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RICH WG. M.Lenti. Outlook. Mirror Support Vidyo meeting on June 12, 20, 27 and on July 4 and 11 RICH WG meeting on august 27 Vessel status ( see Ferdi ’s presentation last Tuesday ) Mirror Support Status ( V.Carassiti ) Mirror Support Prototypes ( G.Anzivino )

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rich wg

RICH WG

M.Lenti

outlook
Outlook
  • MirrorSupportVidyo meeting on June 12, 20, 27 and on July 4 and 11
  • RICH WG meeting on august 27
  • Vessel status (seeFerdi’s presentation last Tuesday)
  • MirrorSupport Status (V.Carassiti)
  • MirrorSupportPrototypes (G.Anzivino)
  • PM installation (M.Lenti)
  • RICH TDAQ status (M.Piccini, reported in the TDAQ summary)
the mirrors front view
THE MIRRORS– FRONT VIEW

V. Carassiti - INFN FE

the holes on the supporting panels detail
THE HOLES ON THE SUPPORTING PANELS - DETAIL

TENSIONING RIBBON

TRANSMISSION SUPPORT

MIRROR SUPPORT (CONE)

PLANE B

V. Carassiti - INFN FE

the tensioning ribbons
THE TENSIONING RIBBONS

V. Carassiti - INFN FE

the half central mirror
THE HALF CENTRAL MIRROR

TWO DOWELS

V. Carassiti - INFN FE

the half central mirror1
THE HALF CENTRAL MIRROR

TENSIONING RIBBON

(HORIZONTAL AXIS ROTATION)

SLIDING DOWEL SYSTEM

(VERTICAL AXIS ROTATION)

MIRROR SUPPORT

V. Carassiti - INFN FE

the sliding dowel system detail
THE SLIDING DOWEL SYSTEM - DETAIL

KNOB SUPPORT

FIXED DOWEL

KNOB

ACTUATING BAR

SLIDING DOWEL

MIRROR SUPPORT

V. Carassiti - INFN FE

the half mirror in place
THE HALF MIRROR IN PLACE

V. Carassiti - INFN FE

prototype 2 0 done
Prototype2.0: done

StabilizerRibbonadded

prototype 3 0 3 mirrors in preparation in perugia
Prototype 3.0 (3 mirrors) in preparation in Perugia

HONEYCOMB PLATE

MIRROR

FRAME

V. Carassiti - INFN FE

mirrors assembly put the mirror in place 1 insertion system updated design
MIRRORS ASSEMBLY – PUT THE MIRROR IN PLACE -1 INSERTION SYSTEM – UPDATED DESIGN

THE INSERTION OF THE DOWEL INTO THE

MIRROR’S HOLE HAS TO BE DONE CAREFULLY

AFTER THE CONNECTION OF THE

RIBBONS THE LIFTING FRAME IS

DISMOUNTED AND THE INSERION

SYSTEM CAN MOVE TO THE NEXT

MIRROR

THE INSERTION SYSTEM DOES

HAVE 3 AXES MOTION

THE MIRROR CAN’T BE HELD BY HAND DURING

THE CONECCTION AND THE TENSIONING OF THE

RIBBONS

V. Carassiti - INFN FE

material procurement in perugia

GiuseppinaAnzivino

Material procurementin Perugia
  • Honeycomb panel
    • order placed beginning of August
    • delivery expected mid september
  • Frame to host the panel
    • same as the panel
  • Insertion tool
    • in production, same delivery time
  • Order for aluminium for the whole production of cones and additional pieces for the mirror support
    • a little bit delayed, but
    • we have in the workshop the material necessary for the production of the pieces for the prototype
front view of rich pm and electronics
Frontviewof RICH PM and electronics

HV

HV

16 X 32 CH

HV FILTER

SIG

SIG

PMT

PMT

SIG

SIG

HV

HV

SUPPORT

SUPPORT

5x TEL62

slide19

Super-CellsNumbering

JURA side

RACK

I: 28 super-cells

7 up-boards

224 channels

II: 33 super-cells

8+1/4 up-boards

264 channels

I

I I

16 FE up-boards

(32 cheach)

512 chtotal

16

20

4

28

8

32

0

17

21

40

5

12

29

44

33

18

1

41

24

9

45

30

13

2

I II

I V

6

36

19

52

42

10

25

14

31

48

3

37

7

53

22

43

60

26

11

15

49

34

61

23

38

54

65

27

16 FE down-boards

(32 cheach)

512 chtotal

46

69

56

62

50

73

35

66

81

55

39

47

93

70

57

77

63

51

94

82

67

97

58

71

59

85

105

95

64

78

109

68

101

113

83

89

106

74

121

79

96

110

72

102

117

86

90

107

118

75

80

114

98

87

119

103

111

91

76

III: 33 super-cells

8+1/4 down-boards

264 channels

84

99

115

120

88

IV: 28 super-cells

7 down-boards

224 channels

104

92

112

116

100

108

Numberingischosentooptimizecablelenght and PM-Cratedistance

Saleve side isequal (not specular) withrack on the right

supercell
Supercell

L

R

PMs are grouped in Supercellsof 8 PM each (tobeused in multiplicity trigger)

Two HV channels (L and R) feedoneSupercell

pm lodging disks
PM Lodgingdisks
  • Each disk has 976 holes; there are twolodgingdisks
  • In eachhole a thin o-ring 1 mm thick (13.5-17.5 mm Ø) isinserted in a gorge at the downstream end
  • Itis the arrestof the PM (and protectionagainstambient light from the back)
new sockets test sample
New sockets (test sample)

Signalcable

withoutconnector

HV connector

New socket

Thick o-ring

(6 mm thick)

A thick o-ring isinsertedupstreamofeachsocket+PMtokeepit in position, protectfrom

ambient light and provide a goodthermalcontact

pm socket insertion
PM+socketinsertion

Upstreamviewof the disk

Fixation bar inserted

A fixation bar in insertedeverytworowsofPMs

tokeepthem in position and facilitate the dissipation

of the residualheatproducedby the sockets

work in clean room
Work in cleanroom

Readytoinstallall the PM+sockets

conclusions
Conclusions
  • Approachingfinal design of the mirrorsupport system
  • Intense prototypingongoing on the mirrorsupport: people training, detailschecking, etc
  • PM installation on the lodgingdisksstarted: first stepof a full (laser) test ofall the electronicschainbeforeinstallation at CERN
  • Some delay in RICH vessel construction