start: 10:14:0531 2.3.26
stop: 12:57:08 2.3.26
blocks: 3855

NaCl No. 4

start: 13:28:38, 2.3.2026
stop:  15:05:22, 2.3.2026
blocks:   2206

LiF no. 7 in beam

Start: 15:45:30, 2.3. 2026

Stop: 07:57:05 3.3. 2026

Blocks: 25524

Flux monitor

Start: 16:41:41 of 2nd March

Duration: 58288

NaCl Target 5

start: 08:24:49, 3.3.2026
stop: 10:13:25
blocks: 3062

Flux monitor

Start: 09:20:43

Duration: 6531

LiF no. 7 in beam

Count rate estimate for all reaction measurements planned. 

Assumptions:

• Neutron source 7Li(p,n); default setttings. 
• Distance of sample to target: 30 cm
• solid angle coverage: 0.4
• areal density of samples very roughly estimated from alpha energy loss measurement from  Daresbury
• includes calculation of expected particle energies at 0 and 180 degrees emission. 

Conclusions

• All particles at all neutron energies should be stopped in 150 um detector. If one of them breaks, the 100 um detector should be installed at backward angles.
• sufficient counting statistics for few hours running per target.

T=0: Edinburgh Time 9:39:00

T=1:40: Geel Time 10:37:00

--> T_diff Geel - Edinburgh = 10:35:20 - 9:39:00 = 56:20 

preamp B detector (DSSSD 2) on 100 V, DSSSD 1 still on 70

Plot from Fran showing peak around expected proton energy in both detectors. Top half are strips of detector placed at 180degrees wrt neutron beam, bottom half 0 degrees. Hence, proton peak from bottom half should be at slightly higher energy. 

The first sample on beam is the NaCl target #4. The shado cone was placed between the LiF target and the chamber.

The shadow cone was a cupper cilinder of 4cm diameter and 30 cm lenght, placed at 0.8 cm from the LiF target and 2.8 cm from the chamber. See first figure 1.

Therefore, the diameter of the chamber is 15cm. The sample (considering the center of the chamber as 0) it's place 1 mm misalignt farther from the beam. So, the distance between the LiF target and the sample is 41.2cm.

On the other hand, the distance between detectors is 5.2cm, and the sample is closer to the upstream detector. So, the sample is at 2.5cm from DSSSD #2 (Preamp B) and at 2.5cm from DSSSD #1 (Preamp A). See Figure 2.

DSSSD 2 goes to ADC9419 1; DSSSD 1 goes to ADC9418 2;

Au layer faces DSSSD 1. NaCl target 4. 

Both detectors were setup at 70V on Friday 27th of February.