System Echo

Echo system is currently our As,P machine as well as studies involving bismuth and boron. Current projects include overgrowth and B-III-V alloys...etc.

Sources:

• Ga

• In

• B e-beam (formerly upward looking Bi)

• As

• Bi (formerly Gd)

• Valved GaP cell (formerly La)

• Veeco dual dopant with GaTe, broken bird cage and broken shutter (formerly MBE K Si, Be)

• Triple Dopant (formerly GaTe, formerly Lu)

Doping Calibrations

Growth Computer

Note, this is extremely out of date as we're now using a MOXA coms board. Will update soon -KMM - lies

Rocket Ports

• RP 0 - As Sub, As Cracker, Null, Gd, Bi, LC Lamp; Bake 1; Bake 2; Bake 3; CAR and HS (Substrate and HTS)

• RP 1 - As Valve

• RP 2 - Cable without inputs (free)

• RP 3 - B, Lu, Ga tip, Ga base, In tip, In base

• RP 4 - Si, Be, Al, Bad

• RP 5 - completely empty RP

• RP 6 - Echo cryo monitor (gray phone cable)

• RP 7 - CAR Controller (RS232)

• RP 8 - GC IG SRS

• RP 9 - BOS cryo monitor (gray phone cable)

• RP 10 -BF IG SRS

Other Inputs

• NI DAQ - BOS pressure (AI3 +r -b); Straight to cpu (AI0 +r -b), (AI1 +w -g)

• RS232 from cpu to pyro controller (white)

Source PID Values

Reference:

Adjusting Source Cell PID ValuesPreview

'Low Temperature / Default PID values !'

Note: Only the first (low temperature) set of PID values can be read or written through AMBER. If gain scheduling is enabled, the second (high temperature) set of PID values must be read and written directly from the Eurotherm.

'High Temperature PID values (Gain Scheduling must be enabled) !'