run meeting j-parc (june 12th 2015)

S. Bianchin 9th J-PARC PN Run Meeting (June 12th 2015)

Sébastien Bianchin

9th J-PARC PN Run Meeting June 12th 2015

Progress ReportE36 Experiment @ K1.1Br

1


The E36 Experimental Setup

TOF2

TARGET

MWPC

SIDE VIEWEND VIEW

2


The Active Scintillating Fiber Target

Designed and assembled at TRIUMF (Canada)

Delivered at J-PARC (Sept. 2014)

~ 6cm Diameter256 Sc. Fibers (3.2 x 3.2 x 200 mm3) + WLS FibersMPPC readout (1mm2 sensor)Better Efficiency at Low Temperature Peltier Coolers

EASIROC Boards (developed by Tohoko Univ.)64ch. I/OADC High Gain and Low GainMulti-hit TDC (LE & TE)

3


E36 Central Detectors

TREK Target insertion (Sept. 2014) SFT Fibers inserted into Target DB

(Japan and Canada meet each other)

SFT TOF1AC

TARGET : 256ch

SFT : 128ch

4


Improvement of TOF2 signals

moved

PMT replacement scheduled for the next beam interruption (June 16th)

47/48 channels are now working properly

5


Gain adjustment for SFT

Bad Light Collection or BAD MPPCs ?

Possibility of adjusting the Bias Voltage for each MPPC

6


Q7 and Q8 tuning

We are currently tuning the Q7 and Q8 magnets in order focus the Kaon beam in the center of the TREK Active Target

Event Display of a Kaon Decay in the TREK TargetKaon Hit Position in the TREK Target

PRELIMINARY RESULTS

7


Temperature Control & Monitoring

Peltier Cooler Slow Control (Labview)

Temp. & Humidity Control using MIDAS

Possibility of monitoring Target DB & EE temp. & Humidity

from the Counting House using a VNC connection

8


HV Slow Control

(Courtesy of Bishoy Dongwi, Hampton University, VA, USA)

Set and Control High Voltage for different detectors (Including CsI(Tl)) directly from the Counting House

NEW !

9

run meeting j-parc (june 12th 2015)

Science

jparc pn

sbastien bianchin

trek target kaon

target db japan

sft tof1 ac target

humidity control

sft fibers

control high voltage