// we noticed yesterday that GE at 143 degrees counts more than those placed at 117 and 101. The 511 keV line (+ background) is much more pronounced for Ge at 143 degrees. To investigate this issue we decreased the beam intensity to 0.3 enA ( value given by operators at the beam dump ). 

Conclusion - decrease of the beam intensity does not explain above observations (se attached figs)

plunger run # 216

Beam dump 0.3 enA (given by operators) * 7 (following entry ID#39) = 2.1 enA

Collimator     enA

Run Data =/onlineNEDA_00/xData/hil099/run_0035_03-03-2023_00h04m26s/needleRU_i35_0035_0040.caendat

RU : 2.15 MB/s

LF : 5.60 MB/s

Supposed Distance = 10 um

position of the target = 10.6 um

micrometer = 8.8 um

Voltage = 7.8 V