At line 2 added 5 lines. |
+ More Information on intranet page (drawing): [LdmWiki:MA09] |
+ |
+ [ma09a.jpg] |
+ [ma09b.jpg] |
+ |
Lines 14-16 were replaced by lines 19-21 |
- |TASP |6 Tesla |with goniometer, goniometer motors removed |
- |TASP |9 Tesla |without goniometer unit |
- |Rita-II |4 Tesla |with goniometer, goniometer motors removed |
+ |TASP |6 Tesla |with goniometer, goniometer motors removed, distance to Be filter: > 20 cm |
+ |TASP |9 Tesla |without goniometer unit, monochromator 2theta > 75, distance to Be filter[1]: > 22 cm\\7.9 Tesla: 2theta > 55 ? |
+ |Rita-II |4 Tesla\\9 Tesla|with goniometer, goniometer motors removed\\without goniometer |
Lines 18-21 were replaced by lines 23-28 |
- |HRPT |?? |force measurements to be redone |
- |FOCUS |9 Tesla |distance magnet center to mono center 2 m, 2theta < 132 deg or magnet surface to guide surface > 0.9 m |
- |TriCS |4 Tesla | |
- |Morpheus |3.5 Tesla |with X-Y table, dist. to diaphragmas at least 250 mm |
+ |HRPT |4 Tesla |without RC shielding [2] |
+ |FOCUS |9 Tesla |magnetic rail and motor of radial collimator removed\\distance magnet center to mono center 2 m, 2theta < 132 deg or magnet surface to guide surface > 0.9 m |
+ |TriCS |2 Tesla |due to problems with omega-encoder (from the forces 4 T is possible) |
+ |Morpheus |3.5 Tesla |with X-Y table, dist. to diaphragmas at least 250 mm, omega motor not in use |
+ |Morpheus |2 Tesla |with omega motor |
+ [1|#1] on TASP: [MA09/taspFilterMA09.png] |
Line 23 was replaced by lines 30-31 |
- !Pending Issues |
+ [2|#2] on HRPT: [MA09/RCshielding.jpg][MA09/RCmotor.jpg]\\ |
+ The RC shielding (left picture) has to be removed. One of the pieces making trouble is probably the RC motor (right picture). |
Lines 25-30 were replaced by lines 33-35 |
- * The magnet seems not to work reliably with the lambda stage |
- (2 quenches during an expt. in Decemper 2006. A user claimed |
- that the switch heater power is too low when using the lambda |
- stage. We did a test in February 2007, with the following results: |
- No quench up to 9 Tesla. With the coil at 4 K the switch heater power |
- needed is about 0.8 W. The maximum switch heater power is 1.4 W. |
+ On all other Instruments, MA09 can not yet be used. |
+ |
+ !Pending Issues |
At line 36 added 13 lines. |
+ * The magnet seemed not to work reliably with the lambda stage |
+ (2 quenches during an expt. on TASP in November 2006). The reason is |
+ not yet clear. A user claimed that the switch heater power is too low |
+ when using the lambda stage. It seems that this is not the case |
+ (see [MA09switchHeater]). |
+ A test in February 2007 showed no quench up to 9 Tesla. However, |
+ if we extrapolate the force measurements at 5 Tesla, we get forces |
+ near 1000 kN both vertically and horizontally (with shortened distance |
+ sample - mono). At normal distance, the horizontal forces are much lower, |
+ and the vertical forces should be reduced after replacing the A3 motor box. |
+ We now believe that during the quench, the magnet was too close to the |
+ magnetic beam dump of TASP. |
+ |
At line 39 added 4 lines. |
+ |
+ |
+ [TASP adapter| taspMa9_1.jpg] [TASP adapter |taspMa9_2.jpg] |
+ |