Lines 5-6 were replaced by lines 5-7 |
- risk of problems, especially at the beginning of an experiment. We therefore |
- suggest to implement rules for this type of experiments. |
+ risk of problems, especially at the beginning of an experiment. In the evening |
+ and on weekends, there is only very limited technical support. In order to |
+ minimize beam time losses, some rules have been established: |
Lines 8-15 were replaced by line 9 |
- ''Restrictions concerning magnets and/or dilution refrigerator experiments'' |
- * On weekends or holidays, is not possible to start magnet or dilution |
- refrigerator experiments |
- * Support during weekend or in the evening may not be provided (there is no |
- sample environment stand-by). If problems occur, it should be tried to |
- contact the sample environment staff, but not during the night |
- (10 p.m. - 8 a.m.). In the case that the contact can not be established, |
- the experiment might have to be suspended until the next working day. |
+ ''Experiments with superconducting magnets and/or dilution refrigerator experiments'' |
Lines 18-25 were replaced by lines 12-16 |
- ''Restrictions concerning dilution refrigerator experiments'' |
- * On weekends or holidays, sample changes are not possible |
- * Experiments starting on Fridays (or at a day before a holiday) are only |
- allowed at the beginning of a beam block, i.e. when the refrigerator |
- can already be mounted on the instrument the day before. |
- * The sample must be ready a workday before starting the experiment, except |
- for the case where the stick is already used immediately before. In this |
- case the rules for sample changes apply. |
+ ''Dilution refrigerator experiments'' |
+ * Sample changes must be done on working days |
+ * The sample must in general be ready (put on/into a suitable holder) |
+ in the morning of a workday before starting |
+ the experiment, except when the stick is already used immediately before. |
Lines 27-28 were replaced by line 18 |
- sample must start before 8 a.m. Be aware that a delay of a working day |
- may occur after a sample change. |
+ sample must start early in the morning. |
Line 30 was replaced by lines 20-21 |
- ''Dilution Scheduling Policy'' |
+ See also [Scheduling Policy for Superconducting Magnets and Dilution Refrigerators|MagnetDilutionSchedulingPolicy] (intended mainly for |
+ instrument responsibles) |
Removed lines 32-53 |
- Since we have 2 dilution sticks, the number of experiments with this type |
- of equipment has raised severely. |
- |
- ||Period ||SINQ beam days||Dil Expt.||Dil Days||DD||Points||Overbooking |
- |Aug-Dez 2006|98 |15 |88 |15 |133 | 12 % |
- |Apr-Aug 2007|93 |17 |96 |35 |147 | 26 % |
- |
- |Period | | Aug-Dez 2006 | Apr-Aug 2007 |
- |SINQ beam days |s| 95 | 93 |
- |number of dilution expts. |n| 15 | 17 |
- |total dilution usage [[days] |d| 88 | 96 |
- |dil1 & dil2 running simultaously [[days]| | 15 | 35 |
- |points used/planned | p = n * 3 + d | 133 | 147 |
- |points limit | l = s * 1.25 | 119 | 116 |
- |overbooking | o = (p / l - 1) * 100 %| 12 %| 27 % |
- |
- Legend: |
- \\DD Days with both sticks running simultaeously |
- \\Points |
- days beamdays dil double exp. |
- 114 98 88 15 15 |
- 120 93 96 35 17 |