先进气体探测器会议报告

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Gas system for PandaX-III
1) Filling system; 2) Circulation
purification system; 3)Emergency recovery 4)Pumping port; 5)Sample port.
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Electronics
FEC board base on ASIC AGET chips: generic electronics for TPC from CEA-Saclay
1230mm
Option3:designoffieldcageoffullTPC 5
Tested Flex PCB board design
Ø The latest version in mini-TPC:
(height:20cm;Inner diameter:34cm)
1. double sided PCB board 2. cambered board corners
TPC
Ø Vessel work is expected to be completed by the
d readout plane with 52 MMs 4
New Field cage
Ø Option1:Coppershapingrings+resistors+ externalTeflon(orAcrylic)supportingbars
multi-connected PCB boards
12cm
PCB design of the novel field cage patch
Page.
6
New version of MMs and Readout plane
longitudinal
Engineering drawing of MM_V2 horizontal
the readout plane for the full size TPC
FtF connector cavity
Page.
the test module for the readout plane design
installation of the mock up Micromegas board
PandaX-III detector of first phase
2
China Jin-Ping underground Laboratory
rockoverburdenof2400m muonrateof1/m2‧week
HallatCJPLforPandaXexperiment
Presser
Position holes/pins
MM_V2 tensing
Holder
MM_V2 tensing scheme
temperature test of MM_v2
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Readout plane test of prototype TPC
PandaX-III prototype TPC
Ensure high energy resolution
FEC V3 with 4 AGET chips has been completed
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Topological background discrimination
Backgroundsimulationanddiscrimination:
The Status of PandaX-III Experiment
2019.10.17
2νββ
0νββ
1
PandaX-III: search for 0νββ of Xe136
Ø TPC:100kgscalehighpressureTPCwithMicrobulkMMschargereadout Ø Maindesignfeatures:goodenergyresolutionandtrackingcapability Ø Traditionalcutsandneuralnetworktopologicalstudies(arXiv:1903.03979;1802.03489).
Ø350 nm CMOS, mature technology Ø64 channel multiplex Ø512 sampling point per channel Ø12 bit ADC ØDynamic range up to 10 pC ØSampling rate: 1 MHz to 100 MHz
Ø Option3:KaptonFlexiblePCB+SMDresistors istestedinmini-TPCandprototypeTPC
Ø Option2:Resistivecoating(DLC)ontheacrylic pieces
Muon track taking
1bar Ar-5%iso
1bar Xe-1%TMA
7 MMs data taking
5bar Xe-1%TMA
10 bar Xe-0.75%TMA (Low gain~75)
Electronics test with USTC
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rails for Micromegas
To prevent spark
3. adjustable transversal connection
Ø Result: up to 50kV in air. (4.2kV/cm)
Ø The next plan in prototype TPC and
then in full TPC:
(height:78cm; Inner diameter:65.4cm)
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目录Contents
1 The status of full TPC 2 The topological studies
New design of high pressure vessel
Top Flange
SS vessel
Copper substrate
Dry shielding 1.Pb 2.HDPE