| Lines 428-430 were replaced by line 428 |
| - |
| - ''Carbon resistors for lambda point refrigerator (Ohm):'' |
| - |
| + ||Carbon resistors for lambda point refrigerator |
| Lines 438-449 were replaced by line 436 |
| - Energisation Rate |
| - |
| - Symmetric Errergisation: |
| - |
| - Energisation Current (A) |
| - Energisation Rate (A/min) |
| - |
| - 0 to 75 |
| - 3.0 |
| - |
| - 75 to 90 |
| - 2.0 |
| + ''Energisation Rate'' |
| Lines 451-452 were replaced by line 438 |
| - 90 to 100.75 |
| - 1.0 |
| + Symmetric Energisation: |
| Lines 454-456 were replaced by lines 440-444 |
| - 100.75 to 113.34 |
| - Important, only at 2.2 K! |
| - 0.5 |
| + ||Energisation Current (A)||Energisation Rate (A/min) |
| + | 0 to 75 |3.0 |
| + |75 to 90 |2.0 |
| + |90 to 100.75|1.0 |
| + |100.75 to 113.34\\''Important: only at 2.2 K!''|0.5 |
| Lines 460-461 were replaced by lines 448-450 |
| - Energisation Current (A) |
| - Energisation Rate (A/min) |
| + ||Energisation Current (A)||Energisation Rate (A/min) |
| + |0 to 75 |5.0 |
| + |75 to 91.35|2.0 |
| Lines 463-464 were replaced by line 452 |
| - 0 to 75 |
| - 5.0 |
| + ''Achieving Persistent Mode'' |
| Removed lines 466-470 |
| - 75 to 91.35 |
| - 2.0 |
| - |
| - Achieving Persistent Mode |
| - |
| Lines 473-474 were replaced by line 456 |
| - |
| - For TAS7 users: |
| + ''For TAS7 users:'' |
| Removed line 478 |
| - |
| Lines 481-578 were replaced by lines 462-478 |
| - Temperature as measured |
| - by carbon resistor sensors |
| - (k ohms) (Allen Bradley) |
| - Approximate time after starting operation (minutes) |
| - Pressure (mbar) |
| - |
| - R1 |
| - R2 |
| - R3 |
| - R4 |
| - |
| - |
| - |
| - 0.976 |
| - 1.021 |
| - 1.015 |
| - 1.062 |
| - 0 |
| - 1000 |
| - |
| - 0.976 |
| - 1.022 |
| - 1.153 |
| - 1.311 |
| - 10 |
| - 45 |
| - |
| - 0.981 |
| - 1.448 |
| - .1343 |
| - 1.492 |
| - 20 |
| - 40 |
| - |
| - 0.989 |
| - 1.670 |
| - 1.568 |
| - 1.721 |
| - 30 |
| - 40 |
| - |
| - 1.015 |
| - 1.997 |
| - 1.900 |
| - 2.051 |
| - 40 |
| - 30 |
| - |
| - 1.100 |
| - 2.860 |
| - 2.595 |
| - 2.780 |
| - 50 |
| - 30 |
| - |
| - 1.097 |
| - 3.252 |
| - 3.140 |
| - 3.272 |
| - 60 |
| - 30 |
| - |
| - 1.190 |
| - 4.075 |
| - 4.115 |
| - 4.321 |
| - 70 |
| - 30 |
| - |
| - 3.840 |
| - 4.080 |
| - 4.390 |
| - 5.130 |
| - 80 |
| - 30 |
| - |
| - Start to energize magnet |
| - from 8 T to 9 T. |
| - |
| - |
| - |
| - 3.850 |
| - 4.090 |
| - 4.420 |
| - 5.640 |
| - 115 |
| - 30 |
| - |
| - 9 Tesla achieved |
| - |
| - |
| - |
| - 3.860 |
| - 4.100 |
| - 4.440 |
| - 5.930 |
| - |
| - |
| + Resitance values of carbon resistors |
| + |
| + ||R1\\(kOhm)||R2\\(kOhm)||R3\\(kOhm)||R4\\(kOhm)|approximate\\time after starting\\operation (min.)|Pressure (mbar) |
| + |0.976|1.021|1.015|1.062|0|1000 |
| + |0.976|1.022|1.153|1.311|10|45 |
| + |0.981|1.448|.1343|1.492|20|40 |
| + |0.989|1.670|1.568|1.721|30|40 |
| + |1.015|1.997|1.900|2.051|40|30 |
| + |1.100|2.860|2.595|2.780|50|30 |
| + |1.097|3.252|3.140|3.272|60|30 |
| + |1.190|4.075|4.115|4.321|70|30 |
| + |3.840|4.080|4.390|5.130|80|30 |
| + | | | | | |Start to energize magnet\\from 8 T to 9 T. |
| + |3.850|4.090|4.420|5.640|115|30 |
| + | | | | | |9 Tesla achieved |
| + |3.860|4.100|4.440|5.930| | |
| + |
| Lines 582-894 were replaced by lines 482-578 |
| - Useful helium capacity: 45 litres |
| - Nitrogen capacity: 43 litres |
| - Typical liquid helium boil off rate at 4.2 K (no current in magnet leads, VTI needle valve closed): 330 cc/hr |
| - Typical liquid nitrogen boil off: 630 cc/hr |
| - (The boil off can rise to 750 cc/hr when full current is in the leads). |
| - |
| - 1. Allen-Bradley and Rhodium-iron Temperature Sensor Characteristics |
| - |
| - (a). Typical values of temperature versus resistance for an Allen-Bradley carbon resistor with nominal resistance at room temperature of 100 ohms and 270 ohms. |
| - |
| - (b). Typical values of resistance versus temperature for a 4-wire Rhodium Iron sensor with a nominal resistance of 27 ohms at 273 Kelvin. |
| - |
| - (c). Please note that this sheet is a guide for cooldown monitoring purposes only, and is not a substitute for a full calibration. |
| - |
| - |
| - Temperature (Kelvin) |
| - Allen-Bradley Resistance (W) |
| - Rhodium-lron sensor (W) |
| - |
| - 500 |
| - 475 |
| - 425 |
| - 373 |
| - 323 |
| - 300 |
| - 280 |
| - 260 |
| - 240 |
| - 220 |
| - 200 |
| - 190 |
| - 180 |
| - 170 |
| - 160 |
| - 150 |
| - 140 |
| - 130 |
| - 120 |
| - 110 |
| - 100 |
| - 95 |
| - 90 |
| - 85 |
| - 80 |
| - 75 |
| - 70 |
| - 65 |
| - 60 |
| - 55 |
| - 50 |
| - 45 |
| - 40 |
| - 35 |
| - 30 |
| - 28 |
| - 26 |
| - 24 |
| - 22 |
| - 20 |
| - 18 |
| - 16 |
| - 14 |
| - 12 |
| - 10 |
| - 9 |
| - 8 |
| - 7 |
| - 6 |
| - 5.5 |
| - 4.5 |
| - 4.2 |
| - 4 |
| - 3.75 |
| - 3.5 |
| - 3.25 |
| - 3 |
| - 2.8 |
| - 2.6 |
| - 2.4 |
| - 2.2 |
| - 2 |
| - 1.9 |
| - 1.8 |
| - 1.7 |
| - 1.6 |
| - 1.55 |
| - - |
| - - |
| - - |
| - - |
| - - |
| - 100 |
| - 100.5 |
| - 101 |
| - 102 |
| - 103 |
| - 104 |
| - 104.5 |
| - 105 |
| - 106 |
| - 107 |
| - 108 |
| - 109 |
| - 110 |
| - 112 |
| - 114 |
| - 116 |
| - 117 |
| - 118 |
| - 120 |
| - 122 |
| - 124 |
| - 126 |
| - 128 |
| - 131 |
| - 135 |
| - 140 |
| - 145 |
| - 150 |
| - 158 |
| - 170 |
| - 175 |
| - 180 |
| - 190 |
| - 200 |
| - 210 |
| - 225 |
| - 241 |
| - 269 |
| - 300 |
| - 350 |
| - 390 |
| - 440 |
| - 520 |
| - 625 |
| - 700 |
| - 950 |
| - 1050 |
| - 1150 |
| - 1300 |
| - 1500 |
| - 1700 |
| - 2100 |
| - 2400 |
| - 2950 |
| - 3500 |
| - 4400 |
| - 5650 |
| - 6800 |
| - 8000 |
| - 10000 |
| - 12400 |
| - 14000 |
| - - |
| - - |
| - - |
| - - |
| - - |
| - 270 |
| - 273 |
| - 276 |
| - 280 |
| - 285 |
| - 290 |
| - 293 |
| - 296 |
| - 299 |
| - 304 |
| - 309 |
| - 314 |
| - 320 |
| - 326 |
| - 334 |
| - 343 |
| - 348 |
| - 354 |
| - 360 |
| - 367 |
| - 375 |
| - 384 |
| - 395 |
| - 407 |
| - 420 |
| - 435 |
| - 455 |
| - 485 |
| - 520 |
| - 560 |
| - 580 |
| - 610 |
| - 640 |
| - 680 |
| - 730 |
| - 790 |
| - 860 |
| - 980 |
| - 1120 |
| - 1350 |
| - 1510 |
| - 1770 |
| - 2170 |
| - 2700 |
| - 3100 |
| - 4500 |
| - 5000 |
| - 5500 |
| - 6200 |
| - 7100 |
| - 8400 |
| - 10000 |
| - 12300 |
| - 15000 |
| - 19500 |
| - 25500 |
| - 35000 |
| - 41000 |
| - 49000 |
| - 60000 |
| - 83000 |
| - 100000 |
| - 51.4 |
| - 48.2 |
| - 42.8 |
| - 37.5 |
| - 32.2 |
| - 29.8 |
| - 27.8 |
| - 25.7 |
| - 23.74 |
| - 21.73 |
| - 19.69 |
| - 18.67 |
| - 7.66 |
| - 16.64 |
| - 15.87 |
| - 14.53 |
| - 13.46 |
| - 12.37 |
| - 11.38 |
| - 10.24 |
| - 9.20 |
| - 8.70 |
| - 8.18 |
| - 7.68 |
| - 7.19 |
| - 6.72 |
| - 6.27 |
| - 5.82 |
| - 5.43 |
| - 5.05 |
| - 4.73 |
| - 4.43 |
| - 4.17 |
| - 3.94 |
| - 3.75 |
| - 3.67 |
| - 3.60 |
| - 3.53 |
| - 3.45 |
| - 3.36 |
| - 3.28 |
| - 3.18 |
| - 3.07 |
| - 2.95 |
| - 2.81 |
| - 2.73 |
| - 2.65 |
| - 2.56 |
| - 2.45 |
| - 2.40 |
| - 2.28 |
| - 2.25 |
| - 2.22 |
| - 2.19 |
| - 2.16 |
| - |
| - Approximate % error due to magnetic fields: |
| - |
| - |
| - Sensor |
| - Allen-Bradley Resistor |
| - Rhodium-iron |
| - |
| - Field |
| - 2K |
| - 4.2K |
| - 50K |
| - 77K |
| - |
| - 0.5 |
| - 0.5 |
| - - |
| - 0.1 |
| - 8T |
| - 1.5 |
| - 3 |
| - - |
| - 0.5 |
| - 14T |
| - 4 |
| - 6 |
| - - |
| - 1.5 |
| - 1T |
| - 0.13 |
| - 0.13 |
| - 0.14 |
| - - |
| - 3T |
| - 0.88 |
| - 0.79 |
| - 0.84 |
| - - |
| + |Useful helium capacity|45 litres |
| + |Nitrogen capacity|43 litres |
| + |Typical liquid helium boil off rate at 4.2 K\\(no current in magnet leads, VTI needle valve closed)| 330 cc/hr |
| + |Typical liquid nitrogen boil off| 630 cc/hr |
| + |" when current in the leads | < 750 cc/hr |
| + |
| + ''Allen-Bradley and Rhodium-iron Temperature Sensor Characteristics'' |
| + |
| + * Typical values of temperature versus resistance for an Allen-Bradley carbon resistor with nominal resistance at room temperature of 100 ohms and 270 ohms. |
| + * Typical values of resistance versus temperature for a 4-wire Rhodium Iron sensor with a nominal resistance of 27 ohms at 273 Kelvin. |
| + * Please note that this sheet is a guide for cooldown monitoring purposes only, and is not a substitute for a full calibration. |
| + |
| + |
| + ||Temperature\\(Kelvin)||Allen-Bradley (100 Ohm)\\(Ohm)||Allen-Bradley (270 Ohm)\\(Ohm)||Rhodium-Iron\\(Ohm) |
| + |500| | |51.4 |
| + |475| | |48.2 |
| + |425| | |42.8 |
| + |373| | |37.5 |
| + |323| | |32.2 |
| + |300|100|270|29.8 |
| + |280|100.5|273|27.8 |
| + |260|101|276|25.7 |
| + |240|102|280|23.74 |
| + |220|103|285|21.73 |
| + |200|104|290|19.69 |
| + |190|104.5|293|18.67 |
| + |180|105|296|7.66 |
| + |170|106|299|16.64 |
| + |160|107|304|15.87 |
| + |150|108|309|14.53 |
| + |140|109|314|13.46 |
| + |130|110|320|12.37 |
| + |120|112|326|11.38 |
| + |110|114|334|10.24 |
| + |100|116|343|9.2 |
| + |95|117|348|8.7 |
| + |90|118|354|8.18 |
| + |85|120|360|7.68 |
| + |80|122|367|7.19 |
| + |75|124|375|6.72 |
| + |70|126|384|6.27 |
| + |65|128|395|5.82 |
| + |60|131|407|5.43 |
| + |55|135|420|5.05 |
| + |50|140|435|4.73 |
| + |45|145|455|4.43 |
| + |40|150|485|4.17 |
| + |35|158|520|3.94 |
| + |30|170|560|3.75 |
| + |28|175|580|3.67 |
| + |26|180|610|3.6 |
| + |24|190|640|3.53 |
| + |22|200|680|3.45 |
| + |20|210|730|3.36 |
| + |18|225|790|3.28 |
| + |16|241|860|3.18 |
| + |14|269|980|3.07 |
| + |12|300|1120|2.95 |
| + |10|350|1350|2.81 |
| + |9|390|1510|2.73 |
| + |8|440|1770|2.65 |
| + |7|520|2170|2.56 |
| + |6|625|2700|2.45 |
| + |5.5|700|3100|2.4 |
| + |4.5|950|4500|2.28 |
| + |4.2|1050|5000|2.25 |
| + |4|1150|5500|2.22 |
| + |3.75|1300|6200|2.19 |
| + |3.5|1500|7100|2.16 |
| + |3.25|1700|8400| |
| + |3|2100|10000| |
| + |2.8|2400|12300| |
| + |2.6|2950|15000| |
| + |2.4|3500|19500| |
| + |2.2|4400|25500| |
| + |2|5650|35000| |
| + |1.9|6800|41000| |
| + |1.8|8000|49000| |
| + |1.7|10000|60000| |
| + |1.6|12400|83000| |
| + |1.55|14000|100000| |
| + |
| + ''Approximate % error due to magnetic fields:'' |
| + |
| + Allen Bradley Resistors: |
| + |
| + ||Field ||8 T || 14 T |
| + ||2K | 1.5 | 4 |
| + ||4.2K | 3 | 6 |
| + ||77K | 0.5 | 1.5 |
| + |
| + Rhodium-Iron Resistors: |
| + |
| + ||Field || 1 T || 3 T |
| + ||2K | 0.14 | 0.88 |
| + ||4.2K | 0.13 | 0.79 |
| + ||50K | 0.14 | 0.84 |
LIN