# In position **27.01.21** Cristallina beam position dial reading: 38 mm # Drawings - [Overview](http://planarchiv.psi.ch/plandb_pub/p_plandb_cus_pub_sucw.viewItem?pId=247025&pPosInQueryList=1&pCount=1&pIndexInQueryList=1&pKrz=&pHg=50024&pUg=24&pLnr=603&pAnlage=&pBaugruppe=&pBenennung=&pFremdNr=&pGueltig=GUL) - [Screen arm](http://planarchiv.psi.ch/plandb_pub/p_plandb_cus_pub_sucw.viewItem?pId=247020&pPosInQueryList=1&pCount=1&pIndexInQueryList=1&pKrz=&pHg=50024&pUg=24&pLnr=598&pAnlage=&pBaugruppe=&pBenennung=&pFremdNr=&pGueltig=GUL) - [Screen holder](http://planarchiv.psi.ch/plandb_pub/p_plandb_cus_pub_sucw.viewItem?pId=247982&pPosInQueryList=1&pCount=1&pIndexInQueryList=1&pKrz=&pHg=50024&pUg=24&pLnr=669&pAnlage=&pBaugruppe=&pBenennung=&pFremdNr=&pGueltig=GUL) # Screen - YAG:Ce polished - 21 x 17 x 0.1 mm³ - 1 mm grid drawing # Imaging - Camera model : [acA640-121gm](https://www.baslerweb.com/en/products/cameras/area-scan-cameras/ace/aca640-121gm/), - Lens: 75mm [MVL75M23](https://www.thorlabs.com/thorproduct.cfm?partnumber=MVL75M23) - Filter wheel: [FW102C](https://www.thorlabs.us/thorproduct.cfm?partnumber=FW102C#ad-image-0) # Extra device - None installed # Config - Image preview PV : SAROP31-PSCR068:FPICTURE - Trigger currently from SGE-CPCW-72-EVR0, FrontUnivOut5 # Camera setting - Camera serial number: 40112250 - Exposure time: 8 ms - Device gain: 0 # Resolution Highest spatial frequency observed, 31 μm, Group 4, element 1 based on resolution tests of PSCR066 and PSCR070. [Target details](https://en.wikipedia.org/wiki/1951_USAF_resolution_test_chart) # Alignment Initial alignment 17/08/21 Alignment carried out by looking at rear of screen **Horizontal** Aligned to the edge of the holder marked wit the red line. Encoder reading -5.803 mm when this point is aligned to the Cristallina beam path. **Vertical** Chamber moved to centre # Triggering 27.01.21 - Event: 13 (Generic B1 follow) - Pulser: 6 - Total delay: 6498.999 + 0 = 6498.999 us - Width: 10.000 us # Example data