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Table 1 NMR parameters applied in the test.

From: Study on Deterioration Characteristics and Fracturing Mechanism of Concrete Under Liquid Nitrogen Cold Shock

Parameters Value
SEQ CPMG
SF/MHz 20
O1/Hz 732,970.31
P1/us 5
TD 500,004
PRG 1
TW/ms 3000
P2/us 12
TE/ms 0.1
NECH 15,000
SW/KHz 333.333
RFD/ms 0.020
RG1(db) 20.0
DRG1 2
NS 16