Changes for page FL10M3 screen system

Last modified by sndueste on 2025/01/07 15:51
From version 8.1
edited by sndueste
on 2021/06/21 14:49
Change comment: There is no comment for this version
To version 12.1
edited by sndueste
on 2025/01/07 15:51
Change comment: There is no comment for this version

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1 -BL0M0 screen system
1 +FL10M3 screen system
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1 -= BL0M0 screen system =
1 += Content: =
2 2  
3 -**The BL0M0 beamblock and screen system was NEWLY installed June / July 2018 **
4 -\\
5 5  
4 +{{toc minLevel="2"/}}
6 6  
7 7  
8 -{{toc/}}
7 +== Intro ==
9 9  
10 -\\
9 +**The BL0M0 beamblock and screen system was NEWLY installed June / July 2018 **
11 11  
12 12  Essentially the blocking of the FEL beam by the screen //and// the beam profile viewing have been separated. The beam block is operated as before "the screen" with the same buttons. To look on the beam profile a screen has to be moved in separately with the "move screen to PG / BL" buttons.
13 13  
14 -Drawings by Svea:
13 +Drawings by Svea:
15 15  Beam block and Crystal are moved out:
16 16  
17 17  [[image:attach:BL0M0-image.jpg||height="250"]]
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43 43  
44 44  [[image:attach:M0_screen_is_in.jpg.png||height="250"]]
45 45  
46 -\\
47 47  
48 48  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
49 49  
50 50  === retraction ===
51 51  
52 -In order to protect the Ce YAG crystal from too much radiation, we implemented a system that retracts the crystal automatically after several minutes .
53 -The idea is, that the crystal can be used for tuning and looking at the beam profile but **NOT as beamblock** (which is now a separate device). In order to avoid too much moving in and out of the crystal, there is a button (in the red warning box) which resets the timer. If the button is pressed the time window starts again and the crystal stays in ...
50 +In order to protect the Ce YAG crystal from too much radiation, we implemented a system that retracts the crystal automatically after several minutes .
51 +The idea is, that the crystal can be used for tuning and looking at the beam profile but **NOT as beamblock** (which is now a separate device). In order to avoid too much moving in and out of the crystal, there is a button (in the red warning box) which resets the timer. If the button is pressed the time window starts again and the crystal stays in ...
54 54  It is to note, that before the crystal is retracted automatically it checks if the beam block is in. If this is not the case, the beam block is moved in BEFORE the crystal is retracted ...
55 55  
56 56  [[image:attach:BL0Mo_retraction.jpg||height="250"]]
57 -\\
55 +
58 58  
59 59  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
60 60  
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72 72  
73 73  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
74 74  
75 -\\
76 76  
77 77  === Expert Settings ===
78 78  
79 79  detailed settings and restarting of the servers can be done by experts on the expert tab:
80 80  
81 -\\
82 82  
83 83  
84 84  [[image:attach:BL0M0 expert.png||height="400"]]
85 85  
86 -\\
87 87  
88 88  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
89 89  
90 90  == Reference Values for the camera ==
91 91  
92 -Reference image for the camera settings
93 -[[image:attach:BL0M0 camera reference.png||height="400"]]:
87 +Reference image for the camera settings
88 +[[image:attach:BL0M0 camera reference.png||height="400"]]:
94 94  The jddd panel also checks for these values otherwise an error message will be displayed
95 95  
96 96  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
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100 100  Images of the setup::
101 101  
102 102  [[image:attach:20180712_142435.jpg||height="250"]]
103 -\\
98 +
104 104  
105 105  [[image:attach:20180712_142421.jpg||height="250"]]
106 -\\
101 +
107 107  
108 108  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
109 109  
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111 111  
112 112  * The motor driving camera and crystal is: mot37 at hasfmirr
113 113  * it is connected via patch panel PPBDA M11
114 -* [[more details in this logbook entry~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|width="13" height="12"~]~]>>url:https://ttfinfo.desy.de/ExpHallelog/show.jsp?dir=/2018/27/05.07&pos=2018-07-05T16:06:25||shape="rect"]]
109 +* [[more details in this logbook entry~[~[image:url:http://hasfweb.desy.de/pub/TWiki/TWikiDocGraphics/external-link.gif~|~|height="12" width="13"~]~]>>url:https://ttfinfo.desy.de/ExpHallelog/show.jsp?dir=/2018/27/05.07&pos=2018-07-05T16:06:25||shape="rect"]]
115 115  
116 116  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
117 117  
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118 118  === Crystal ===
119 119  
120 120  * The Crystal is a 30 x 30 mm Ce:YAG crystal (0.2 mm thick) with a roughened Si scattering (0.6 mm thick) screen behind) mounted at 45 deg to the beam and the camera.
121 -* Camera calibration: For x and for y we have 22 pixel per mm. Thus if the image is quadratic the beam should be round. The crystal is still not quadratic since we see the x dimension shrinked by sqrt(2).
116 +* Camera calibration: For x and for y we have 22 pixel per mm. Thus if the image is quadratic the beam should be round. The crystal is still not quadratic since we see the x dimension shirked by sqrt(2).
122 122  
123 123  [[BL0M0 screen system>>doc:||anchor="BL0M0 screen system"]]
124 124  
125 125  === Iris ===
126 126  
127 -* the Iris is controled by haskrpiris08 192.168.58.192
122 +* the Iris is controlled by haskrpiris08 192.168.58.192
128 128  * it is connected to the plug "28c-Halle-106 rechts"
129 129  * up to now there is no remote power switch installed for the Raspy ... to come
130 130  
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139 139  BL0M0 image~:
140 140  
141 141  [[image:attach:BL0M0.jpg||height="400"]]
142 -\\
137 +
143 143  
144 144  The GUI and the HELP is still under development ... in case of confusion call Stefan Düsterer 91625
145 145  
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