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The new time tool beam split 10% (~1mJ) from MPA 1 out. The beam path (purple line in Fig. 1)is routing along the wall of the MPA2 box, across the stretcher box, elevating from 3.5" to 5.5" in height, routing around the big compressor, through TT-shutter, and elevating from 5.5" to 28" to the second floor of the time tool/compressor/delay box( red area). The second floor contains delay switches, a compressor, manual delay stage. Then a periscope sends the beam down to the first floor, which contains a remote delay stage and final pointing mirrors to send the beam to the YAG stag inside the vacuum chamber.
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Figure 1. The time tool beam path is labeled in purple. The beam is split 10% (1mJ) from MPA 2 out. The T1 mirror can be adjusted to point the beam to the center of the camera imager: TT in. The route is along the wall of MPA2 box, across the stretcher box, elevating from 3.5" to 5.5" in height by the periscope (red circle), getting around the big compressor, through TT-shutter, and elevating from 5.5" to 28" to the second floor of the time tool/compressor/delay box( red area). The second floor contains delay switches, compressor, manual delay stage. Then a periscope sends the beam down to the first floor, which contains a remote delay stage and final pointing mirrors to send the beam to the YAG stage inside the vacuum chamber.
Configuration
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s
witch
There are various configurations. The most common two are so-called HP compressed and LP MPA2 bypassed.
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- Other configuration settings: except for LP bypass MPA2 and HP Compressed, there will be deviations due to the OAP FL, compressor bypass, etc. Please find the details in"Configurations and time tool path lengths".
Alignment check
T1 mirror → TT in
2nd floor irises
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| Figure 4 (a) adjust the T1 mirror to center the beam on TTin imager |
