003Børge Svane Nielsen, NBI1 TPC Laser system  Functions of the system  Basics of the design  Construction tolerances.

Laser Design Review, CERN, 27 Jan 2003Børge Svane Nielsen, NBI1 TPC Laser system  Functions of the system  Basics of the design  Construction tolerances.
01/07/2008HCAL Main Meeting- Mechanical Integration1 ILD HCAL Mechanical Integration HCAL Main Meeting Kirsten Kschioneck, DESY.

01/07/2008HCAL Main Meeting- Mechanical Integration1 ILD HCAL Mechanical Integration HCAL Main Meeting Kirsten Kschioneck, DESY.
Rosier Ph. – IPNO – Detector Dpt. – 27/05/2011APRIME HPS collaboration meeting 1/24 1- Vacuum chamber proposal 1.1- Stainless steel chamber design and.

Rosier Ph. – IPNO – Detector Dpt. – 27/05/2011APRIME HPS collaboration meeting 1/24 1- Vacuum chamber proposal 1.1- Stainless steel chamber design and.
1 MC Assembly via Test Cell Crane FPA Stage 3 Peer Review August 12, 2005 T. Brown.

1 MC Assembly via Test Cell Crane FPA Stage 3 Peer Review August 12, 2005 T. Brown.
1 Laser Beam Coherence Purpose: To determine the frequency separation between the axial modes of a He-Ne Laser All sources of light, including lasers,

1 Laser Beam Coherence Purpose: To determine the frequency separation between the axial modes of a He-Ne Laser All sources of light, including lasers,
10/11/03 TGC1 Design problem Muon Week, 10 th November 2003 R. Vuillermet on behalf of the Muon Design Team : E. Fernandez, D. Mladenov, P. Minginette,

10/11/03 TGC1 Design problem Muon Week, 10 th November 2003 R. Vuillermet on behalf of the Muon Design Team : E. Fernandez, D. Mladenov, P. Minginette,
AMS-02 tracker mechanics status of assembly and integration Inner tracker integration completion: - Assembly and cabling - Temperature and magnetic field.

AMS-02 tracker mechanics status of assembly and integration Inner tracker integration completion: - Assembly and cabling - Temperature and magnetic field.
Tagger and Vacuum Chamber Design. Outline. Design considerations. Stresses and deformations. Mechanical assembly.

Tagger and Vacuum Chamber Design. Outline. Design considerations. Stresses and deformations. Mechanical assembly.
MICE Collaboration Meeting March 29 - April 1, 2004 -- CERN MICE alignment, tolerances and supports Tuesday March 30 Room 17-1-007 Edgar Black/IIT March17-

MICE Collaboration Meeting March 29 - April 1, CERN MICE alignment, tolerances and supports Tuesday March 30 Room Edgar Black/IIT March17-
MM mechanical prototype Work progress at CERN MicroMegas General Meeting, CERN, 5-6 November 2013 1.

MM mechanical prototype Work progress at CERN MicroMegas General Meeting, CERN, 5-6 November
M. Mariotti Padova University/INFN, CTA meeting Berlin 3-4 May 2006 >1 m 2 metallic mirror technology AIM find a suitable technology for large reflecting.

M. Mariotti Padova University/INFN, CTA meeting Berlin 3-4 May 2006 >1 m 2 metallic mirror technology AIM find a suitable technology for large reflecting.
Status of IPBSM Improvement N. Terunuma, KEK 2012/July/13 ATF2 Weekly Meeting.

Status of IPBSM Improvement N. Terunuma, KEK 2012/July/13 ATF2 Weekly Meeting.
TP4-ENERSOL-TD/PV double function

TP4-ENERSOL-TD/PV double function
CERN PH/DT 30/01/14 Francisco Perez Gomez CERN PH/DT.

CERN PH/DT 30/01/14 Francisco Perez Gomez CERN PH/DT.
Tagger and Vacuum Chamber Design. Outline. Design considerations. Stresses and deformations. Mechanical assembly.

Tagger and Vacuum Chamber Design. Outline. Design considerations. Stresses and deformations. Mechanical assembly.
TT Assembly Structure Reference-Reinforcement System: 1.Description of the system 2.Assembling Procedure 3.Production Project Board, march 2005 D.Orlandi.

TT Assembly Structure Reference-Reinforcement System: 1.Description of the system 2.Assembling Procedure 3.Production Project Board, march 2005 D.Orlandi.
DELTA Quadrant Tuning Y. Levashov, E. Reese. 2 Tolerances for prototype quadrant tuning Magnet center deviations from a nominal center line < ± 50  m.

DELTA Quadrant Tuning Y. Levashov, E. Reese. 2 Tolerances for prototype quadrant tuning Magnet center deviations from a nominal center line < ± 50  m.

Similar presentations

Ads by Google