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SANS

A list of the IGOR NMR functions with more detailed explanation

COMMAND

DESCRIPTION

IFOpen HeInterface

Opens the 3He interface

IFClose HeInterface

Closes the 3He interface

IFTalk HeInterface "He3PolEnabled()”

Returns “1 = 3He polarizer Enabled?” if the 3He interface is initialized

Returns “0 = 3He polarizer Enabled?” if the 3He interface is not initialized

IFTalk HeInterface “He3AnaEnabled()”

Returns “1 = 3He analyzer Enabled?” if the 3He interface is initialized

Returns “0 = 3He analyzer Enabled?” if the 3He interface is not initialized

IFTalk HeInterface “He3PolFlipOff()”

Function flips the polarizer 3He spin to “UP” or "0" state

Returns “0 = 3He polarizer state”. It does nothing if the state is already “UP” or "0"

Automatically toggles back to the NMR configuration

IFTalk HeInterface “He3PolFlipOn()”

Function flips the polarizer 3He spin to “DOWN” or "1" state

Returns “1 = 3He polarizer state”. It does nothing if the state is already “DOWN” or "1"

Automatically toggles back to the NMR configuration

IFTalk HeInterface “He3AnaFlipOff()”

Function flips the analyzer 3He spin to “UP” or "0" state

Returns “0 = 3He analyzer state”. It does nothing if the state is already “UP” or "0"

Automatically toggles back to the NMR configuration

IFTalk HeInterface “He3AnaFlipOn()”

Function flips the analyzer 3He spin to “DOWN” or "1" state

Returns “1 = 3He analyzer state”. It does nothing if the state is already “DOWN” or "1"

Automatically toggles back to the NMR configuration

IFTalk HeInterface “He3PolGetState()”

Function returns “0 = 3He polarizer state” or “1 = 3He polarizer state”

IFTalk HeInterface “He3AnaGetState()”

Function returns “0 = 3He analyzer state” or “1 = 3He analyzer state”

IFTalk HeInterface "He3PolGetNumFlips()”

Function returns “# = actual number of flips for polarizer”

IFTalk HeInterface "He3AnaGetNumFlips()”

Function returns “# = actual number of flips for analyzer”

IFTalk HeInterface “PolarizerFID()”

Function does an FID NMR measurement for polarizer and returns a number of fit parameters

Automatically tunes solenoid current to measurement value, then back for the experiment

IFTalk HeInterface “AnalyzerFID()”

Function does an FID NMR measurement for analyzer and returns a number of fit parameters

Automatically tunes solenoid current to measurement value, then back for the experiment

IFTalk HeInterface “FIDSetField(value)”

Sets the solenoid current: either the FID NMR/AFP flipping measurements or the experiment

Value is a number ranging from 1.5 to 5.2 A.

Software and hardware limit protection is built in

We do not suggest using it if not necessary. (Call us before using this command)

 

 

RF FLIPPER GPIB COMMANDS

COMMAND FUNCTION
IFOpen GPIBCHANNEL4

Opens RF Flipper Interface

IFTalk GPIBCHANNEL4”OUTPUT ON”

Inverts RF Flipper to "ON" State

IFTALKGPIBCHANNEL4”OUTPUTOFF”

Inverts RF Flipper to "OFF" State

IFClose GPIBCHANNEL4

Closes RF Flipper Interface

 

Created September 13, 2018, Updated November 15, 2019