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Manual_Annealing

For temperatue regulation by PID controller see here.

Annealing

Note that these values have been recorded for a sample holder at room temperature (no LN2 cooling).
Please read the section Cooling for information on Annealing with the LN2 and LHe cooled sample holder and for the
COLD FINGER HEATER (TOP CONNECTOR of the manipulator)

 

PBN SAMPLE HOLDER HEATER New (May 2015)

Curret (A) Voltage (V) Temperature(°C),
4.5 min from RT
Temperature(°C),
16 min from RT
0.3 5.6 100  
0.4 7.2 150 233
0.5 9.3 200  
0.7 13.3 300 427
0.9 15.1 400  
1.2 18.2 500  

PBN All Metal (Sept2017)

Curret (A)

Voltage (V) Temperature(°C)
0.1 2.9 35 (after 40')
0.3 6.1 70 
0.5 9.1 120 (after ~30')
1 14.3 300
1.5 19.4 500
 


E BEAM SAMPLE HOLDERS (2018)

ATTENZIONE:
  • !! Rimuovere la termocoppia di PID prima di applicare HV nella camera Main.
  • !!! Annealing nella camera Prep: Uno dei pin del filamento deve essere messo a terra!
 

SMALL e beam (3.0cm)
22/10/2018
Thermocouple calibration
2.0Ax3.1V 493K (after 17min, p=1x10-7mbar)
2.2Ax3.8V 539K after 12min
2.3Ax4.1V 559K after 15 min
2.4Ax4.4V 572K after 14min
 
(from RT after 2min 530K increasing fast, p=5x10-6mbar with 3.0A)
 
10/12/2018
Pyrometer (reading is lower by 50°C with respect to the therm); Air gas flow
3.2Ax6.2V 370C on the Mo plate (real T~420°C) (no HV)
 
LARGE e beam
24/9/2018
No LN2 cooling. Thermoucouple reading (CHECK AGAIN THESE VALUES)
2.5Ax4.5V 407K=134°C
3.2Ax6.6V 491K=218°C (after11min)
3.9Ax9.0V 587K=314°C

LN2 COOLING ON; T=112K
2.7Ax5.5V 300K in 10 min; 325K in 15min (10+5)
3.3Ax6.7V 434K in 10min
3.7Ax8.1V 523K (250°C) 
4.0Ax9.3V 600K

HV ON 750V (no cooling)
3.5Ax7.4V 14mA 430°C
3.7Ax8.0V 22mA 500°C 2x10-7mbar
3.8Ax8.2V 25mA 560°C
3.9Ax8.4V 30mA 615°C
3.9x8.5V 32.6mA 638°C
WITH 3x10-7 mbar O2: 27.8 mA 630°C
45.5 mA T=730*C

Ebeamcalibration 16/11/2017 (small or large?)
No LN2 cooling. Thermoucouple reading. HV off
0.9Vx1A (elind set 0.8): T=60°C after 35 minutes
1.1Vx1.1A (elind set 1): T=73°C after 35 min (starting from 60*C)
1.4x1.3 (elind set 1.3): T=98.1 °C after 35 min

*For the annealing in the presence of LN2 see the section Cooling

Last Updated on Saturday, 02 May 2020 11:58