| Lines 5-7 were replaced by lines 5-7 |
| - risk of problems, especially at the beginning of an experiment. In order to |
| - minimize beam time losses due to ... 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 to be established: |
| Lines 9-16 were replaced by lines 9-10 |
| - ''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'' |
| + * The experiments must start on a working day, early in the morning. |
| Lines 19-23 were replaced by lines 13-17 |
| - ''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. |
| + ''Dilution refrigerator experiments'' |
| + * Sample changes must be planned on working days |
| + * Experiments should not start on Fridays or at a day before a holiday. |
| + If a beam block begins at such a day, the mounting and cooldown of the |
| + dilution refrigerator should be planned for the day before. |
| Lines 25-26 were replaced by line 19 |
| - for the case where the stick is already used immediately before. In this |
| - case the rules for sample changes apply. |
| + for the case where the stick is already used immediately before. |
| Lines 28-38 were replaced by lines 21-24 |
| - sample must start before 8 a.m. Be aware that a delay of a working day |
| - may occur after a sample change. |
| - |
| - ''Dilution Scheduling Policy'' |
| - |
| - Since we have 2 dilution sticks, the number of experiments with this type |
| - of equipment has raised severely. We suggest to implement a limit the number |
| - of dilution experiments by the number of SINQ beam days divided by 7. |
| - This limit is based on an average experiment length of less than 6 days, |
| - and will allow to establish a schedule, where most of the time only |
| - one dilution refrigerator is running at a time. |
| + sample must start early in the morning. |
| + * The number of dilution refrigerator experiments is limited. Experiments |
| + during internal beam time have to be approved by Joël Mesot (scientific |
| + relevance for LNS) and by Markus Zolliker (availability). |
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