Strip Test Database
STRIP71 – Y-Factor test - down LB (PS1001 - polJPL)
General information
| Polarimeter | STRIP71 |
| Acquisition date | |
| Band | W |
| Cryogenic? | Yes |
| Operators | Federica Benedini |
| Description | Y-Factor test - down LB (PS1001 - polJPL) |
| PHSW state | 1001 |
| Notes | The source data file was «SCI180523_102947 - STRIP_W23_Y-Factor_LB__down_50-40-30-20K_PS1001_23May2018.txt» (2000 kB) The source data file was «SCI180523_095914 - STRIP_W23_Y-Factor_LB__up_20-30-40K_PS0101_23May2018.txt» (1375 kB) Cross-guide’s heater was disconnected, so it wasn’t possible to control TC2 or TC1. TC2 was disconnected too. In conclusion, no control on the cross-guide, but the test is considered to be fully valid. Polarization procedure has been repeated after refill of the cooler's gas. Therefore, there are slight differences for the channel offsets and offsets at HEMTs turned off. Offsets inserted are the ones recorded just after the end of this "down test" have been inserted. |
| Author | claudio |
| Date of creation | |
| JSON record | Link |
- Download data file (408.2 KB)
HEMT biases
| HEMT | Vd [V] | Id [mA] | Vg [mV] |
|---|---|---|---|
| H0 (HA1) | 0.501 | 4.1 | 341.0 |
| H1 (HB1) | 0.501 | 5.13 | 369.0 |
| H2 (HA2) | 0.44 | 11.66 | 509.0 |
| H3 (HB2) | 0.401 | 13.21 | 518.0 |
| H4 (HA3) | 0.44 | 11.66 | 509.0 |
| H5 (HB3) | 0.401 | 13.21 | 518.0 |
Temperatures
| TA1 [K] | TA2 [K] | TB1 [K] | TB2 [K] | Tp1 [K] | Tp2 [K] | Tc1 [K] | Tc2 [K] | |
|---|---|---|---|---|---|---|---|---|
| 20.0 | 19.5 | 50.0 | 40.7 | 24.0 | 18.8 | 13.3 | 11.0 |
|
| 20.0 | 19.5 | 40.0 | 32.8 | 24.0 | 18.8 | 13.3 | 11.0 |
|
| 20.0 | 19.5 | 30.0 | 25.2 | 24.0 | 18.8 | 13.3 | 11.0 |
|
| 20.0 | 19.5 | 20.0 | 15.2 | 24.0 | 18.8 | 13.3 | 11.0 |
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